(IAAC) Fwd: [WebbSoc] Possible Southern Supernova [SN Type II in NGC 4945 in Cen]
Lew Gramer
mameteors at yahoo.com
Mon Feb 14 12:33:27 EST 2005
Interesting news for our Southern observers: this should make
a fine target for most sizes of amateur scopes from dark skies.
Clear skies!
Lew Gramer
--- WebbSoc at topica.com wrote:
> To: WebbSoc at topica.com
> From: WebbSoc at topica.com
> Subject: Digest for WebbSoc at topica.com, issue 111
> Date: Mon, 14 Feb 2005 04:01:36 -0800
>
> -- Topica Digest --
>
> Possible Southern Supernova
> By carverr at newsltd.com.au
>
> Re: Possible Southern Supernova
> By Brian.Skiff at lowell.edu
>
> ------------------------------------------------------------
>
> Date: Mon, 14 Feb 2005 09:47:08 +1100
> From: "Carver, Rob" <carverr at newsltd.com.au>
> Subject: Possible Southern Supernova
>
> Hi everyone,
>
> There is a possible supernova in NGC 4945 (Centaurus). The galaxy is a
> large, nearby edge on spiral. It is bright and dusty with various magnitudes
> given between 8.5 and 9.5.
>
> This is from the AAVSO...
>
> Discovered By: C. Jacques and E. Pimentel Belo Horizonte, Brazil (IAU
> Circular 8482)
>
> Discovery Magnitude: CCD magnitude 12.8, images taken using a 0.30-m
> Schmidt-Cassegrain reflector during CEAMIG/REA supernovae search (IAU
> Circular 8482)
>
> Discovery Date: Feb. 8.22 and 10.23 UT (IAU Curcular 8482)
>
> Position: 407" west and 351" south of nucleus of NGC 4945 (IAU Circular
> 8482)
> R.A. = 13h 04m 44.06s (equinox 2000.0)
> Decl. = -49o 33' 59.8" (equinox 2000.0)
>
> Notes (from IAU Circular 8482):
>
> a. Nothing was visible at this position on a CCD image by Jacques on 2004
> June 20.93 UT (limiting magnitude 18.5) or on a 1976 red Digitized Sky
> Survey plate.
>
> b. The possible supernova lies in a quite rich area of foreground Milky Way
> stars in Centaurus.
>
> There is no AAVSO comparison chart prepared yet.
>
> Rob
>
>
> ------------------------------
>
> Date: Sun, 13 Feb 2005 15:51:35 -0700 (MST)
> From: Brian Skiff <Brian.Skiff at lowell.edu>
> Subject: Re: Possible Southern Supernova
>
>
>
> The NGC 4945 object has been spectroscopically confirmed as
> a supernova. It's a type II object, so won't get very bright, but
> on the other hand it shouldn't fade away quickly.
>
> \Brian
>
>
> ------------------------------
>
> End of WebbSoc at topica.com digest, issue 111
=====
Lew Gramer <dedalus at alum.mit.edu>
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