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RE: [APML] Fwd: V838 Light Echo Expansion
Alan, I just shot it last night. it is VERY bright and big. Easy to see in
a 1 second exposure with the 12.5". Im in the midst of processing it now.
Chris Schur
-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Alan Voetsch
Sent: Thursday, December 05, 2002 6:22 PM
To: oregonskywatchers@yahoogroups.com; APML
Subject: [APML] Fwd: V838 Light Echo Expansion
Hi all,
Al Kelly posted this earlier today on the SBIG users
group and I thought it was cool enough to forward.
Just click on his link, well, you might want to read
his description first.
Alan
--- Al Kelly <akelly@ghg.net> wrote:
> See http://www.ghg.net/akelly/v838anim.gif for an
> animated GIF of the
> expansion of the light echo from nova V838
> Monocerotis. This has all
> occurred since January and happens at apparent light
> speed, since it is
> primarily a reflection nebula that we will see
> temporarily with the bright
> light of the nova. It is fading rapidly. As far as
> I know, this is a
> fairly new type of phenomenon for us humans to
> notice (similar to the light
> echo from SN1987A).
>
> The "movie" comprises four color composite images I
> processed from data
> sets made by Arne Henden of the USNO in Flagstaff.
> These were made in
> January, May, September, and November, tracking V838
> from pre-expansion to
> current appearance.
>
> I think this object is way cool..:). I only know of
> Gregg Ruppel's fine
> LRGB composite in amateur circles. This was a month
> or two ago. Who else
> has imaged this object? I would enjoy seeing
> whatever is out there, while
> we wait for stunning HST images to hit the street.
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