Far Centaurus - sci.astro.amateur

Message from discussion Far Centaurus

Jay Reynolds Freeman

More options Jan 31 1997, 3:00 am

Newsgroups: sci.astro.amateur

From: free...@netcom.com (Jay Reynolds Freeman)

Date: 1997/01/31

Subject: Re: Far Centaurus

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> free...@netcom.com (Jay Reynolds Freeman) wrote:

> > M45 -- The Merope Nebula is not hard in decent sky, but it is always
> > tough to decide whether any other fuzz I see is dew on the optics,
> > or scattering in the air or eye, or really nebula.
> Move several degrees. If it was dew or high cloud all other field
> stars in the general vicinity would also show fuzz. But they usually
> don't, and you know >that you have seen it.

The trouble is, they always all show some adjacent glow, for one of
the reasons I cited or another, even on a clear, dry night. One needs
a differential measurement of how much is present, or a pattern of
glow that is non-symmetric about the star(s) in question; the latter
is one reason why the Merope nebula is easier than the rest of the
Pleiades nebulosity.

Jay Reynolds Freeman -- free...@netcom.com -- I speak only for myself.

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