$near

near.js

var user = Meteor.user();
var centroid = user.profile.locations.home;
var coordinatesArray = [centroid.longitude, centroid.latitude];

Locations.find({
     location:
       { $near :
          {
            $geometry: { type: "Point",  coordinates: coordinatesArray },
            $minDistance: 1000,
            $maxDistance: 5000
          }
       }
})