Central Bureau for Astronomical Telegrams
IAUC 7635: SNe; P/2001 J1
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Circular No. 7635
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)
SUPERNOVAE
B. E. Schaefer, University of Texas at Austin, on behalf of
the QUEST collaboration (cf. IAUC 7387), reports on the discovery
of eleven apparent supernovae discovered with the QUEST 16-CCD
array camera on the Centro de Investigaciones de Astronomia 1-m
Schmidt telescope at Llano del Hato, Venezuela. The total area
searched was 264 deg**2 between Mar. 25 and Apr. 1 to R = 20.8, with
each clear night receiving independent drift scans through B, V,
and R filters. Nightly scans continued until Apr. 4, so that the
eleven objects all have well-sampled 3-color light curves over
roughly three weeks. Each supernova was found by subtraction of
QUEST reference images, and each new object has been confirmed via
six or more independent images taken on three or more nights with
subtractions from three independent reference images.
SN 2001 UT R.A. (2000.0) Decl. R Offset
2001bu Mar. 25 10 45 22.19 - 1 28 44.5 19.4 0" E, 0" N
2001bv Mar. 25 13 58 09.11 - 1 51 40.9 19.9 0" E, 2" S
2001bw Mar. 25 14 01 05.50 - 1 08 26.0 19.8 4" E, 4" N
2001bx Mar. 25 14 54 05.62 - 1 42 04.1 20.0 1" W, 3" N
2001by Mar. 25 15 25 52.96 - 2 10 28.7 20.3 0" E, 0" N
2001bz Mar. 25 15 30 13.76 - 0 09 26.0 20.7 2" W, 0" N
2001ca Mar. 25 15 35 41.15 - 0 16 21.6 19.4 0" E, 0" N
2001cb Mar. 25 15 38 44.08 - 0 22 56.6 20.5 0" E, 0" N
2001cc Mar. 25 15 44 13.61 - 1 53 15.5 20.0 0" E, 1" S
2001cd Mar. 25 15 46 38.83 - 0 23 09.2 19.9 1" W, 1" N
2001ce Mar. 25 16 39 28.49 - 1 27 17.9 17.9 0" E, 0" N
COMET P/2001 J1 (NEAT)
As hinted on IAUC 7625, this is a short-period comet, and
observations by C. W. Hergenrother, T. B. Spahr, and M. Nelson with
the 1.8-m f/1 VATT Lennon telescope on May 27 make it clear that
the orbital period is $P$ about 7.5-7.9 years. Spahr has also
identified the comet with a very faint object (not described as
cometary) discovered by A. E. Gleason with the Spacewatch telescope
on 2000 Oct. 7 and placed on The NEO Confirmation Page but removed
on Oct. 20 for lack of follow-up. The additional astrometry and
orbital elements ($P$ = 7.64 yr) are given on MPEC 2001-K43. S.
Nakano has noted some rough similarity to the orbit of comet
3D/Biela.
(C) Copyright 2001 CBAT
2001 May 29 (7635) Daniel W. E. Green
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