The equatorial coordinate system projects Earth's latitude and longitude onto the celestial sphere, using declination (angular distance from the celestial equator, measured in degrees) and right ...

As the weather gets warmer and clearer skies return, make plans to stargaze over the next several months. Whether you are staying at home or heading out on vacation, your latitude location will play a ...

The autumn equinox is now upon us! Today marks the moment that the sun crosses the celestial equator, ushering in the beginning of astronomical autumn in the northern hemisphere, which brings with it ...