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3D Star Map
Raw
nearest_stars.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>A star map</title>
<style>
html {
background-color: black;
color: white;
}
body {
margin: 0;
}
canvas {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<script src="https://ajax.googleapis.com/ajax/libs/threejs/r83/three.min.js"></script>
<script src="https://cdn.rawgit.com/mrdoob/three.js/r83/examples/js/controls/TrackballControls.js"></script>
<script>
/**
* 3D star map
* Copyright © 2017, 2019 Timothy Pederick
*
* Uses the three.js library and its TrackballControls.js example:
* Copyright © 2010-2017 three.js authors
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// Embedded JSON data file. This data may be reused under CC-BY-SA 4.0
// (the rest of the code is under the MIT Licence, as above).
<body>
<script src="three.js"></script>
<script src="TrackballControls.js"></script>
<script>
var data = {"systems": [
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Sun",
"othernames": [
"Sol"
],
"SIMBAD": null,
"distance": 0.0,
"ra": null,
"dec": null,
"magnitude": 4.83,
"class": "G2V",
"mass": 1.0
}
]
},
{
"name": "Alpha Centauri",
"othernames": [
"α Cen"
],
"SIMBAD": "@9700397",
"stars": [
{
"name": "Proxima Centauri",
"othernames": [
"Alpha Centauri C",
"α Cen C",
"Gliese 551",
"GJ 551",
"V645 Cen"
],
"SIMBAD": "@3379714",
"parallax": 768.85,
"ra": [14, 29, 42.9],
"dec": [-62, 40, 46.2],
"magnitude": 15.5,
"class": "M5.5Ve",
"mass": 0.12
},
{
"name": "Rigil Kentaurus",
"othernames": [
"Alpha Centauri A",
"α Cen A",
"Gliese 559 A",
"GJ 559 A"
],
"SIMBAD": "@3396054",
"parallax": 747.23,
"ra": [14, 39, 36.5],
"dec": [-60, 50, 2.4],
"magnitude": 4.38,
"class": "G2V",
"mass": 1.1
},
{
"name": "Toliman",
"othernames": [
"Alpha Centauri B",
"α Cen B",
"Gliese 559 B",
"GJ 559 B"
],
"SIMBAD": "@3396297",
"parallax": 747.23,
"ra": [14, 39, 35.1],
"dec": [-60, 50, 15.1],
"magnitude": 5.71,
"class": "K1V",
"mass": 0.91
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Barnard’s Star",
"othernames": [
"Gliese 699",
"GJ 699",
"Proxima Ophiuchi"
],
"SIMBAD": "@2669393",
"parallax": 545.51,
"ra": [17, 57, 48.5],
"dec": [4, 41, 36.1],
"magnitude": 13.2,
"class": "M4V",
"mass": 0.14
}
]
},
{
"name": "Luhman 16",
"othernames": [
"LUH 16",
"WISE J104915.57−531906.1",
"WISE 1049−5319"
],
"SIMBAD": "@8048683",
"stars": [
{
"name": "Luhman 16 A",
"othernames": [
"LUH 16 A",
"WISE J104915.57−531906.1 A",
"WISE 1049−5319 A"
],
"SIMBAD": "@8399769",
"parallax": 495,
"ra": [10, 49, 19.0],
"dec": [-53, 19, 10],
"magnitude": null,
"class": "L7.5",
"mass": 0.045
},
{
"name": "Luhman 16 B",
"othernames": [
"LUH 16 B",
"WISE J104915.57−531906.1 B",
"WISE 1049−5319 B"
],
"SIMBAD": "@8399770",
"parallax": 495,
"ra": [10, 49, 18.9],
"dec": [-53, 19, 9],
"magnitude": null,
"class": "T0.5",
"mass": 0.040
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "WISE J085510.83−071442.5",
"othernames": [
"WISEA J085510.74−071442.5",
"WISE 0855−0714"
],
"SIMBAD": "@8596164",
"parallax": 449,
"ra": [8, 55, 10.8],
"dec": [-7, 14, 42.5],
"magnitude": null,
"class": "Y2",
"mass": 0.0062
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Wolf 359",
"othernames": [
"CN Leonis",
"CN Leo",
"Gliese 406",
"GJ 406"
],
"SIMBAD": "@1769389",
"parallax": 419.10,
"ra": [10, 56, 28.8],
"dec": [7, 0, 52.3],
"magnitude": 16.6,
"class": "M6Ve",
"mass": 0.090
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Lalande 21185",
"othernames": [
"Gliese 411",
"GJ 411",
"HD 95735"
],
"SIMBAD": "@1764001",
"parallax": 393.25,
"ra": [11, 3, 20.2],
"dec": [35, 58, 11.6],
"magnitude": 10.5,
"class": "M2V",
"mass": 0.46
}
]
},
{
"name": "Sirius",
"othernames": [
"Alpha Canis Majoris",
"α CMa",
"Gliese 244"
],
"SIMBAD": "@8399845",
"stars": [
{
"name": "Sirius A",
"othernames": [
"Alpha Canis Majoris A",
