- #1
dalai_lala
- 1
- 0
Ummm... never mind, we found it...
Given Proxima Centauri with parallax angle of 0.769" and apparent bolometric magnitude of 11.1... what is its absolute magnitude?
I get that I should use m-M = 5 log10(d/10 pc) and I understand that d = 1/p".
What I really need to know is: what do I use to get apparent magnitude? After I get m I can plug and chug, and I'm fine with that... but how do I get m?
Apparent magnitude was not given and I can't look it up for a quiz or test.
so far...
m-M = 5 log10 [(1/0.769)/10]
or M = m - 5 log10 (.1300)
But I'm still stuck on where to go for m...
Thanks!
Lori the Totally Lost English Major
Homework Statement
Given Proxima Centauri with parallax angle of 0.769" and apparent bolometric magnitude of 11.1... what is its absolute magnitude?
Homework Equations
I get that I should use m-M = 5 log10(d/10 pc) and I understand that d = 1/p".
What I really need to know is: what do I use to get apparent magnitude? After I get m I can plug and chug, and I'm fine with that... but how do I get m?
Apparent magnitude was not given and I can't look it up for a quiz or test.
The Attempt at a Solution
so far...
m-M = 5 log10 [(1/0.769)/10]
or M = m - 5 log10 (.1300)
But I'm still stuck on where to go for m...
Thanks!
Lori the Totally Lost English Major
Last edited: