Re: [APML] 47 Tucanae

["Daniel Reyna" <dreyna14@earthlink.net>]

By the way Matt, try that using your shot of SMC.

Daniel

----- Original Message -----
From: "Matt BenDaniel" <matt@starmatt.com>
To: <astro-photo@seds.org>
Sent: Tuesday, April 30, 2002 11:19 PM
Subject: Re: [APML] 47 Tucanae


> At 11:10 PM 4/30/2002 -0700, Daniel Reyna wrote:
> >Great resolution but this one also looks a bit magenta/red.
>
> Last year I asked Prof. Stephen Zepf (co-author of a book I read entitled
Globular Cluster Systems) about the color of globular clusters.
>
> Globular clusters are very old. Their remaining main sequence stars are
smaller than our sun and redder. Some of the stars have neared end of life
and have turned into red giants. This means that globulars should be
slightly reddish overall.
>
> The core of a globular cluster is also thought to have "stripped cores"
from gravitational interactions. These are hot and blue. So the core is a
bit blue.
>
> >The color seems
> >to take abway the difference in the hues of the stars.
>
> I'll take a closer look at that.
> --
> Matt BenDaniel
> matt@starmatt.com
> http://starmatt.com
>
>
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