"α CMa A",
"Gliese 244 A"
],
"SIMBAD": "@930529",
"parallax": 380.02,
"ra": [6, 45, 8.9],
"dec": [-16, 42, 58.0],
"magnitude": 1.42,
"class": "A1V",
"mass": 2.0
},
{
"name": "Sirius B",
"othernames": [
"Alpha Canis Majoris B",
"α CMa B",
"Gliese 244 B"
],
"SIMBAD": "@930049",
"parallax": 380.02,
"ra": [6, 45, 9.3],
"dec": [-16, 43, 0.7],
"magnitude": 11.2,
"class": "DA1.9",
"mass": 0.98
}
]
},
{
"name": "Luyten 726-8",
"othernames": [
"L 726-8",
"Gliese 65",
"GJ 65",
"Giclas 272-61",
"G 272-61"
],
"SIMBAD": "@1297617",
"stars": [
{
"name": "Luyten 726-8 A",
"othernames": [
"L 726-8 A",
"BL Ceti",
"BL Cet",
"Gliese 65 A",
"GJ 65 A",
"Giclas 272-61 A",
"G 272-61 A"
],
"SIMBAD": "@1297616",
"parallax": 373.70,
"ra": [1, 39, 1.4],
"dec": [-17, 57, 2.4],
"magnitude": 15.4,
"class": "M5.5V",
"mass": 0.10
},
{
"name": "Luyten 726-8 B",
"othernames": [
"L 726-8 B",
"UV Ceti",
"UV Cet",
"Gliese 65 B",
"GJ 65 B",
"Giclas 272-61 B",
"G 272-61 B"
],
"SIMBAD": "@1297613",
"parallax": 373.70,
"ra": [1, 39, 1.6],
"dec": [-17, 57, 1.1],
"magnitude": 15.9,
"class": "M6V",
"mass": 0.10
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Ross 154",
"othernames": [
"V1216 Sagittarii",
"V1216 Sgr",
"Gliese 729",
"GJ 729"
],
"SIMBAD": "@2523169",
"parallax": 337.22,
"ra": [18, 49, 49.4],
"dec": [-23, 50, 10.5],
"magnitude": 13.1,
"class": "M3.5Ve",
"mass": 0.17
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Ross 248",
"othernames": [
"HH Andromedae",
"HH And",
"Gliese 905",
"GJ 905"
],
"SIMBAD": "@1587975",
"parallax": 316.37,
"ra": [23, 41, 55.0],
"dec": [44, 10, 38.8],
"magnitude": 14.8,
"class": "M5.0V",
"mass": 0.14
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Rán",
"othernames": [
"Ran",
"Epsilon Eridani",
"ε Eri",
"Gliese 144",
"GJ 144"
],
"SIMBAD": "@643684",
"parallax": 311.22,
"ra": [3, 32, 55.8],
"dec": [-9, 27, 29.7],
"magnitude": 6.19,
"class": "K2V",
"mass": 0.82
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Lacaille 9352",
"othernames": [
"Lac 9352",
"Gliese 887",
"GJ 887",
"HD 217987"
],
"SIMBAD": "@1191721",
"parallax": 305.08,
"ra": [23, 5, 52.0],
"dec": [-35, 51, 11.1],
"magnitude": 9.80,
"class": "M2V",
"mass": 0.50
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Ross 128",
"othernames": [
"FI Virginis",
"FI Vir",
"Gliese 447",
"GJ 447"
],
"SIMBAD": "@1847655",
"parallax": 298.14,
"ra": [11, 47, 44.4],
"dec": [0, 48, 16.4],
"magnitude": 13.5,
"class": "M4V",
"mass": 0.15
}
]
},
{
"name": "EZ Aquarii",
"othernames": [
"EZ Aqr",
"Gliese 866",
"GJ 866"
],
"SIMBAD": "@1302062",
"stars": [
{
"name": "EZ Aquarii A",
"othernames": [
"EZ Aqr A",
"Gliese 866 A",
"GJ 866 A"
],
"SIMBAD": null,
"parallax": 289.50,
"ra": [22, 38, 33.6],
"dec": [-15, 17, 59.8],
"magnitude": 15.3,
"class": "M5V",
"mass": 0.11
},
{
"name": "EZ Aquarii B",
"othernames": [
"EZ Aqr B",
"Gliese 866 B",
"GJ 866 B"
],
"SIMBAD": null,
"parallax": 289.50,
"ra": [22, 38, 33.6],
"dec": [-15, 17, 59.8],
"magnitude": 15.6,
"class": "M?V",
"mass": 0.11
},
{
"name": "EZ Aquarii C",
"othernames": [
"EZ Aqr C",
"Gliese 866 C",
"GJ 866 C"
],
"SIMBAD": null,
"parallax": 289.50,
"ra": [22, 38, 33.6],
"dec": [-15, 17, 59.8],
"magnitude": 17.4,
"class": "M?V",
"mass": 0.08
}
]
},
{
"name": "61 Cygni",
"SIMBAD": "@675",
"othernames": [
"61 Cyg",
"Bessel’s Star",
"Piazzi’s Flying Star",
"Gliese 820",
"GJ 820"
],
"stars": [
{
"name": "61 Cygni A",
"othernames": [
"61 Cyg A",
"Bessel’s Star A",
"Piazzi’s Flying Star A",
"Gliese 820 A",
"GJ 820 A"
],
"SIMBAD": "@837",
"parallax": 286.08,
"ra": [21, 6, 53.9],
"dec": [38, 44, 57.9],
"magnitude": 7.51,
"class": "K5V",
"mass": 0.70
},
{
"name": "61 Cygni B",
"othernames": [
"61 Cyg B",
"Bessel’s Star B",
"Piazzi’s Flying Star B",
"Gliese 820 A",
"GJ 820 A"
],
"SIMBAD": "@676",
"parallax": 286.08,
"ra": [21, 6, 55.3],
"dec": [38, 44, 31.4],
"magnitude": 8.23,
"class": "K7V",
