Sky Conditions & Moon Phase
Click the graphic above for additional forecast information.
Cloud cover is the most important parameter to consider when planning your visit to the Observatory. One of the best resources for checking detailed short-range sky conditions is the Clear Sky Chart.
Cloud cover is the most important parameter to consider when planning your visit to the Observatory. One of the best resources for checking detailed short-range sky conditions is the Clear Sky Chart.
Moon Phase
The Moon itself is a fascinating object to observe. However, even though the Full Moon is a beautiful sight to behold, it is very bright. While the brighter stars and planets are unaffected, the Milky Way and dimmer "deep sky" objects such as Galaxies and Nebulae can be overpowered by bright moonlight. The periods around the New Moon and Crescent phases are the best times for observation of these fainter objects:
If your primary interests lie in viewing "deep sky" objects, please consult the monthly lunar calendar below for new and waxing/waning crescent moon phases when planning your visit to the GOSP.
2017 LUNAR CALENDAR