THE ASTRONOMER Electronic Circular No 559 1991 Sept 5 20.01UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP, England. Telephone: (0256)471074 Int:+44256471074
Telex: 9312111261 Answerback: TA G JANET BOXES:
GMH at UK.AC.CAM.ASTRONOMY.STARLINK or GUYH at UK.AC.SUSSEX.CLUSTER
TELECOM GOLD: 10074:MIK2885 PRESTEL 256471074
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SUPERNOVA 1991aq IN ANONYMOUS GALAXY
Rob McNaught reports his discovery of an apparent supernova on a
red plate taken by P. McKenzie with the U.K. Schmidt Telescope on
Aug.18.75 UT. The supernova, of mag about 18, is situated at R.A. =
1h 53m 44s.6, Decl. = -81 52'46".1 (1950.0, uncertainty 0".5 in
each coordinate), or 5".3 west and 10".6 south of the nucleus of an
anonymous spiral galaxy. No star appears in this position on the
SERC J, R and I and ESO B surveys. A field star of mag about 17 is
situated closer to the nucleus (4".4 west, 3".6 north) at end
figures 45s.0, 31".9.
IAUC 5331
COMET McNAUGHT-RUSSELL (1991v)
R. H. McNaught, Anglo-Australian Observatory, reports his discovery
of a comet on a 60-min R exposure by K. S. Russell with the U.K.
Schmidt on Aug. 30. Subsequently he also found it on an Aug. 3
plate, and altogether he has measured the following precise
positions:
1991 UT R.A. (1950) Decl. m1 Observer
Aug. 3.54744 20 20 34.25 -47 53 47.1 16.5 Hartley
3.59258 20 20 30.23 -47 54 24.0 "
30.43910 19 39 41.28 -52 47 13.7 17.5 Russell
30.48076 19 39 37.62 -52 47 33.0 "
Sept. 1.48731 19 36 53.62 -53 02 05.2 16.5 "
M. Hartley (Siding Spring). Very strong condensation 1" across;
tail 1'.5 long in p.a. 0 deg.
K. S. Russell (Siding Spring). Aug. 30: strong condensation 3"
across; tail 0'.5 long in p.a. 20 deg. Sept. 1: excellent dense
image on 4415 film; tail 1'.0 in p.a. 25 deg.
Parabolic orbital elements from the above observations:
T = 1992 Apr. 24.445 ET Peri. = 253.599
Node = 120.155 1950.0
q = 3.32276 AU Incl. = 91.576
1991 ET R.A. (1950) Decl. Delta r m1
Sept. 1 19 37.55 -52 58.6 3.342 3.982 16.6
11 19 25.25 -53 59.4
21 19 15.81 -54 42.5 3.528 3.885 16.6
Oct. 1 19 09.57 -55 13.4
11 19 06.63 -55 36.8 3.742 3.794 16.7
IAUC 5333
V795 CYGNI (Q1991/80)
Patrick Schmeer, Germany, reports an outburst of this recurrent
object located at: RA 19h 32m 38s DEC +31 25.6' (1950).
Confirmation has been obtained by Gary Poyner (Birmingham):
1991 Sept 2.875UT, [14.2 (Schmeer); 3.894, 13.1 (Schmeer);
4.877, 13.3 (Schmeer); 4.92, 13.5: (Poyner).
The previous outburst of 1990 April was announced on E404.
FN ANDROMEDAE (Q1991/81)
Timo Kinnunen, Finland reports an outburst of this recurrent
object located at: RA 01h 09m 18s DEC +34 59' (1950). On
1991 Sept 4.955UT he estimated it at magnitude 13.0. Patrick
Schmeer has subsequently reported estimates:
1991 Sept 3.997UT, [14.3; 4.976, 13.4.
Details of the previous outburst of 1990 Sept appeared on E446.
Guy M Hurst