"mass": 0.63
}
]
},
{
"name": "Procyon",
"othernames": [
"Alpha Canis Minoris",
"α CMi",
"Gliese 280",
"GJ 280"
],
"SIMBAD": "@988145",
"stars": [
{
"name": "Procyon A",
"othernames": [
"Alpha Canis Minoris A",
"α CMi A",
"Gliese 280 A",
"GJ 280 A"
],
"SIMBAD": null,
"parallax": 285.17,
"ra": [7, 39, 18.1],
"dec": [5, 13, 30.0],
"magnitude": 2.66,
"class": "F5IV-V",
"mass": 1.5
},
{
"name": "Procyon B",
"othernames": [
"Alpha Canis Minoris B",
"α CMi B",
"Gliese 280 B",
"GJ 280 B"
],
"SIMBAD": "@988144",
"parallax": 285.17,
"ra": [7, 39, 17.9],
"dec": [5, 13, 26.8],
"magnitude": 13.0,
"class": "DQZ",
"mass": 0.60
}
]
},
{
"name": "Struve 2398",
"othernames": [
"Σ 2398",
"Gliese 725",
"GJ 725"
],
"SIMBAD": "@286488",
"stars": [
{
"name": "Struve 2398 A",
"othernames": [
"Σ 2398 A",
"Gliese 725 A",
"GJ 725 A",
"HD 173739"
],
"SIMBAD": "@286870",
"parallax": 283.83,
"ra": [18, 42, 46.7],
"dec": [59, 37, 49.4],
"magnitude": 11.2,
"class": "M3V",
"mass": 0.33
},
{
"name": "Struve 2398 B",
"othernames": [
"Σ 2398 B",
"Gliese 725 B",
"GJ 725 B",
"HD 173740"
],
"SIMBAD": "@286486",
"parallax": 283.83,
"ra": [18, 42, 46.9],
"dec": [59, 37, 36.7],
"magnitude": 12.0,
"class": "M3.5V",
"mass": 0.25
}
]
},
{
"name": "Groombridge 34",
"othernames": [
"Gmb 34",
"Gliese 15",
"GJ 15"
],
"SIMBAD": "@1589106",
"stars": [
{
"name": "Groombridge 34 A",
"othernames": [
"Gmb 34 A",
"Gliese 15 A",
"GJ 15 A",
"GX Andromedae",
"GX And"
],
"SIMBAD": "@1588878",
"parallax": 279.87,
"ra": [0, 18, 22.9],
"dec": [44, 1, 22.6],
"magnitude": 10.3,
"class": "M2V",
"mass": 0.40
},
{
"name": "Groombridge 34 B",
"othernames": [
"Gmb 34 B",
"Gliese 15 B",
"GJ 15 B",
"GQ Andromedae",
"GQ And"
],
"SIMBAD": "@1588880",
"parallax": 279.87,
"ra": [0, 18, 25.8],
"dec": [44, 1, 38.1],
"magnitude": 13.3,
"class": "M3.5Ve",
"mass": 0.16
}
]
},
{
"name": "Epsilon Indi",
"othernames": [
"ε Ind",
"Gliese 845",
"GJ 845"
],
"SIMBAD": "@8399847",
"stars": [
{
"name": "Epsilon Indi A",
"othernames": [
"ε Ind A",
"Gliese 845 A",
"GJ 845 A"
],
"SIMBAD": "@3387848",
"parallax": 276.07,
"ra": [22, 3, 21.7],
"dec": [-56, 47, 9.5],
"magnitude": 6.89,
"class": "K5V",
"mass": 0.76
},
{
"name": "Epsilon Indi Ba",
"othernames": [
"ε Ind Ba",
"Epsilon Indi B",
"Gliese 845 B",
"GJ 845 B"
],
"SIMBAD": "@3387843",
"parallax": 276.07,
"ra": [22, 4, 10.5],
"dec": [-56, 46, 57.7],
"magnitude": null,
"class": "T1V",
"mass": 0.066
},
{
"name": "Epsilon Indi Bb",
"othernames": [
"ε Ind Bb",
"Epsilon Indi C",
"Gliese 845 C",
"GJ 845 C"
],
"SIMBAD": null,
"parallax": 276.07,
"ra": [22, 4, 10.5],
"dec": [-56, 46, 57.7],
"magnitude": null,
"class": "T6V",
"mass": 0.047
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "DX Cancri",
"othernames": [
"DX Cnc",
"Gliese–Jahreiß 1111",
"GJ 1111",
"Giclas 51-15",
"G 51-15"
],
"SIMBAD": "@1089081",
"parallax": 275.80,
"ra": [8, 29, 49.4],
"dec": [26, 46, 33.6],
"magnitude": 17.0,
"class": "M6.5Ve",
"mass": 0.090
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Tau Ceti",
"othernames": [
"τ Cet",
"Gliese 71",
"GJ 71"
],
"SIMBAD": "@1298185",
"parallax": 273.97,
"ra": [1, 44, 4.1],
"dec": [-15, 56, 14.9],
"magnitude": 5.69,
"class": "G8V",
"mass": 0.78
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese–Jahreiß 1061",
"othernames": [
"GJ 1061",
"Luyten 372-58",
"L 372-58"
],
"SIMBAD": "@2984511",
"parallax": 272.01,
"ra": [3, 35, 59.7],
"dec": [-44, 30, 45.7],
"magnitude": 15.3,
"class": "M5.5V",
"mass": 0.11
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "YZ Ceti",
"othernames": [
"YZ Cet",
"Gliese 54.1",
"GJ 54.1"
],
"SIMBAD": "@11684871",
"parallax": 269.08,
"ra": [1, 12, 30.6],
"dec": [-16, 59, 56.4],
"magnitude": 14.2,
"class": "M4.0Ve",
"mass": 0.085
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Luyten’s Star",
"othernames": [
"Gliese 273",
"GJ 273",
"BD+05 1668"
],
"SIMBAD": "@971564",
