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IAUC 5920: 1994a; N Cas 1993

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                                                  Circular No. 5920
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


COMET KUSHIDA (1994a)
     Ephemeris from the orbital elements on IAUC 5919:

1994 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Jan.  8     9 45.38   + 3 20.0   0.553   1.448  139.2   26.4   10.8
     13     9 47.97   + 2 30.7   0.564   1.474  143.1   23.6   10.9
     18     9 49.38   + 1 54.2   0.578   1.503  147.3   20.7   11.1
     23     9 49.80   + 1 29.9   0.596   1.535  151.7   17.7   11.2
     28     9 49.47   + 1 16.8   0.617   1.569  156.1   14.7   11.4
Feb.  2     9 48.59   + 1 13.7   0.642   1.606  160.5   11.8   11.6
      7     9 47.38   + 1 18.9   0.672   1.644  164.6    9.2   11.8
     12     9 46.07   + 1 30.8   0.707   1.684  167.7    7.2   12.0
     17     9 44.86   + 1 47.5   0.746   1.726  168.9    6.3   12.2

     Total visual magnitude estimate by R. Keen, Mt. Thorodin, CO
(0.32-m reflector):  Jan. 11.31 UT, 10.7 (2'.5 coma).


NOVA CASSIOPEIAE 1993
     R. W. Argyle and L. V. Morrison, Royal Greenwich Observatory,
report an accurate position for N Cas 1993 obtained by D. W. Evans
with the Carlsberg Automatic Meridian Circle on La Palma:  R.A. =
23h41m47s.228 +/- 0s.021, Decl. = +57o31'00".76 +/- 0".16 (equinox
J2000.0, FK5 reference frame; epoch 1993.96).  The corresponding
1950.0 position is R.A. = 23h39m22s.283, Decl. = +57o14'22".55.
The V magnitude was 6.12 (Dec. 16.75 UT).  Only one observation was
possible before the object passed into evening twilight.
     Further photoelectric photometry: 1993 Dec. 30.75 UT, V = 7.08
+/- 0.02 (H. Mikuz, Ljubljana, Slovenia; cf. IAUC 5914); 1994 Jan.
3.832, V = 7.16 +/- 0.03, B-V = +0.43 +/- 0.03, U-B = -0.64 +/-
0.03 (D. Hanzl, N. Copernicus Observatory and Planetarium, Brno);
Jan. 5.700, V = 7.19 +/- 0.02, B-V = +0.34 +/- 0.02 (Hanzl;
comparison star SAO 35665, V = 7.24, B-V = +0.17).
     Further visual magnitude estimates (cf. IAUC 5912):  Jan. 6.05
UT, 7.1 (W. G. Dillon, Missouri City, TX); 6.11, 7.3 (C. E. Spratt,
Victoria, BC); 8.88, 7.0 (S. Meister, Bulach, Switzerland); 9.17,
7.3 (A. Hale, near Orogrande, NM); 10.23, 7.1 (Spratt).


1994 January 11                (5920)            Daniel W. E. Green

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