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IAUC 7606: COMET C/2001 G1; C/1996 L1, C/1997 M5; 2001aj

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IAUC number

                                                  Circular No. 7606
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

COMET C/2001 G1
     An apparently asteroidal object discovered on CCD images taken
with the LONEOS 0.59-m Schmidt telescope (discovery observation
given below) and posted on the NEO Confirmation Page has been found
by other astrometric observers to be cometary on their CCD images.
The object was reported as being diffuse by J. Ticha, M. Tichy, and
P. Jelinek at Klet (Apr. 1.9 and 2.9 UT; 9" coma on Apr. 2.9) and
by C. E. Lopez and M. R. Cesco at El Leoncito (Apr. 2.2), and as
having a 10" coma by M. Busch and S. Kluegl at Heppenheim, Germany
(Apr. 1.9) and by J. Broughton, Reedy Creek, Queensland (Apr. 2.5).
Additional astrometry and very uncertain parabolic orbital elements
are given on MPEC 2001-G03.

     2001 UT             R.A. (2000) Decl.        m2
     Apr.  1.19878   11 31 41.97   -21 01 28.7   17.4

COMETS C/1996 L1 AND C/1997 M5 (SOHO)
     Further to IAUC 7601, D. Biesecker reports his measurements
for two Kreutz sungrazing comets found on LASCO C2 coronagraph
images by X. Leprette at the SOHO website.  The reduced
observations and orbital elements by B. G. Marsden appear on MPEC

  Comet         Date      UT        R.A. (2000.0) Decl.
  C/1996 L1     1996 June 10.913     5 14.8     +21 22
  C/1997 M5     1997 June 19.725     5 49.0     +21 46

SUPERNOVA 2001aj IN UGC 10243
     D. Weisz and W. D. Li, University of California at Berkeley,
report the discovery by LOTOSS (cf. IAUC 7514) of an apparent
supernova (mag about 18.0) on an unfiltered CCD image taken on Mar.
30.5 UT (and confirmed at about the same brightness on an earlier
image taken on Mar. 10.5) with the 0.8-m Katzman Automatic Imaging
Telescope (KAIT).  SN 2001aj is located at R.A. = 16h10m30s.23,
Decl. = +19o57'01".2 (equinox 2000.0), which is 9".0 east and 13".5
south of the nucleus of UGC 10243.  A KAIT image taken on 2000 Aug.
19.3 showed nothing at this position (limiting mag about 19.0).  V.
Pozzoli, Bareggio, Italy, reports an independent discovery of SN
2001aj at mag 18.1 on an unfiltered CCD image taken on Apr. 1.066,
adding that nothing is present at this location on Digital Sky
Survey images.

                      (C) Copyright 2001 CBAT
2001 April 2                   (7606)            Daniel W. E. Green

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