"parallax": 266.23,
"ra": [7, 27, 24.5],
"dec": [5, 13, 32.8],
"magnitude": 11.9,
"class": "M3.5V",
"mass": 0.26
}
]
},
{
"name": "SCR J1845−6357",
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "SCR J1845−6357 A",
"othernames": [],
"SIMBAD": "@3432893",
"parallax": 259.50,
"ra": [18, 45, 5.3],
"dec": [-63, 57, 47.5],
"magnitude": 19.4,
"class": "M8.5V",
"mass": 0.070
},
{
"name": "SCR J1845−6357 B",
"othernames": [],
"SIMBAD": "@3432894",
"parallax": 259.50,
"ra": [18, 45, 5.5],
"dec": [-63, 57, 46.3],
"magnitude": null,
"class": "T6",
"mass": 0.043
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Teegarden’s Star",
"othernames": [
"2MASS J02530084+1652532",
"2M0253+16",
"SO J025300.5+165258"
],
"SIMBAD": "@1486570",
"parallax": 259.41,
"ra": [2, 53, 0.9],
"dec": [16, 52, 52.6],
"magnitude": 17.2,
"class": "M7.0V",
"mass": 0.080
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Kapteyn’s Star",
"othernames": [
"VZ Pictoris",
"VZ Pic",
"Gliese 191",
"GJ 191"
],
"SIMBAD": "@2966222",
"parallax": 255.67,
"ra": [5, 11, 40.6],
"dec": [-45, 1, 6.4],
"magnitude": 10.9,
"class": "M1VIp",
"mass": 0.27
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Lacaille 8760",
"othernames": [
"AX Microscopii",
"AX Mic",
"Gliese 825",
"GJ 825"
],
"SIMBAD": "@3501159",
"parallax": 253.44,
"ra": [21, 17, 15.3],
"dec": [-38, 52, 2.5],
"magnitude": 8.69,
"class": "M1V",
"mass": 0.60
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
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"name": "Luyten 788-34",
"othernames": [
"L 788-34",
"Gliese–Jahreiß 4274",
"GJ 4274"
],
"SIMBAD": "@1292969",
"parallax": 138.18,
"ra": [22, 23, 7.0],
"dec": [-17, 36, 26.3],
"magnitude": 14.0,
"class": "M4.5Ve",
"mass": null
}
]
},
{
"name": "Gliese 667",
"othernames": [
"GJ 667",
"HD 156384"
],
"SIMBAD": "@2362060",
"stars": [
{
"name": "Gliese 667 A",
"othernames": [
"GJ 667 A",
"HD 156384 A"
],
"SIMBAD": "@2361578",
"parallax": 138.02,
"ra": [17, 18, 56.4],
"dec": [-34, 59, 22.5],
"magnitude": 7.1,
"class": "K3",
"mass": 0.73
},
{
"name": "Gliese 667 B",
"othernames": [
"GJ 667 B",
"HD 156384 B"
],
"SIMBAD": "@2361579",
"parallax": 138.02,
"ra": [17, 18, 56.2],
"dec": [-34, 59, 22.2],
"magnitude": 8.1,
"class": "K4",
"mass": 0.69
},
{
"name": "Gliese 667 C",
"othernames": [
"GJ 667 C",
"HD 156384 C"
],
"SIMBAD": "@2361576",
"parallax": 138.02,
"ra": [17, 18, 58.8],
"dec": [-34, 59, 48.6],
"magnitude": 10.9,
"class": "M1.5V",
"mass": 0.31
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "WISE J004945.61+215120.0",
"othernames": [
"WISE 0049+2151"
],
"SIMBAD": "@8423939",
"distance": 24.1,
"ra": [0, 49, 45.6],
"dec": [21, 51, 20.0],
"magnitude": null,
"class": "T8.5",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "2MASS J15074769−1627386",
"othernames": [
"2M1507−1627",
"WISEA J150747.56−162749.3",
"WISE 1507−1627"
],
"SIMBAD": "@2528159",
"parallax": 135.23,
"ra": [15, 7, 47.7],
"dec": [-16, 27, 40.1],
"magnitude": 22.8,
"class": "L5V",
"mass": null
}
]
},
{
"name": "Gliese–Jahreiß 3991",
"othernames": [
"GJ 3991",
"Giclas 203-47",
"G 203-47"
],
"SIMBAD": "@11682936",
"stars": [
{
"name": "Gliese–Jahreiß 3991 A",
"othernames": [
"GJ 3991 A",
"Giclas 203-47 A",
"G 203-47 A"
],
"SIMBAD": null,
"parallax": 134.60,
"ra": [17, 9, 31.5],
"dec": [43, 40, 52.7],
"magnitude": 14.3,
"class": "M3.5V",
"mass": 0.20
},
{
"name": "Gliese–Jahreiß 3991 B",
"othernames": [
"GJ 3991 B",
"Giclas 203-47 B",
"G 203-47 B"
],
"SIMBAD": null,
"parallax": 134.60,
"ra": [17, 9, 31.5],
"dec": [43, 40, 52.7],
"magnitude": 17,
"class": "D?12",
"mass": 0.50
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "96 G. Piscium",
"othernames": [
"96 G Psc",
"Gliese 33",
"GJ 33",
"HD 4628"
],
"SIMBAD": "@1405432",
"parallax": 134.50,
"ra": [0, 48, 23.0],
"dec": [5, 16, 50.2],
"magnitude": 6.37,
"class": "K2.5V",
"mass": 0.70
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Luyten 499-56",
"othernames": [
"L 499-56",
"Gliese–Jahreiß 4248",
"GJ 4248"
],
"SIMBAD": "@1161496",
"parallax": 134.29,
"ra": [22, 2, 29.4],
"dec": [-37, 4, 51.4],
"magnitude": null,
"class": "M3.0V",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Beta Hydri",
"othernames": [
"β Hyi",
"Gliese 19",
"GJ 19"
],
"SIMBAD": "@3274779",
"parallax": 134.07,
"ra": [0, 25, 45.1],
"dec": [-77, 15, 15.3],
"magnitude": 3.45,
"class": "G0V",
"mass": 1.08
}
]
},
{
"name": "Mu Cassiopeiae",
"othernames": [
"μ Cas",
"Gliese 53",
"GJ 53",
"WDS J01083+5455 A"
],
"SIMBAD": "@83443",
"stars": [
{
"name": "Mu Cassiopeiae A",
"othernames": [
"μ Cas A",
"Gliese 53 A",
"GJ 53 A",
"WDS J01083+5455 Aa"
],
"SIMBAD": null,
"parallax": 132.38,
"ra": [1, 8, 16.4],
"dec": [54, 55, 13.2],
"magnitude": 5.78,
"class": "G5Vb",
"mass": 0.74
},
{
"name": "Mu Cassiopeiae B",
"othernames": [
"μ Cas B",
"Gliese 53 B",
"GJ 53 B",
"WDS J01083+5455 Ab"
],
"SIMBAD": null,
"parallax": 132.38,
"ra": [1, 8, 16.4],
"dec": [54, 55, 13.2],
"magnitude": 11.6,
"class": "M?",
"mass": 0.17
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "107 Piscium",
"othernames": [
"107 Psc",
"Gliese 68",
"GJ 68"
],
"SIMBAD": "@1476565",
"parallax": 131.49,
"ra": [1, 42, 29.8],
"dec": [20, 16, 6.7],
"magnitude": 5.87,
"class": "K1V",
"mass": 0.83
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "TW Piscis Austrini",
"othernames": [
"TW PsA",
"Alpha Piscis Austrini B",
"α PsA B",
"Fomalhaut B"
],
"SIMBAD": "@1221244",
"parallax": 131.44,
"ra": [22, 56, 24.1],
"dec": [-31, 33, 56.0],
"magnitude": 7.08,
"class": "K4Ve",
"mass": 0.73
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese 514",
"othernames": [
"GJ 514",
"Ross 490",
"BD+11 2576"
],
"SIMBAD": "@2133068",
"parallax": 131.24,
"ra": [13, 29, 59.8],
"dec": [10, 22, 37.8],
"magnitude": 9.6,
"class": "M1.0Ve",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Giclas 141-36",
"othernames": [
"G 141-36",
"2MASS J18481752+0741210",
"2M1848+07"
],
"SIMBAD": "@2687868",
"parallax": 131.20,
"ra": [18, 48, 17.5],
"dec": [7, 41, 21.2],
"magnitude": null,
"class": "M5.0V",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Giclas 258-33",
"othernames": [
"G 258-33",
"Gliese–Jahreiß 4053",
"GJ 4053"
],
"SIMBAD": "@312477",
"parallax": 130.77,
"ra": [18, 18, 57.2],
"dec": [66, 11, 33.3],
"magnitude": null,
"class": "M4.5V",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Vega",
"othernames": [
"Alpha Lyrae",
"α Lyr",
"Gliese 721",
"GJ 721"
],
"SIMBAD": "@2900336",
"parallax": 130.23,
"ra": [18, 36, 56.3],
"dec": [38, 47, 1.3],
"magnitude": 0.58,
"class": "A0Va",
"mass": 2.14
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "LP 876-10",
"othernames": [
"Alpha Piscis Austrini C",
"α PsA C",
"Fomalhaut C"
],
"SIMBAD": "@1254390",
"parallax": 130.30,
"ra": [22, 48, 4.5],
"dec": [-24, 22, 7.7],
"magnitude": 13.2,
"class": "M4.0Ve",
"mass": 0.18
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "VX Arietis",
"othernames": [
"VX Ari",
"Gliese 109",
"GJ 109"
],
"SIMBAD": "@1524060",
"parallax": 130.19,
"ra": [2, 44, 15.5],
"dec": [25, 31, 24.1],
"magnitude": 11.1,
"class": "M3V",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Fomalhaut",
"othernames": [
"Alpha Piscis Austrini A",
"α PsA A",
"Fomalhaut A"
],
"SIMBAD": "@1235748",
"parallax": 129.81,
"ra": [22, 57, 39.0],
"dec": [-29, 37, 20.1],
"magnitude": 1.72,
"class": "A4V",
"mass": 1.92
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese 673",
"othernames": [
"GJ 673",
"HD 157881"
],
"SIMBAD": "@2652923",
"parallax": 129.62,
"ra": [17, 25, 45.2],
"dec": [2, 6, 41.1],
"magnitude": 8.06,
"class": "K7V",
"mass": 0.6
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Giclas 192-13",
"othernames": [
"G 192-13",
"Gliese–Jahreiß 3378",
"GJ 3378"
],
"SIMBAD": "@334780",
"parallax": 129.46,
