Today, I want to talk about the equatorial coordinate system. Start with this: What if we could project Earth's coordinates of longitude and latitude into the sky? Latitude wouldn't be a problem, but ...

As hobbies go, stargazing has a pretty low barrier to entry. All you really need is a pair of Mark 1 eyeballs and maybe a little caffeine to help you stay up late enough. Astronomy, on the other hand, ...

ANNOUNCEMENT OF A NEW COMET.—Mr. W. N. Abbot, the British schoolboy in Athens who recently announced the brightening of Beta Ceti, now reports the discovery of a comet on June 12. The Right Ascension ...

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 ...