(IAAC) Bright supernova in NGC 6946 in Cepheus/Cygnus

[Wouter van Reeven]

Hi Lew,


Sorry, one correction here. NGC 6946 is 40' SE of NGC 6939.


Greets, Wouter

On  0, "Lewis J. Gramer" <lgramer at upstream.net> wrote:
> These two messages appeared on [amastro] yesterday. NGC 6946, by the
> way, is that lovely little spiral on the Cygnus/Cepheus border, that
> is also RIGHT NEXT to (40' NE of) a pretty open cluster, NGC 6939...
> 
> So that's three fine sights in one field, for modest amateur scopes!
> 
> Clear skies and happy SN hunting,
> Lew
> 
> 
> ________________________________________________________________________
>    Date: Wed, 29 Sep 2004 11:42:17 -0700 (MST)
>    From: Brian Skiff <brian.skiff at lowell.edu>
> Subject: Bright supernova in NGC 6946
> 
>      The _nth_ supernova in NGC 6946 has been discovered.  The position
> is given as:  20 35 25.4 +60 07 18 (J2000), and magnitude 13.  The location
> is on the east side of the galaxy.  A chart prepared by Reinder Bouma
> is posted here:  http://www.shopplaza.nl/astro/vs-charts/sn2004et.htm
> 
> \Brian
> 
> ________________________________________________________________________
> 
> Message: 2
>    Date: Wed, 29 Sep 2004 21:00:35 +0200
>    From: Mikkel Steine <mikkel at messier45.com>
> Subject: Re: Bright supernova in NGC 6946
> 
> On Wednesday 29 September 2004 20:42, Brian Skiff wrote:
> >      The _nth_ supernova in NGC 6946 has been discovered.  The position
> > is given as:  20 35 25.4 +60 07 18 (J2000), and magnitude 13.  The location
> > is on the east side of the galaxy.  A chart prepared by Reinder Bouma
> > is posted here:  http://www.shopplaza.nl/astro/vs-charts/sn2004et.htm
> 
> According to vsnet it's the eighth supernova in NGC 6949:
> 
> [vsnet-alert 8328] SN 2004et in NGC 6946 (mag 12.8, CBET 95)
> SN2004et  20040927.0  128C  SMr
> 
> # SN 2004et (20:35:25.4, +60:07:17.6 (J2000.0), offset about 250"E and
> # 120"S) is hosted by NGC 6946, a quite nearby (5.1Mpc) face-on spiral
> # (SAB(rs)cd) galaxy in the northern part of the constellation Cygnus.
> # NGC 6946 is one of the most SN productive galaxies (SNe 1917A,
> # 1939C, 1948B, 1968D, 1969P, 1980K and 2002hh), then SN 2004et is the
> # eighth SN in one galaxy (new record!).  The Asiago team took a
> # high-resolution spectrum on Sept. 28, which suggests that it is a
> # young type II SN, affected some reddening by both in our Galaxy and
> # in NGC 6946; total amount of E(B-V) is estimated as 0.41 mag.  The
> # discovery magnitude is consistent with the expected maximum for
> # typical SN II.  Further observations are strongly encouraged.
> 
> I've made a plot from Guide here:
> 
> http://messier45.com/images/sn2004et.gif
> 
> I'm going out just this minute to observe it.
> 
> --
> Vennlig hilsen,
> Mikkel Steine
> ___________________________________________
> mikkel at messier45.com - http://Messier45.com
> What to observe next?
> 
> 
> 
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-- 

Black holes are where God is dividing by zero.