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IAUC 6996: C/1998 Q1; 1998do, 1998dp

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                                                 Circular No. 6996
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
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET C/1998 Q1 (LINEAR)
     Preliminary parabolic orbital elements by the undersigned from
23 observations, Aug. 24-25:

     T = 1998 June 28.131 TT          Peri. = 133.338
                                      Node  = 159.831   2000.0
     q = 1.56032 AU                   Incl. =  32.021

1998 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Aug. 15    22 05.22   + 7 34.7   0.712   1.692  157.2   13.4   15.5
     20    22 07.35   + 3 39.1   0.725   1.719  163.5    9.6   15.7
     25    22 09.29   - 0 13.6   0.745   1.748  169.3    6.2   15.8
     30    22 11.14   - 3 56.3   0.773   1.779  172.5    4.2   15.9
Sept. 4    22 13.03   - 7 23.5   0.810   1.812  170.6    5.2   16.1
      9    22 15.04   -10 31.1   0.854   1.847  165.7    7.7   16.3
     14    22 17.24   -13 17.0   0.905   1.883  160.2   10.4   16.5
     19    22 19.67   -15 40.5   0.963   1.920  154.7   12.9   16.8
     24    22 22.40   -17 42.1   1.027   1.959  149.4   15.1   17.0


SUPERNOVAE 1998do AND 1998dp
     L. Germany reports that the Mount Stromlo Abell Cluster
Supernova Search Team (cf. IAUC 6639) has discovered two apparent
supernovae on V and R CCD images taken by A. Graham with the Mount
Stromlo 1.27-m telescope (+ Macho Camera), as follows:

SN       Date UT      R.A. (2000.0) Decl.      V         Offset
1998do   Aug.  1    1 14 30.92  + 0 28 13.0   19.0   0".2 E, 0".4 N
1998dp   Aug. 14   21 58 28.12  -19 58 05.9   20.3   0".6 N

The limiting V magnitudes for the observations were V about 19.5
and 20.5 on Aug. 1 and 14, respectively.  Confirmation images were
taken by A. Graham with the same telescope on Aug. 22 (limiting mag
V about 20.5).  SNe 1998do and 1998dp were not visible on images
taken on 1997 Dec. 4 (limiting mag V about 19.5) and on 1998 June 8
(limiting mag V about 20.5), respectively.  SN 1998do is near Abell
168, and SN 1998dp is near Abell 2401.

                      (C) Copyright 1998 CBAT
1998 August 25                 (6996)            Daniel W. E. Green

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