Created
January 10, 2013 00:12
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from datetime import datetime | |
import ephem | |
from pytz import timezone, utc | |
def is_visible(body): | |
alt = body.alt | |
if (0 <= alt <= 180): | |
return alt | |
return None | |
# to see a list of cities, use ephem.cities._city_data.keys() | |
try: | |
here = ephem.city('Boulder') | |
except: | |
here = ephem.Observer() | |
here.name = 'Boulder' | |
#here.lat, here.lon, here.elevation = 40, -105.17, 1700 | |
here.lat, here.lon, here.elevation = '40:1.28.30', '-105:15.35.09', 1700 | |
here.pressure = 0 | |
tz = timezone('US/Mountain') | |
utcer = lambda d: utc.localize(d.datetime()) | |
localtimer = lambda d: tz.normalize(d.astimezone(tz)) | |
now = utc.localize(datetime.utcnow()) | |
here.date = now | |
sun = ephem.Sun(here) | |
moon = ephem.Moon(here) | |
venus = ephem.Venus(here) | |
mars = ephem.Mars(here) | |
jupiter = ephem.Jupiter(here) | |
saturn = ephem.Saturn(here) | |
### | |
events = [] | |
def append(*args): | |
events.append(args) | |
# rising examples | |
append("Sunrise", here.next_rising(sun)) | |
append("Moonrise", here.next_rising(moon)) | |
append("Venus rise", here.next_rising(venus)) | |
append("Mars rise", here.next_rising(mars)) | |
append("Jupiter rise", here.next_rising(jupiter)) | |
append("Saturn rise", here.next_rising(saturn)) | |
# setting examples | |
here.horizon='4' # add a custom value for Boulder | |
append("Sunset", here.next_setting(sun)) | |
#append("Moonset", here.next_setting(moon)) | |
# moon examples | |
append("Full moon", ephem.next_full_moon(here.date)) | |
# solstice examples | |
append("Solstice", ephem.next_solstice(here.date)) | |
append("Equinox", ephem.next_equinox(here.date)) | |
# | |
events.sort(key = lambda et: et[-1]) | |
for e, nt in events[:4]: | |
t = utcer(nt) | |
print e, localtimer(t), t-now |
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