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IAUC 6758: CATACLYSMIC Var IN Aur; N LMC 1997; C/1997 T1

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                                                 Circular No. 6758
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)


CATACLYSMIC VARIABLE IN AURIGA
    Y.-l. Qiu, Q.-y. Qiao, W.-d. Li, and J.-y. Hu, Beijing
Astronomical Observatory (BAO); and A. Esamdin, Urumqi Astronomical
Station, report their discovery, in the course of BAO supernova
survey, of a new cataclysmic variable star at R.A. = 7h27m52s.20,
Decl. = +40o46'55".5 (equinox 2000.0).  Estimated R magnitudes
obtained with 0.60-m telescope at Xinglong station:  Oct. 10 UT,
[18.5; 19.82, 15.7; 20.77, 15.9.  The original Palomar Sky Survey
plate shows no object at the position of this star.  A spectrogram
of the variable was obtained with the 2.16-m telescope at Xinglong
on Oct. 20.85.  The spectrum shows a very blue continuum with
absorption lines of H-delta, H-gamma, H-beta, and He I (468.6 nm).
H-beta and He I (468.6 nm) display weak emission in the absorption
core.  The spectrum is similar to that of the dwarf nova CY Lyr at
maximum.


NOVA IN THE LARGE MAGELLANIC CLOUD 1997
     W. Liller, Vina del Mar, Chile, reports that his films taken
on June 5.97 and 25.96 UT (limiting magnitude about 13.5) show no
evidence of the nova reported by the MACHO collaboration on IAUC
6756.


COMET C/1997 T1 (UTSUNOMIYA)
     Extension to ephemeris on IAUC 6753 (elements MPC 30738):

1997 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Oct. 19    19 45.59   +54 39.7   1.043   1.557   99.6   39.1   10.0
     24    19 23.66   +47 12.3   1.095   1.524   93.5   40.7   10.0
     29    19 10.12   +40 26.7   1.166   1.493   87.1   41.7   10.1
Nov.  3    19 01.45   +34 33.0   1.250   1.464   80.7   42.0   10.1
      8    18 55.77   +29 29.9   1.342   1.439   74.5   41.6   10.2
     13    18 52.02   +25 12.0   1.439   1.417   68.5   40.5   10.3
     18    18 49.57   +21 32.3   1.537   1.398   62.9   39.0   10.4
     23    18 48.03   +18 24.3   1.634   1.383   57.5   37.0   10.5
     28    18 47.14   +15 42.4   1.729   1.371   52.4   34.8   10.6
Dec.  3    18 46.71   +13 21.8   1.819   1.364   47.6   32.2   10.6
      8    18 46.62   +11 18.8   1.903   1.360   43.0   29.6   10.7
     13    18 46.77   + 9 30.3   1.980   1.361   38.8   27.0   10.8
     18    18 47.08   + 7 53.8   2.049   1.365   35.0   24.4   10.9

                      (C) Copyright 1997 CBAT
1997 October 21                (6758)            Daniel W. E. Green

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