"ra": [6, 1, 11.0],
"dec": [59, 35, 49.9],
"magnitude": null,
"class": "M4.0Ve",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "SCR J0740−4257",
"othernames": [
"2MASS J07401183−4257406",
"2M0740−42"
],
"SIMBAD": "@3780428",
"parallax": 125.08,
"ra": [7, 40, 11.8],
"dec": [-42, 57, 40.3],
"magnitude": 14.3,
"class": "M4.5",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese–Jahreiß 1151",
"othernames": [
"GJ 1151",
"Giclas 122-49",
"G 122-49"
],
"SIMBAD": "@589914",
"parallax": 124.41,
"ra": [11, 50, 57.7],
"dec": [48, 22, 38.6],
"magnitude": null,
"class": "M7",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "IRAS 21500+5903",
"othernames": [
"TYC 3980-1081-1"
],
"SIMBAD": "@157642",
"parallax": 123.06,
"ra": [21, 51, 38.3],
"dec": [59, 17, 39.9],
"magnitude": null,
"class": "M?",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese 300",
"othernames": [
"GJ 300",
"Luyten 674-15",
"L 674-15",
"LHS 1989"
],
"SIMBAD": "@1053853",
"parallax": 120.1,
"ra": [8, 12, 40.9],
"dec": [-21, 33, 7.0],
"magnitude": 13.2,
"class": "M3.5V",
"mass": 0.17
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "2MASS J15464185-5534468",
"othernames": [
"2M1546−55",
"SCR J1546−5534"
],
"SIMBAD": "@6201386",
"parallax": 119.09,
"ra": [15, 46, 41.7],
"dec": [-55, 34, 47.5],
"magnitude": null,
"class": "M7.5",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "WISE J071322.55−291751.9",
"othernames": [
"WISE 0713−2917"
],
"SIMBAD": "@7834506",
"parallax": 108.7,
"ra": [7, 13, 22.6],
"dec": [-29, 17, 52.0],
"magnitude": null,
"class": "Y0",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "RBS 661",
"othernames": [
"2MASS J05332802−4257205",
"2M0533−42",
"SCR J0533−4257"
],
"SIMBAD": "@819092",
"parallax": 96.63,
"ra": [5, 33, 28.0],
"dec": [-42, 57, 20.6],
"magnitude": null,
"class": "M4.5",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Gliese–Jahreiß 4063",
"othernames": [
"GJ 4063",
"LP 229-17"
],
"SIMBAD": "@2923680",
"parallax": 91.85,
"ra": [18, 34, 36.7],
"dec": [40, 7, 26.4],
"magnitude": 16.6,
"class": "M4V",
"mass": null
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "Giclas 180-60",
"othernames": [
"G 180-60",
"Gliese–Jahreiß 3959",
"GJ 3959"
],
"SIMBAD": "@2942036",
"parallax": 88.8598,
"ra": [16, 31, 18.4],
"dec": [40, 51, 54],
"magnitude": 15.7,
"class": "M6V",
"mass": 0.10
}
]
},
{
"name": "Gliese–Jahreiß 2130",
"othernames": [
"GJ 2130"
],
"SIMBAD": null,
"stars": [
{
"name": "Gliese–Jahreiß 2130 A",
"othernames": [
"GJ 2130 A",
"HD 318327",
"CD−32 13297"
],
"SIMBAD": "@2384933",
"parallax": 71.45,
"ra": [17, 46, 12.8],
"dec": [-32, 6, 9.1],
"magnitude": 11.5,
"class": "M2V",
"mass": 0.30
},
{
"name": "Gliese–Jahreiß 2130 B",
"othernames": [
"GJ 2130 B",
"CD−32 13298 A"
],
"SIMBAD": "@2384932",
"parallax": 71.45,
"ra": [17, 46, 14.4],
"dec": [-32, 6, 8.4],
"magnitude": 12.8,
"class": "M2V",
"mass": 0.18
},
{
"name": "Gliese–Jahreiß 2130 C",
"othernames": [
"GJ 2130 C",
"CD−32 13298 B"
],
"SIMBAD": null,
"parallax": 71.45,
"ra": [17, 46, 14.4],
"dec": [-32, 6, 8],
"magnitude": 13.8,
"class": "M?V",
"mass": 0.15
}
]
},
{
"name": null,
"othernames": [],
"SIMBAD": null,
"stars": [
{
"name": "WISE J053516.80−750024.9",
"othernames": [
"WISE 0535−7500"
],
"SIMBAD": "@7834505",
"parallax": 70,
"ra": [5, 35, 16.8],
"dec": [-75, 0, 24.9],
"magnitude": null,
"class": "Y1",
"mass": null
}
]
}
]};
var COLOURS = {
"W": 0x66bbff,
"O": 0x88bbff,
"B": 0xaabbff,
"A": 0xccddff,
"F": 0xeeeeff,
"G": 0xffeeee,
"K": 0xffddbb,
"M": 0xffbb66,
"S": 0xffaa55,
"C": 0xff9944,
"L": 0xff7711,
"T": 0xff3300,
"Y": 0xbb3300,
"D": 0xffffff
};
var DEFAULT_LINE_MATERIAL = new THREE.LineBasicMaterial({color: 0xffffff});
var DEFAULT_MESH_MATERIAL = new THREE.MeshBasicMaterial({color: 0xffffff});
var LY_PER_PARSEC = 3.2615638;
/**
* dms: Convert degrees (or hours), minutes, and seconds to decimal hours.
