Enjoying EarthSky? Subscribe.

208,729 subscribers and counting ...

Brightest Stars

Credit: Russell Croman
Science Wire | Mar 17, 2016

Regulus is the Lion’s Heart

Meet Regulus, brightest star in Leo the Lion.

Alphard.  (North Central Kansas Astronomical Society)
Tonight | Mar 10, 2016

Alphard is the Snake’s Heart

You can see Alphard – the Heart of the constellation Hydra the Water Snake – in the evening in March, April, and May.

Golden Pollux. You almost never see an image of this star in the sky without its fellow star, Castor.  But we chose this image because it shows Pollux' yellowish color.  This image is from a post on ScienceBlogs about seeing red in star colors.
Science Wire | Mar 01, 2016

Pollux the brighter Twin star

Being so close together in the sky, Pollux and its brother star Castor are easy to compare. Pollux is brighter and golden in color, while Castor is fainter and white.

Procyon
Tonight | Feb 25, 2016

Procyon the Little Dog Star

The Dog Star, Sirius, is easy to spot because it’s the sky’s brightest star. Procyon – the other Dog Star – is always near its brighter brother on the sky’s dome.

Castor system via Jeremy Perez
Science Wire | Feb 17, 2016

Castor six stars in one

Two stars noticeable for being bright and close together might be Castor and Pollux of the Gemini Twins constellation.

Sirius A and B
Science Wire | Feb 10, 2016

Sirius is Dog Star and brightest star

Sirius – in the constellation Canis Major the Greater Dog – is the sky’s brightest star. It’s very easy to spot on winter and spring evenings.

Canopus seen from ISS
Tonight | Feb 04, 2016

Will you see Canopus?

Canopus is sky’s second-brightest star and easy to spot on February evenings, if …

Betelgeuse imaged in ultraviolet light by the Hubble Space Telescope and subsequently enhanced by NASA. The bright white spot is likely one of this star's poles. Image via NASA/ESA.
Science Wire | Jan 26, 2016

Betelgeuse will explode someday

Someday, the star Betelgeuse will run out of fuel, collapse under its own weight, and then rebound in a spectacular supernova explosion. Someday … but probably not soon.

Elnath represents the Bull's Northern Horn.
Tonight | Jan 20, 2016

Elnath, near galactic anticenter

Second-brightest star in Taurus the Bull and closest bright star to the galactic anticenter – the point in space that lies directly opposite of our Milky Way’s center.

Capella system, via Atlas of the Universe
Tonight | Jan 15, 2016

Capella is two golden stars

We see Capella as the brightest star in the constellation Auriga the Charioteer. It is really two stars, each with a golden color similar to our sun.