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Menopausal Mother Nature

News about Climate Change and our Planet


Orion’s Belt points to dazzling Sirius

It’s one of the neatest tricks in all the heavens … Orion’s Belt points to Sirius in the constellation Canis Major the Greater Dog. Sirius is the brightest star in the nighttime sky. It’s up before dawn now but will be shifting into the evening sky as the months pass. Orion is found in the predawn morning sky every September.

Sirius is Dog Star and brightest star

Yes, you can find Orion. If you go outside and look south to southeast before dawn now, you’ll notice Orion’s Belt, which consists of a short, straight row of medium-bright stars. Just draw a line through Orion’s Belt and extend that line toward the horizon. You’ll easily spot Sirius, the sky’s brightest star.

Sirius is in the constellation Canis Major the Greater Dog. It’s often called the Dog Star.

Two planets (Venus and Jupiter) shine more brilliantly than Sirius, but you simply can’t mistake either planet for Sirius in the September 2019 morning sky. Venus is now lost in the sun’s glare, whereas Jupiter sets before Sirius rises. Once again, use Orion’s Belt to locate Sirius in the southeast sky.

Early morning twilight with stars and Orion labeled.

Orion, Sirius, Venus and more as seen on August 30, 2017, by Tom Wildoner. He took the photo from the U.S. state of Pennsylvania, but these stars and Venus can be seen from around the world now, in the direction of sunrise before the sun comes up. Read more about this photo.

Bottom line: In September 2019, you’ll find the constellation Orion, whose three Belt stars make a short, straight row, in the southeast before dawn. Orion’s Belt points to Sirius, the brightest star of the nighttime sky.

Fastest sunsets of the year around equinox time

Help support EarthSky! Check out the EarthSky store for fun astronomy gifts and tools for all ages!

EarthSky astronomy kits are perfect for beginners. Order yours from the EarthSky store.


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