Re: (IAAC) Markarian 205 - 8inch F/10

To: Internet Amateur Astronomers Catalog - Discussion <netastrocatalog-announce@latrade.com>
Subject: Re: (IAAC) Markarian 205 - 8inch F/10
From: Lew Gramer <dedalus>
Date: Tue, 09 Jun 98 09:38:02 -0400
Cc: Brian Skiff <bas@lowell.edu>, Lew Gramer (me) <dedalus>
In-Reply-To: Your message of "Tue, 09 Jun 98 11:11:07 +0200." <l03020701b1a2a6891697@[134.157.81.151]>
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Yann wrote:
> I think that visual observing of the deep sky should be useful with
> filters, not only interferometric ones (OIII, Hbeta) but colour ones too.

This reminds me of a fascinating article I read once (probably in an old copy of "Deep Sky", but maybe in one of the Webb Society journals): it described the enhancement of visual contast in certain low-surface brightness dwarf galaxies using a high transmission ("bright") red filter. I forget the astrophysical rationale for trying this approach, but I do remember that the author was partially pleased with their results.

Anybody tried this, or heard anything about it?

References:

Re: (IAAC) Markarian 205 - 8inch F/10

From: Yann Pothier <ypothier@closun.snv.jussieu.fr>