Archaeological sites such as Stonehenge were designed to align with the Sun's position on specific days, primarily solstices. Earth's precession, a 26,000-year cycle, shifts the Earth's axis but does ...

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 ...

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 ...

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 ...

After the long winter in Rochester, we definitely need spring in our collective lives. It’s time for spring to begin. And it will on Sunday, at least astronomically, at 6:21 p.m., the exact moment of ...

The comet is almost at its closest approach to Earth on July 14. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A megacomet glows in the dark in ...

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 ...

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 ...