Sirius: Brightest Star In The Night Sky

Sirius, also known as the Dog Star, is the brightest star in the night sky as observed from Earth. Sirius is a binary star system, consisting of two stars: Sirius A (the primary) and Sirius B (the companion).

Chapters
0:00 - Intro
0:53 - Sirius A and Sirius B
6:09 - Finding Sirius using Orion's Belt
6:53 - Winter Triangle to Find Sirius
7:52 - Review of Sirius Binary Star System

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#learnthesky #stargazing #constellations #stars #keeplookingup

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Sirius is my favorite star. Love how it shines with an electric blue ting.

[alxxz]

Excellent, simple and informative video! Thanks for the tips!

[AndersonHarry-cbsx]

Oh, now I get why Sirius Black is named Sirius and why his animagus is a dog.

[alexbowman]

“Dog day afternoon” comes from the ancient Roman belief that very hot summer days were due to the added influence of the Dog Star.

[KlausStoermer]

Can't imagine a better guide to the stars series. Mahalo!

[jnk]

I love to hear your explanations of stars.

[rjsmith]

Aside from being the brightest star visible from earth, it is also the 4th brightest natural object in our night sky, after the moon, Venus, and Jupiter.

[afinepointu]

I love looking at the night sky. My only regret is I've always lived in or near a city so most of the sky is washed out. Still as a child if I could see the stars I never felt alone.

Thank you for grouping all of the important stellar information in each video AND not just mentioning things like "Class" but giving a quick explanation. It is frustrating watching videos where the speaker uses technical jargon forgetting he is speaking to the general public not third year undergraduates.

Kudos to you. I've been adrift in YouTube looking for well made interesting technical videos. Who knew I'd find ones speaking to my heart. And here I was about to let go of my 130mm reflector. There it sits but feet from me aimed up. Where's the duster and lens cleaner?

[chemicalwonderland]

Thank you for this! I noticed it shimmering brilliantly tonight and looked this video up to see what star it was. So cool!

[JustsomeSteve]

Thank you for this very informative and well-made Video! :)

And since this is the first video of yours that I saw, I want to tell you, that you have a very clear and pleasant voice to listen to.
Sounds very professional!

[jamesbondaygee]

It's my favorite star too... Certainly looks to be the most fascinating with all those colors sparkling

[nikox]

Very informative. Easy to follow along. Wish this was longer in a documentary format.

[alexbowman]

It’s actually a three star system, with a recently discovered small third star which was predicted by the African Dogon tribe who claimed they were visited by Aliens from that third star which they call the pebble.

[johnwalters]

At 1:50, is that size comparison between the two stars right? Looks to me like you have Sirius B way too big in comparison to Sirius A. Wikipedia has Sirius at 1.7x the diameter of the Sun, while Sirius B is 0.008x the Sun's diameter. The Hubble image isn't representative of the actual diameters of the two objects, but it's a closer match to the Wikipedia numbers.

[waldemarjanczyk]

Ciekawie przedstawione informacje . Super . Pozdrawiam 😉👍

[steviedirksen]

I have started learning about the stars names from your teaching. Thank you.

[andrewprenzler]

Beautiful and brilliant ending. Stellar!

[JohnShields-xxyk]

I'm looking up right now at dusk and it's the only object I can see, it's Amazing to think of how bright it is, considering the distance. Stunning.

[MarkGrimshaw-jhzp]

Really helpful interesting and informative. Thanks for all your work Janine.

[Sailoralso]

Sirius has another significance. It IS the beginning of our western New Year. On the night of the New Year, , Dec31/Jan 1 At precisely midnight, , the dropping of the ball in Times Square, Sirius is exactly south on the meridian. It IS what was determined to be the start of the New Year.