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 ...

Sakaji, the President of the Jordanian Astronomical Society, said that astronomically, spring in the northern hemisphere ...

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 ...

The Griffith Observatory invited the public to join them on Thursday to welcome the start of spring, also known as the vernal equinox. A popular event, it drew a crowd to this annual moment when ...

As someone who has spent thousands of hours observing the night sky, I like to think that I’m pretty familiar with it and able to navigate my way around with some ease. That’s certainly true on the ...