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Posts by
Larry Sessions
Top 10 space objects to see during the day
Love astronomy, but don't like to stay up late? Here are the top 10 space objects you can see - under the right conditions - during the day.
July 7, 2023
Massive ruby red Antares is the Scorpion’s Heart
Red Antares, Heart of the Scorpion in the constellation Scorpius, is a mighty star, a red supergiant in the last stages of its life span.
June 29, 2023
It’s summer. What’s noon to you? Midday? High noon?
What do you mean by noon? Do you define it by your clock or wristwatch? Or the gnawing in your stomach? Here's how astronomers think about noontime.
June 20, 2023
Spica, the bright beacon of Virgo, is 2 stars
Spica is a very close, scorching-hot pair of stars, whirling around one another. One of them may go supernova someday. It's the brightest star in Virgo.
May 11, 2023
Meet Regulus, the Lion’s Heart
The bright star Regulus in Leo the Lion is prominent in the evening sky in May. It looks like a single point of light, but is really four stars.
May 9, 2023
Coma Berenices: How Leo the Lion lost his tail
Coma Berenices is the constellation of Queen Berenice's Hair. It used to be the tail of Leo the Lion before it became its own constellation.
April 30, 2023
Brightest Stars
Alpha Centauri, the star system closest to our sun
Our closest stellar neighbors are the 3 stars that are the Alpha Centauri system. They lie just over 4 light-years away (25 trillion miles or 38 trillion km).
April 16, 2023
The Coma Berenices galaxy cluster, best in April and May
Myriads of galaxies, visible only to those with telescopes, shine among the stars of the constellation Coma Berenices. This is the distant Coma Berenices galaxy cluster.
April 13, 2023
Acrux is the brightest star in the Southern Cross
You have to go far south on Earth's globe to see the Southern Cross constellation. Bluish Acrux, aka Alpha Crucis, is its brightest star.
April 2, 2023
Notice the colors of the stars
Winter is the perfect time for noticing the colors of the stars. Start with Capella, then move on to Taurus and Orion. Check out some colorful stars tonight!
February 16, 2023
