Re: How many stars in M87?

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1 total messages Started by Dirk Valk Thu, 03 Sep 1992 16:54

Author: Dirk Valk
Date: Thu, 03 Sep 1992 16:54

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Rune.Johansen@nta.no (Rune Henning Johansen FBA) writes:
> So my > question is simply: How many stars is there in M87?

According to K. Lang's Astrophysical Formulae_, the galaxy M87 (NGC 4486)
has a total mass of 2.1e12 Mo -- 2 trillion solar masses.  The mass of a
galaxy will be divided into some portion of stellar mass, and some portion
of gas-and-dust mass, but this number basically says that there are 'on the
order of a trillion' stars in M87.

-- 
: Dirk Valk             | In order for evil to triumph, it is sufficient 
: Rice University       | that good men do nothing.  
: dirk@spacsun.rice.edu |
: Space Physics & Astro.| 		DEFEND YOUR RIGHTS

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