2009CBET.1707....1C

Query : 2009CBET.1707....1C

2009CBET.1707....1C - Central Bureau Electronic Telegrams, 1707, 1 (2009/February-0)

Supernova 2009an in NGC 4332.

CORTINI G. and ANTONELLINI S.

Abstract (from CDS):

Giancarlo Cortini and Stefano Antonellini, Predappio, Italy, report the discovery of an apparent supernova (mag about 15.4) on several unfiltered CCD images (limiting mag about 18.5) taken on Feb. 27.93 UT in the course of their supernova-search program with a 35-cm telescope at Monte Maggiore Observatory. The new object is located at R.A. = 12:22:47.4, Decl. = +65:51:04.5 (equinox 2000.0), which is 1" east and 33" north of the center of the galaxy NGC 4332. Nothing is visible at this position on their image of the same field taken on 2008 Oct. 5.91 (limiting mag about 18.5) or on Palomar Sky Survey red and blue plates.

Following posting on the Central Bureau's unconfirmed-objects webpage, Petri Kehusmaa (Hyvinkaa, Finland) reported an independent discovery of 2009an at mag 15.6 by Mikko Paivinen (Rajamaki, Finland) and himself on a 100-s unfiltered image (limiting mag 19.7) taken by Paivinen with a 28-cm Schmidt-Cassegrain reflector (+ SBIG ST-2000 CCD camera) in the course of their supernova-search program on Feb. 26.06 UT, with a confirming image taken by Paivinen on Feb. 28.06 that yields mag 15.2 for the new object (USNO-A2.0 red magnitudes used for comparison stars); Kehusmaa measured position end figures 47s.47, 04".6 (offset about 25" north of the center of NGC 4332), adding that nothing is visible at this position on their image from Jan. 17.13 (limiting mag 20.2) or on Digital Sky Survey red or infrared plates.


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Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 2009an SN* 12 22 47.40 +65 51 04.0           SNIa-norm 53 1

Query : 2009CBET.1707....1C

Basic data :
SN 2009an -- SuperNova
Other object types: otypes_help 		SN* (2012A&A,SN)
ICRS coord. (ep=J2000) : 		12 22 47.40 +65 51 04.0 (Optical) [ ] C 2015ApJS..220....9F
FK4 coord. (ep=B1950 eq=1950) : 		12 20 27.78 +66 07 41.5 [ ]
Gal coord. (ep=J2000) : 		127.58255 +51.01767 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 2677 [~] / z(spectroscopic) 0.00896900 [~] / cz 2688.8386 [~]
   (Opt) D 2020ApJ...902...14S
Spectral type: 		SNIa-norm C 2020MNRAS.492.4325S
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SN 2009an

References (53 between 1850 and 2026) (Total 53)
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