[vsnet-alert 9244] Fw: AAVSO Special Notice #37: Possible Nova in
Cygnus
Wolfgang Renz
w_renz at onlinehome.de
Sat Mar 17 08:31:38 JST 2007
FYI
The possible nova is located between Deneb and gamma Cyg.
The closest AAVSO Charts with mags in the required range are:
- U Cyg a chart (closest comp west of Deneb):
http://www.aavso.org/charts/CYG/U_CYG/
- chi Cyg a chart (closest comp west of gamma Cyg):
http://www.aavso.org/charts/CYG/CHI_CYG/
- X Cyg aa chart (closest comp south east of gamma Cyg):
http://www.aavso.org/charts/CYG/X_CYG/
and especially:
- V1515 Cyg peliminary a chart (with comps in the range
5.5 - 7.8 mag close to the possible nova)
http://www.aavso.org/charts/CYG/V1515_CYG/
Clear skies
Wolfgang
--
Wolfgang Renz, Karlsruhe, Germany
Rz.BAV = WRe.vsnet = RWG.AAVSO
----- Original Message -----
From: <aavso at aavso.org>
To: <w_renz at onlinehome.de>
Sent: Friday, March 16, 2007 9:51 PM
Subject: AAVSO Special Notice #37: Possible Nova in Cygnus
> AAVSO Special Notice #37
> Possible Nova in Cygnus
> (March 16, 2007)
>
> A. Tago reports (CBET 890) the discovery of a possible
> nova from CCD exposures taken on March 15. The position,
> from Bisei Spaceguard Center images, is
> RA 20:28:12.52 DEC +41:48:36.5 J2000
> The brightness is about V=6.7, and the region has
> considerable nebulosity. We will be posting a VSP
> finding chart for this object in the next day or so;
> until then, estimate the brightness relative to nearby
> Tycho stars. Submit your observations as
> 9999+99 Nova Cyg 2007
>
> Arne Henden
----- Original Message -----
From: "Tim Crawford" <tcarchcape at yahoo.com>
To: <aavso-discussion at mira.aavso.org>
Cc: <aavso-photometry at aavso.org>
Sent: Friday, March 16, 2007 11:20 PM
Subject: [Aavso-photometry] RE N Cyg 2007 FOV with Tycho "V" mags
> If any one is interested I have a bmp image of this
> FOV made with Aladin showing two of the tycho "V" mags
> using Henden conversion formula (02/02)...
>
> Email if you want a copy.....use at your own risk, of
> course...
>
> Ad Astra
>
> Tim Crawford CTX
> Arch Cape Observatory
> http://homepage.mac.com/windwalker1/ACObserv.htm
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