*
* Arguments:
* d_m_s -- A three-element array comprising degrees (or hours),
* minutes and seconds.
* Returns:
* A float.
*/
function dms(d_m_s) {
var [d, m, s] = d_m_s;
return (Math.abs(d) + (m + s / 60.0) / 60.0) * (d < 0 ? -1 : 1);
}
/**
* cart: Convert equatorial coordinates to Cartesian coordinates.
*
* Arguments:
* dist -- The distance of the point from the origin.
* ra -- The right ascension of the point, as a three-element
* array comprising hours, minutes and seconds.
* dec -- The declination of the point, as a three-element
* array comprising degrees, minutes and seconds.
* Returns:
* A Vector3 instance.
*/
function cart(dist, ra, dec) {
if (dist == 0) {
return new THREE.Vector3(0, 0, 0);
}
var azimuth = dms(ra) * Math.PI / 12.0;
var inclination = (90.0 - dms(dec)) * Math.PI / 180.0;
return new THREE.Vector3(dist * Math.sin(inclination) * Math.cos(azimuth),
dist * Math.sin(inclination) * Math.sin(azimuth),
dist * Math.cos(inclination));
}
/**
* largestStar: Find the largest (most massive) star in a system.
*
* Arguments:
* system -- An associative array defining "stars" as an
* array of associative arrays.
* Returns:
* An associative array.
*/
function largestStar(system) {
var currentStar;
system["stars"].forEach(function (star) {
if (!currentStar ||
!currentStar["mass"] ||
(star["mass"] && star["mass"] > currentStar["mass"])) {
currentStar = star;
}
});
return currentStar;
}
/**
* starDistance: Determine the distance to a star, in light-years.
*
* Arguments:
* star -- An associative array defining either "distance" (as
* a float, in light-years) or "parallax" (as a float, in
* milliarcseconds).
* Returns:
* A float.
*/
function starDistance(star) {
var dist;
if ("distance" in star) {
dist = star["distance"];
} else {
parallax_mas = star["parallax"];
if (!parallax_mas) {
dist = 0.0;
} else {
dist = LY_PER_PARSEC * 1000.0 / parallax_mas;
}
}
return dist;
}
/**
* starSize: Get a display size for a star.
*
* Arguments:
* star -- An associative array possibly defining "mass".
* Returns:
* A float.
*/
function starSize(star) {
var MIN_RADIUS = 0.01;
var RADIUS_SCALE = 0.5;
var mass = star["mass"];
if (!mass) {
mass = 0.01;
}
return Math.max(MIN_RADIUS, mass * RADIUS_SCALE);
}
/**
* drawCircle: Draw a circle with a given centre and radius.
*
* Arguments:
* scene -- The Scene instance to draw the circle in.
* c -- The coordinates of the centre of the circle (an instance
* of Vector3).
* r -- The radius of the circle.
* material -- The Material instance to draw the circle with. If
* omitted, DEFAULT_MESH_MATERIAL (flat white) is used.
* Returns:
* The Mesh instance created.
*/
function drawCircle(scene, c, r, material) {
var geometry = new THREE.CircleGeometry(r, 32);
if (!material) {
material = DEFAULT_MESH_MATERIAL;
}
var circle = new THREE.Mesh(geometry, material);
circle.position.copy(c);
scene.add(circle);
return circle;
}
/**
* textCanvas: Write a string on a hidden canvas.
*
* Arguments:
* s -- The string to write on the canvas.
* bg -- The background colour. Defaults to "black".
* fg -- The text colour. Defaults to "white".
* size -- The text size, in pixels. Defaults to 12.
* font -- The font to use. Defaults to "sans-serif".
*
* Returns:
* The canvas element created.
*/
function textCanvas(s, bg, fg, size, font) {
const LINE_HEIGHT_PROPORTION = 1.5; // Allows for descenders.
const PADDING = 1;
// Set default arguments.
if (!bg) bg = "black";
if (!fg) fg = "white";
if (!size) size = 12;
if (!font) font = "sans-serif";
// Make the canvas and size it appropriately.
var txtCanvas = document.createElement("canvas");
var ctx = txtCanvas.getContext("2d");
ctx.font = `${size}px ${font}`;
txtCanvas.width = ctx.measureText(s).width + 2 * PADDING;
txtCanvas.height = LINE_HEIGHT_PROPORTION * size + 2 * PADDING;
// Fill the background and then write on it.
ctx.fillStyle = bg;
ctx.fillRect(0, 0, txtCanvas.width, txtCanvas.height);
ctx.fillStyle = fg;
ctx.font = `${size}px ${font}`; // Apparently it forgets the font after resizing?
ctx.fillText(s, PADDING, size + PADDING);
return txtCanvas;
}
/**
* drawName: Create a label below a circle with a given string.
