Newsgroup: it.scienza.astronomia
Titolo: Superniva luminosa in M74

C'è una bella supernova luminosa da osservare la sera. Leggete qua:
SUPERNOVA 2002ap IN M74
     S. Nakano, Sumoto, Japan, reports the discovery by Yoji
Hirose, Chigasaki, Kanagawa-ken, of an apparent supernova (V =
14.5) on five unfiltered CCD frames (limiting mag 17) taken on Jan.
29.398-29.501 UT with a 0.25-m f/6.3 Schmidt-Cassegrain reflector.
Hirose reported the new object as being 274" west and 93" south of
the center of M74 (= NGC 628).  Nothing was visible at this
location on his CCD frames taken on Jan. 3.  R. Kushida,
Yatsugatake South Base Observatory, reports the following precise
position (measured by Y. Kushida) for SN 2002ap from an unfiltered
CCD image taken on Jan. 30.382, with the star at mag 13.7:  R.A. =
1h36m23s.85, Decl. = +15o45'13".2 (equinox 2000.0), or 258" west
and 108" south of the center of M74.  No star is visible at this
position on Kushida's survey frames taken from 1994 to 2001 Dec. 18
(limiting mag 17-18).  W. Li, University of California, reports
that an image taken with the Katzman Automatic Imaging Telescope
(KAIT) on Jan. 29.2 showed the new object at mag 14.4.  Li also
measured position end figures for SN 2002ap:  23s.87, 13".0.  A
KAIT image taken on Jan. 25.2 showed nothing at this position
(limiting mag about 18.0).
Buona supernova,
Roberto

E anche una, un tantino piu' luminosa... in seconda serata :)
SUPERNOVA 2002ao IN UGC 9299
     P. Martin and W. D. Li, University of California at Berkeley,
report the LOTOSS (cf. IAUC 7514) discovery of an apparent
supernova on an unfiltered CCD image taken with the 0.8-m Katzman
Automatic Imaging Telescope (KAIT) on Jan. 25.5 UT (mag about 14.3).
SN 2002ao is located at R.A. = 14h29m35s.74, Decl. = -0 00'55".8
(equinox 2000.0), which is about 16" east and 10" north of the
diffuse nucleus of UGC 9299.  The new object was confirmed at mag
14.7 in an image taken with the Beijing Astronomical Observatory
(BAO) 0.6-m telescope on Jan. 26.9 by Y. L. Qiu.  Images of the
same field taken with KAIT on 2001 June 28.3 (limiting mag about
19.0) and with the BAO 0.6-m on 2002 Jan. 4.9 (limiting mag about
17.8) showed nothing at this position.  D. West, Mulvane, KS, also
obtained confirming CCD images of SN 2002ao with a 0.2-m reflector,
yielding position end figures 35s.72, 56".5, and the following
magnitudes:  Jan. 27.492, R_c = 14.83; 27.507, V = 14.96.
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-- 
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* Gianluca Masi                           "Two things fill the soul   *
* Via Madonna de Loco, 47               with awe and reverence [...]: *
* 03023 Ceccano (FR)                     the starry sky above me and  *
* ITALY                                    the moral law within me"   *
* e-mail: 
gian...@fr.flashnet.it
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             I. Kant       *
* Minor Planet Center Obs. Code: 470 - Ceccano                        *
* Center for Backyard Astrophysics - Italy                            *
* VSNET Collaboration Team member                                     *
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