Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Your email address will only be used for EarthSky content.
?
Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
EarthSky
Updates on your cosmos and world
Tonight
Space
Earth
Human World
Best Places to Stargaze
EarthSky Community Photos
About
Store
Donate
Contact Us
Subscribe
Tonight
Tonight
Brightest Stars
Astronomy Essentials
Moon Phases
Clusters Nebulae Galaxies
Favorite Star Patterns
Constellations
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Marcy Curran
September 7, 2024
Tonight
Orion’s Belt points to Sirius on September mornings
Deborah Byrd
September 6, 2024
Clusters Nebulae Galaxies
The Andromeda galaxy: All you need to know
Bruce McClure
September 5, 2024
Space
Sun
Earth
Human
Human
Spaceflight
Best Places to Stargaze
Community Photos
View Community Photos
Trending
Submit a Photo
About
Store
Donate
Home
/
Categories
/
Category: Sky Archive
Kochab and Pherkad: Outer bowl stars of the Little Dipper
Kochab and Pherkad are the two outer stars in the bowl of the Little Dipper. They were the pole stars from 1500 BC to 500 BC.
Deborah Byrd
April 18, 2024
10 tips for watching the Geminids in 2023
The Geminids make up a rich and much-loved annual meteor shower that peaks in mid-December. Here are 10 tips for watching the Geminids in 2023.
Deborah Byrd
December 13, 2023
Observing meteors: Top 10 tips for the Perseids
The 2021 Perseid meteor shower is rising to its peak and many are observing meteors. Here are our best 10 tips for watching this shower, or any other!
Editors of EarthSky
August 1, 2023
Perseus the Hero and a Demon Star
The star name Algol comes from the Arabic for "head of the demon." Come to know this star, and point it out to your friends this Halloween.
Deborah Byrd
October 27, 2022
Circumpolar stars stay up all night long
Circumpolar stars are those that never rise nor set from a certain location. At the poles, all stars are circumpolar, while at the equator, no star is.
Bruce McClure
February 18, 2022
Ursid meteor shower peaks morning of December 22
The Ursid meteor shower always peaks around the December solstice. The dark hours before dawn are best. This year, a nearly full moon interferes.
Deborah Byrd
December 19, 2021
Find Perseid and Delta Aquariid radiant points
Every late July and August, two excellent meteor showers overlap. Here's how to find the Perseid and Delta Aquariid radiant points.
Deborah Byrd
July 26, 2021
Come to know the Summer Triangle
Coming to know the Summer Triangle, then seeing it again and again on summer nights, is a deep pleasure that adds to the enjoyment of this season.
Bruce McClure
June 4, 2021
Leo loses his tail. We gain a constellation
The constellation Leo once had a tail, a clump of faint stars. Now these same stars are known as Coma Berenices, the hair of a queen.
Larry Sessions
April 9, 2021
Big Dipper stars point to North Star
The 2 outermost stars in the bowl of the Big Dipper always point to the North Star, aka Polaris. That's why astronomers call these stars The Pointers.
Deborah Byrd
February 1, 2021
1 / 66
Next