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Larry Sessions

Bellatrix, in Orion, means Female Warrior

You might know Rigel and Betelgeuse, Orion’s brightest stars. Now meet 2 more stars in Orion, called Bellatrix and Saiph.

Focus on stars Betelgeuse and Rigel

Many constellations have a bright star, but Orion has two: Rigel and Betelgeuse.

Aldebaran is the Bull’s fiery eye

Aldebaran – brightest star in Taurus the Bull – is huge! If it replaced our sun, its surface would extend almost to the orbit of Mercury.

Was the Christmas Star real?

Some possible astronomical explanations for the Star of Bethlehem or Christmas star.

Achernar is the End of the River

Achernar – aka Alpha Eridani – is the 9th brightest star in the sky and the flattest star known.

Small Magellanic Cloud orbits Milky Way

You need to be in Earth’s Southern Hemisphere to see the Small Magellanic Cloud. It looks like a luminous cloud, but it’s really a dwarf galaxy, orbiting our Milky Way.

Alpheratz is part of the Great Square

Finding the star Alpheratz can help you spot the Andromeda Galaxy, the nearest large spiral galaxy to Earth.

5 myths about the moon

Moon myths, take that! Here are 5 of the most common myths about our moon explained.

Fomalhaut had first visible exoplanet

How to see the star Fomalhaut in your sky and a word about Fomalhaut b, the first planet beyond our solar system visible to the eye in photographic images.

Altair is the bright star of the Eagle

Altair needs only 10 hours to spin once on its axis, in contrast to roughly a month for our sun. This mighty star spins on its axis faster than Earth does!