logo
Previous Thread
Next Thread
Print Thread
Joined: May 2010
Posts: 9,774
Likes: 10
BellaOnline Editor
Iron Age Human
OP Offline
BellaOnline Editor
Iron Age Human
Joined: May 2010
Posts: 9,774
Likes: 10

The Solar System's nearest neighbor is the triple star system commonly known as Alpha Centauri. Two of the stars are similar to the Sun, and there are two confirmed planets orbiting a red dwarf.

Alpha Centauri – 10 Facts about Our Neighbor


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy
Sponsored Post Advertisement
Joined: May 2010
Posts: 9,774
Likes: 10
BellaOnline Editor
Iron Age Human
OP Offline
BellaOnline Editor
Iron Age Human
Joined: May 2010
Posts: 9,774
Likes: 10

Here's a photo of Crux and part of Centaurus. Note Alpha Centauri (which is a binary star), Proxima (the red dwarf with two super-earth planets) and Beta Centauri. Alpha and Beta Centauri are the "southern pointers" - they point to the red giant Gacrux at the head of the Southern Cross in the constellation Crux.

Image Credit & License: Y. Beletsky (LCO), ESO, Pale Red Dot Team


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy
Joined: May 2010
Posts: 9,774
Likes: 10
BellaOnline Editor
Iron Age Human
OP Offline
BellaOnline Editor
Iron Age Human
Joined: May 2010
Posts: 9,774
Likes: 10

The nearest star to us - beyond the Sun, of course - is Proxima, part of the Alpha Centauri triplet. Proxima is a red dwarf star. Looking up at a clear, dark sky, you can see thousands of stars. Yet without binoculars or a telescope, this most common type of star is invisible. The small, cool red dwarfs fill the sky and live practically forever.

Do Red Dwarfs Live Forever


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy
Joined: May 2010
Posts: 9,774
Likes: 10
BellaOnline Editor
Iron Age Human
OP Offline
BellaOnline Editor
Iron Age Human
Joined: May 2010
Posts: 9,774
Likes: 10

Alpha Centauri AB and Proxima Centauri.

Image Credit: ESO/B. Tafreshi (twanight.org)/Digitized Sky Survey 2
Acknowledgement: Davide De Martin/Mahdi Zamani
Universe Today


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy
Joined: May 2010
Posts: 9,774
Likes: 10
BellaOnline Editor
Iron Age Human
OP Offline
BellaOnline Editor
Iron Age Human
Joined: May 2010
Posts: 9,774
Likes: 10

Planetary Landscapes writes:
Quote

The View from Alpha Centauri | Growing up in the late 1960s and 1970s, I was an avid viewer of science fiction on television. Naturally, the programs I watched included the classic series Lost in Space where I learned the name of the first star I knew other than the Sun – Alpha Centauri (also written as α Centauri) which was the destination of the Robinson family flying on board the Jupiter 2. As a young budding astronomer in the early 1970s, I learned that α Centauri was the closest star system to the Sun and appeared as the third brightest star in our nighttime sky with a V magnitude, mV, of -0.27 (unfortunately, I could not see it from my home in New England).


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy

Moderated by  Mona - Astronomy 

Link Copied to Clipboard
Brand New Posts
Inspiration Quote
by Angie - 07/25/21 11:16 AM
2021: On this day . . .
by Mona - Astronomy - 07/25/21 06:29 AM
Biggest in the Solar System - facts for Kids
by Mona - Astronomy - 07/24/21 12:08 PM
Psalm for the day
by Angie - 07/22/21 07:58 AM
Basic Hand Stitches
by Cheryl - Sewing Editor - 07/21/21 04:10 PM
Astro Women - Birthdays
by Mona - Astronomy - 07/21/21 03:48 PM
Hot Jupiters - New article
by Mona - Astronomy - 07/19/21 09:54 AM
Director Julia Ducournau Wins Top Prize at Cannes
by Angela - Drama Movies - 07/18/21 03:50 PM
Sewing Denim
by Cheryl - Sewing Editor - 07/14/21 04:32 PM
Look up - what's in the sky?
by Mona - Astronomy - 07/08/21 06:48 AM
Sponsor
Safety
We take forum safety very seriously here at BellaOnline. Please be sure to read through our Forum Guidelines. Let us know if you have any questions or comments!
Privacy
This forum uses cookies to ensure smooth navigation from page to page of a thread. If you choose to register and provide your email, that email is solely used to get your password to you and updates on any topics you choose to watch. Nothing else. Ask with any questions!


| About BellaOnline | Privacy Policy | Advertising | Become an Editor |
Website copyright © 2021 Minerva WebWorks LLC. All rights reserved.


Powered by UBB.threads™ PHP Forum Software 7.7.5