*
* Arguments:
* scene -- The Scene instance to draw the line in.
* c -- The coordinates of the centre of the circle (an instance
* of Vector3).
* r -- The radius of the circle.
* name -- The string to display as the label.
* Returns:
* The Mesh instance created.
*/
function drawName(scene, c, r, name) {
const LABEL_HEIGHT = 0.5;
// Put the text on a canvas and size the geometry appropriately.
var txtCanvas = textCanvas(name);
var geometry = new THREE.PlaneGeometry(txtCanvas.width, txtCanvas.height);
// Create the name plate as a textured mesh with this geometry.
var texture = new THREE.CanvasTexture(txtCanvas);
var textureMaterial = new THREE.MeshBasicMaterial({map: texture});
var namePlate = new THREE.Mesh(geometry, textureMaterial);
// Position the name plate below and in front of the circle.
namePlate.position.copy(c);
namePlate.position.y -= (r + 0.5);
namePlate.position.z += r;
// Rescale the mesh to the desired size.
var scale = LABEL_HEIGHT / txtCanvas.height;
namePlate.scale.x = scale;
namePlate.scale.y = scale;
scene.add(namePlate);
return namePlate;
}
/**
* drawLine: Draw a line between two points.
*
* Arguments:
* scene -- The Scene instance to draw the line in.
* p0, p1 -- The points (instances of Vector3) to draw the line
* between.
* material -- The Material instance to draw the line with. If
* omitted, DEFAULT_LINE_MATERIAL (a white line) is used.
* Returns:
* The Line instance created.
*/
function drawLine(scene, p0, p1, material) {
var geometry = new THREE.Geometry();
geometry.vertices.push(p0);
geometry.vertices.push(p1);
if (!material) {
material = DEFAULT_LINE_MATERIAL;
}
var line = new THREE.Line(geometry, material);
scene.add(line);
return line;
}
/**
* drawStarMap: Draw a 3D star map.
*
* Arguments:
* starSystems -- an array of associative arrays.
*/
function drawStarMap(starSystems) {
var star, dist, pos, r, colourLetter, colour;
var JUMP_MATERIAL = new THREE.LineBasicMaterial({"color": 0x88ff88});
var JUMP_DISTANCE = 7.5;
var FOV = 45;
var aspect = window.innerWidth / window.innerHeight;
var nearClip = 1, farClip = 500;
var camera = new THREE.PerspectiveCamera(FOV, aspect, nearClip, farClip);
camera.position.set(0, 0, 50);
camera.lookAt(new THREE.Vector3(0, 0, 0));
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth - 10, window.innerHeight - 10);
document.body.appendChild(renderer.domElement);
var controls = new THREE.TrackballControls(camera, renderer.domElement);
var scene = new THREE.Scene();
var stars = new Array();
starSystems.forEach(function (starSystem) {
star = largestStar(starSystem);
dist = starDistance(star);
pos = cart(dist, star["ra"], star["dec"]);
r = starSize(star);
colourLetter = star["class"].charAt(0);
if (colourLetter in COLOURS) {
colour = new THREE.MeshBasicMaterial({"color": COLOURS[colourLetter]});
} else {
console.log(`Unknown stellar classification "${colourLetter}"`);
colour = null;
}
// Get a name for the label.
var name_from = starSystem;
if (!name_from["name"]) {
name_from = star;
}
var sysName = name_from["name"];
if (name_from["othernames"].length > 0) {
// Is the first alternative name shorter?
if (sysName.length > name_from["othernames"][0].length) {
sysName = name_from["othernames"][0];
}
}
stars.forEach(function (star) {
var [circle, namePlate] = star;
if (pos.distanceTo(circle.position) < JUMP_DISTANCE) {
drawLine(scene, pos, circle.position, JUMP_MATERIAL);
}
});
stars.push([drawCircle(scene, pos, r, colour),
drawName(scene, pos, r, sysName)]);
});
// function onClick() {
// console.log(camera.position);
// }
// window.addEventListener("click", onClick, false);
function onResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth - 10, window.innerHeight - 10);
controls.handleResize();
}
window.addEventListener("resize", onResize, false);
function render() {
requestAnimationFrame(render);
// Keep stars pointed at camera.
stars.forEach(function (star) {
var [circle, namePlate] = star;
circle.quaternion.copy(camera.quaternion);
namePlate.quaternion.copy(camera.quaternion);
});
renderer.render(scene, camera);
controls.update();
}
render();
}
drawStarMap(data["systems"]);
</script>
</body>
</html>
@fahd3004
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Hi Perey!
Thank you for the code

How can i add names to the stars?

@perey
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Author

perey commented Jul 15, 2019 •
edited

Hi Perey!
Thank you for the code

How can i add names to the stars?

Hey, sorry, I don't think Github notified me that there was a comment on this.

If you mean how can you display the names alongside the circles on the 3D star map, then I don't know. It's something I've thought of doing too but haven't taken the time to figure out. I've recently done an updated data set, though, so I might take the time now.

EDIT: It's done! Labels now appear for all stars.

If you mean how can you add/change the names of the stars in the data, just edit the "name" and "othernames" fields.

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