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Hadar is a southern pointer star

Hadar, aka Beta Centauri, joins Alpha Centauri in pointing to the Southern Cross. It’s a triple system. Two of its stars will someday become nearby supernovae.

Artist's concept of Spica from hypothetical planet

Spica is a whirling double star

Spica is a binary star, with two stars larger and hotter than the sun, telescopically indistinguishable from a single point of light.

Image Credit: ESO Online Digitized Sky Survey

Mizar and Alcor, a famous double star

Mizar and its fainter companion star Alcor are located in the handle of the Big Dipper. They are one of the sky’s easiest-to-spot double stars.

Cor Caroli by F. Ringwald, Fresno State

Cor Caroli or Heart of Charles

The star Cor Caroli, or Alpha Canum Venaticorum, is a binary star and the brightest star in the northern constellation Canes Venatici.

Constellation Crux photo by Christopher J Picking in New Zealand.  More information about this photo here.  Used with permission

Mimosa, 2nd-brightest in Southern Cross

You need to be at the latitude of New Orleans, Cairo or New Delhi to glimpse it. From the southern hemisphere, Mimosa is a prominent and beloved star.

Constellation Crux photo by Christopher J Picking in New Zealand.  More information about this photo here.  Used with permission

Acrux, brightest star in Southern Cross

You have to be in the Southern Hemisphere to see Crux – the Southern
Cross – in all its glory. Bluish Acrux, aka Alpha Crucis, is its brightest star.

Credit: Russell Croman

Regulus is the Lion’s Heart

Meet Regulus, brightest star in Leo the Lion.

Alphard.  (North Central Kansas Astronomical Society)

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.

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

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.