From: LARRY KLAES (ljk4_at_msn.com)
Date: Mon Apr 28 2003 - 07:20:43 PDT
----- Original Message -----
From: aavso_at_aavso.org
Sent: Monday, April 28, 2003 10:12 AM
To: aavso_at_aavso.org
Subject: AAVSO News Flash #1150
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
Tel. 617-354-0484 Fax 617-354-0665
http://www.aavso.org
* * * AAVSO NEWS FLASH * * *
Subject: 1833-33 NOVA SAGITTARII 2003 No. 1150
April 27, 2003
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1833-33 NOVA SAGITTARII 2003
We have been informed by the Central Bureau for Astronomical Telegrams (IAU
Circular 8123) that a nova in Sagittarius has been discovered
independently by Nicolas J. Brown, Quinns Rocks, W. Australia, on April
25.73 UT at magnitude 8.9 (T-Max 400 film), and by Minoru Yamamoto, Doi-machi,
Okazaki, Japan, on April 26.735 UT at photographic magnitude 9.6.
R. Kushida, Yatsugatake South Base Observatory, Japan, obtained an exposure
on Apr. 27.677 UT and found the nova to be magnitude 9.3 CCD; Y. Kushida
measured the exposure and finds the following precise position for the
object:
R.A.= 18h 40m 02.54s Decl. = -33o 26' 55.1" (2000.0) (IAU Circular 8123)
This object is located very close to the Mira variable V2377 Sgr. However,
there is no question that the object is a nova and not the Mira variable:
V2377 Sgr appeared at CCD magnitude 11.3 on Kushida's exposure at
R.A. = 18h 40m 00.73s Decl. = -33o 27' 49.6" (2000.0) (IAU Circular 8123).
Spectroscopy by L. Skuljan, University of Canterbury, New Zealand, obtained
around April 27.67 UT indicates the object to be a nova (IAU Circular 8123).
Additional information on N Sgr 03 may be found in IAU Circular 8123.
An AAVSO chart will be issued shortly. A CCDRc image showing the location
of the nova and obtained on April 27.46 UT by Douglas West, Mulvane, KS,
has been posted by him at the URL
http://members.aol.com/dwest61506/page70.html.
We have received the following magnitude estimates of 1833-33 N SGR 03:
UT Mag. Initials
APR 27.46 9.65V +/-0.06 WDJ
APR 27.46 8.90Rc +/-0.06 WDJ
APR 27.531 9.0 SRX
APR 28.1 9.0 SQH
We congratulate Nicolas Brown and Minoru Yamamoto on their independent
discoveries!
We thank the following observers for the data that they have provided
for this News Flash:
SQH - R. SHIDA, BRAZIL
SRX - R. STUBBINGS, AUSTRALIA
WDJ - D. WEST, USA
Please monitor this bright nova closely and phone-in, fax, or e-mail
your observations to the AAVSO.
Good observing!
Elizabeth O. Waagen, Senior Technical Assistant
on behalf of
Janet A. Mattei, Director
____________________________________________________________________________
Symbols include:
CCDV = Charge-coupled device with (V) filter
CCDRc = Charge-coupled device with (Rc) filter
If you would like to contribute to AAVSO NEWS FLASH, please send
observations of unusual variable star activity to:
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may do so by visiting the following web page:
If you would like data from the AAVSO International Database for
research purposes, please send your request to:
Janet Mattei, AAVSO Director, at aavso_at_aavso.org
An archive of past issues of the News Flash is available
at the following web page:
http://www.aavso.org/newsflash/
We look forward to including your observations in future editions
of AAVSO NEWS FLASH!
____________________________________________________________________________
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