Central Bureau for Astronomical Telegrams
IAUC 7712: 2001eg; 2001eh; V2275 Cyg
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 7713
.dvi or
.ps format.
Circular No. 7712
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
SUPERNOVA 2001eg IN UGC 3885
G. M. Hurst, Basingstoke, England, reports the discovery by M.
Armstrong (Rolvenden, England) of an apparent supernova (mag 17.8)
on an unfiltered CCD image (limiting mag 19) taken on Aug. 29.138
UT in the course of the U.K. Nova/Supernova Patrol with a 0.36-m
Schmidt-Cassegrain telescope. The discovery image yields the
following position for the new object: R.A. = 7h31m05s.91, Decl. =
+59o28'38".8 (equinox 2000.0), which is 7" west and 13" south of
the center of UGC 3885. A CCD image taken by Armstrong on 2000
Dec. 21 shows no object at this location to limiting mag 19.5. An
image taken by T. Boles (Coddenham, England) on Sept. 1.05 seems to
show the new object, from which Armstrong provides the following
position end figures: 05s.95, 38".7. P. Meikle, Astrophysics Group,
Imperial College of Science, London, reports that two 600-s I-band
images (limiting mag 21.1) obtained by D. Pollacco with the 1.0-m
Jacobus Kapteyn Telescope at La Palma on Sept. 2.2 UT show SN
2001eg as a point source at mag 19.2 +/- 0.3 and located 6".8 west
and 16".0 south of the galaxy nucleus; Armstrong has measured the
position from these images and provides the following position end
figures: 05s.99, 38".3. Armstrong adds that an image that he
obtained on Sept. 5.14 shows the new object at mag 18.7.
SUPERNOVA 2001eh IN UGC 1162
Hurst also reports the discovery by Armstrong of another
apparent supernova (mag 16.5) on an unfiltered CCD image (limiting
mag 18.5, affected by slight trailing) taken on Sept. 9.119 UT as
above with a 0.30-m Schmidt-Cassegrain telescope; the new object
appeared at the same brightness on another image secured on Sept.
10.050. The following position for SN 2001eh is the average of
measures by Armstrong from his two images: R.A. = 1h38m12s.10,
Decl. = +41o39'18".8 (equinox 2000.0), which is 36" west and 6"
north of the center of UGC 1162. Nothing appears at this position
on an image taken by Armstrong on 2000 Sept. 25 (limiting mag 19.5),
and nothing is anything visible on Palomar Sky survey images taken
on 1991 Jan. 19 (blue, limiting mag 22.5), 1995 May 19 (infrared),
and 1998 Nov. 25 (red, limiting mag 20.8).
V2275 CYGNI
CCD photometry by G. Sostero and A. Lepardo, Udine, Italy:
Sept. 5.80 UT, V = 10.53, B-V = +0.9, V-R_c = +1.1, R_c-I_c = +0.9;
6.87, 10.60, +0.9, +1.0, +1.0; 9.82, 10.83, +0.9, +1.1, +0.8.
(C) Copyright 2001 CBAT
2001 September 10 (7712) Daniel W. E. Green
Read IAUC 7713
.dvi or
.ps format.
Our Web policy. Index to the CBAT/MPC/ICQ pages.
