I'm using the Google Earth Plugin with the sky map data and I've found a part of the sky that seems to have a glitch. The attached jsfiddle shows the placemark I create and nearby celestial objects as it's flying in, but past a certain point, they all disappear. If you zoom out enough, it comes back, but I can't get zoom in enough.
If I change the star coordinates to something else (e.g. {lat: -4.14463888888889, lng: -74.877625}
), it works just fine. Try it out: