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IAUC 7241: 1999dn; 1999dm; C/1999 N2

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                                                  Circular No. 7241
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVA 1999dn IN NGC 7714
     Y. L. Qiu, Q. Y. Qiao, and J. Y. Hu, Beijing Astronomical
Observatory (BAO), report their discovery, in the course of the BAO
Supernova Survey, of an apparent supernova (mag about 16.0) in NGC
7714.  SN 1999dn was discovered on two unfiltered CCD images taken
on Aug. 19.76 and 19.82 UT with the BAO 0.6-m telescope, and it was
confirmed on Aug. 20.65 with the BAO 0.60-m Schmidt telescope by X.
Zhou and Z. Zheng.  The new star is located at R.A. = 23h36m14s.70,
Decl. = +2 09'08".8, which is 9".9 east and 9".4 south of the
center of NGC 7714.  This is a bright foreground star near NGC
7714.  CCD frames taken on Aug. 10 (limiting mag about 18.0) show
no object at the position of the supernova.


SUPERNOVA 1999dm IN MCG +05-36-022
     Corrigenda.  On IAUC 7237, the position for the nucleus of the
host galaxy (MCG +05-36-022 = Abell 2065-164) of SN 1999dm was
provided, rather than the supernova's position.  Lee et al. provide
the supernova's position as R.A. = 15h22m28s.90, Decl. =
+27 42'58".0 (equinox 2000.0).  The reference on line 8 was
published in 1988, not 1998.  On line 11, for BAO reflector read
BOA reflector
     M. M. M. Santangelo and S. Donati, Monte Agliale, Italy,
report that their CCD patrol frames of the galaxy cluster Abell
2065 obtained on Mar. 24.09 and May 17.96 UT with the 0.51-m
reflector (limiting mag R about 20.0) show nothing new near the
host galaxy.


COMET C/1999 N2 (LYNN)
     Ephemeris from orbital elements on MPC 35208:

1999 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Aug. 10    12 22.90   +20 27.9   1.178   0.838   44.1   57.4    7.6
     15    12 32.38   +23 07.2   1.305   0.882   42.4   50.8    8.0
     20    12 40.06   +25 17.1   1.425   0.933   40.8   45.1    8.5
     25    12 46.58   +27 05.9   1.535   0.989   39.4   40.4    8.9
     30    12 52.37   +28 39.5   1.637   1.050   38.2   36.5    9.3
Sept. 4    12 57.73   +30 02.2   1.729   1.114   37.5   33.5    9.7
      9    13 02.84   +31 17.2   1.812   1.179   37.2   31.1   10.0
     14    13 07.85   +32 27.2   1.887   1.247   37.4   29.3   10.3
     19    13 12.82   +33 34.1   1.952   1.315   38.0   28.1   10.6

                      (C) Copyright 1999 CBAT
1999 August 20                 (7241)            Daniel W. E. Green

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