SN2010gv
SN2010gv
Вспышка сверхновой в безымянной галактике была открыта 10 августа 2010г. охотником на сверхновые Koichi Itagaki (Япония). В момент открытия блеск звезды оценивался 16.0m, тип - Ia. Сверхновая наблюдалась на дату открытия в Витебской Обсерватории, блеск звезды оценен 15.8m (CR).
Текст циркуляра об открытии:
POSSIBLE SUPERNOVA IN GALAXY IN DRACO > S. Nakano, Sumoto, Japan, reports the discovery by Koichi Itagaki > (Teppo-cho, Yamagata) of an apparent supernova (mag 16.4) on unfiltered > CCD frames (limiting magnitude 19.0) taken on Aug. 9.705 UT using a 0.60-m > f/5.7 reflector (+ Bitran BT-214E camera). The new object is located at > R.A. = 17h58m22s.56 +/- 0s.02, Decl. = +50o47'34".0 +/- 0".4 (equinox > 2000.0), near a small and faint galaxy. Toru Yusa (Osaki, Japan) reports > his confirming images (limiting mag 18-19) of the new object taken remotely > at the RAS Observatory near Mayhill, NM, U.S.A., on Aug. 10.148 and 10.169, > providing position end figures 22s.56 +/0 0s.01, 34".6 +/- 0".1. Additional > unfiltered CCD magnitudes for the variable, including pre-discovery images > found by Itagaki from his archive: 2008 Aug. 31.50, [19.5 (Itagaki); 2010 > Aug. 3.614, 17.5 (Itagaki); 6.576, 16.9 (Itagaki); 10.148, 16.0 (Yusa, > 0.30-m f/12 reflector + FLI IMG1024-DM camera); 10.169, 16.0 (Yusa, 0.25-m > f/3.4 reflector + SBIG ST-10XME camera); 10.446, 16.2 (Itagaki); 10.527, > 16.3 (Yusa, 0.30-m f/12 Cassegrain reflector + SBIG STL-1001E camera at > Osaki, Japan). Itagaki's pre- and discovery images of the new variable are > posted at website URL http://www.k-itagaki.jp/images/psn-anon-2.jpg. Also, > Yusa has posted an image of the variable at the following website URL: > http://www.palette.furukawa.miyagi.jp/space/images/PSN_100810.jpg. The > faint presumed host galaxy is SDSS J175822.33+504733.1. > Following posting on the Central Bureau's unconfirmed-objects webpage, > Vitali Nevski (Vitebsk, Belarus) writes that he obtained CCD images on Aug. > 10.880 with a 0.3-m reflector that yield magnitude 15.8 and position end > figures 22s.58, 34".7 (USNO-B1.0 catalogue) for the possible supernova, > adding that nothing is visible at this position on a Palomar Sky Survey > image obtained on 1993 Aug. 16 (via the Digitized Sky Survey; limiting red > mag 21). > > > NOTE: These 'Central Bureau Electronic Telegrams' are sometimes > superseded by text appearing later in the printed IAU Circulars. > > (C) Copyright 2010 CBAT > 2010 August 11 (CBET 2404) Daniel W. E. GreenСнимок галактики из архива DSS, в которой вспыхнула сверхновая:
