How much of the sky can you see at any one time? This, of course, assumes you are looking up from a wide-open, flat field or out on an ocean liner with nothing but a flat horizon no matter which way ...

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 ...

Every community has a tourist attraction everyone knows about but locals never visit. Perhaps it's because it's always there and can be seen anytime. And yet "anytime" often ends up translating to ...

Celestial Equator: The Imaginary East-West Line That Bisects The Celestial Sphere Into Northern And Southern Halves. The Projection Of Earth’s Equator Into Space….

Since antiquity, the sky has been thought of as a bowl, or celestial sphere, that's directly overhead. The equatorial coordinate system that astronomers use to find stars and other objects is based on ...

The northern stars turn around Polaris and the North Celestial Pole in a composite spanning multiple hours during a single night in the summer of 2014. The bright point at the center is Polaris, our ...

1. For this module, please look through the "lecture" notes for "The Celestial Sphere" and "Celestial Navigation". These notes contain the material, in condensed form, that I will expect you to become ...

New space missions (e.g., NASA-TESS and ESA-PLATO) will perform an in-depth analysis of bright stars in large fields of the celestial sphere searching for extraterrestrial planets and investigating ...