An arcsecond is a very small angle on the sky; the full moon is more than two million square arcseconds in area.) A decently dark site in a rural area has a sky background of about 21 mag/arcsec 2.

Menlo Park Massive astronomical camera all set to photograph southern night sky After two decades of work, SLAC’s LSST camera will head to Chile in May by Ashwini Gangal April 15, 2024 10:00 am ...

A truly dark night sky is getting harder and harder to find. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

BEND, Ore. (KTVZ) -- Many Central Oregonians were intrigued or puzzled by a line of lights moving slowly across the High Desert sky around 10 p.m. Saturday night. Others, meanwhile, knew right ...

Seeing the Solar System all in one night is a real eye-opener, but some of the planets aren’t easy to find. However, at least five of them are fairly straightforward, and that’s not a bad haul.

Perched high in the Chilean Andes, the observatory will take hundreds of images of the southern hemisphere sky, every night for 10 years. In doing so, it will create the most complete time-lapse ...

What To Watch For In The Night Sky This Week: August 29-September 4, 2022 This is a great week to watch the crescent Moon climb higher into the western sky during twilight. With each passing night ...

DENVER, Colo. (KRDO) – A dozen of Colorado's state parks are now working to reduce light pollution and protect the night sky for stargazers by collaborating with a new dark sky program.