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From: grl@charm.UUCP (George Lake)
Newsgroups: net.astro
Subject: Re: StarDate: October 12 The Halo of the Milky Way
Message-ID: <771@charm.UUCP>
Date: Wed, 23-Oct-85 16:55:04 EDT
Article-I.D.: charm.771
Posted: Wed Oct 23 16:55:04 1985
Date-Received: Fri, 25-Oct-85 01:47:16 EDT
References: <38@utastro.UUCP> <2140@brl-tgr.ARPA>, <50@utastro.UUCP>
Organization: Physics Research @ AT&T Bell Labs Murray Hill NJ
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Part of the confusion is that the word halo does double duty.
Some astronomers use the word to talk about the tenous outer
reaches of the "bulge", which is the lump you see in the center
of most spiral galaxies.   In this sense "halo" means the oldest
stars that you see far from the center.
"Halo" is also the massive dark halo.  Stardate refered to one
usage, Mike Disney to the other.