Science

Fantastic Anarchist

(7,309 posts)

14. Right, but why are there discrepancies in the list?

Thu Feb 21, 2013, 01:38 PM

Feb 2013

I'm just interested in knowing.

A. Centauri A is a sun-like star, correct? And P. Centauri is a red dwarf. Is that the criteria for determining which is closer? If so, I don't understand the logic. Both are stars. If P. Centauri is closer to earth during its orbiting period, it should be listed first in all lists.

Does P. Centauri revolve around the other two, or just A. Centauri A?

On edit: I could be wrong, but isn't Proxima Centauri about a light-month closer to earth than the other two stars?

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18 replies

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Highlight:

Bright New Supernova Shines in Southern Skies [View all] n2doc Feb 2013 OP

k and r--thank you for posting this niyad Feb 2013 #1

The northern hemisphere bias. longship Feb 2013 #2

Just saw a PBS documentary on ALMA. Here's a trailer >>>> Roland99 Feb 2013 #5

I thought Proxima Centauri was the closest star (other than the sun) Fantastic Anarchist Feb 2013 #12

Proxima Centauri is closest by a little. longship Feb 2013 #13

Right, but why are there discrepancies in the list? Fantastic Anarchist Feb 2013 #14

Proxima is a weird one. longship Feb 2013 #15

Thanks, I'll read that. Fantastic Anarchist Feb 2013 #16

What a great idea. JimDandy Feb 2013 #3

Still wanna see this.... Spitfire of ATJ Feb 2013 #4

You just might... friendly_iconoclast Feb 2013 #6

Close enough to see during daylight. longship Feb 2013 #7

For all we know it already blew 600 years ago.... Spitfire of ATJ Feb 2013 #8

Don't wanna' see this... nikto Feb 2013 #9

I guess it's a matter of perspective... Spitfire of ATJ Feb 2013 #10

As long as there's no Alien GOP... nikto Feb 2013 #11

Someone way out there had a bad morning. Ready4Change Feb 2013 #17

Our sun becomes a red giant eventually. RILib Feb 2013 #18