THE ASTRONOMER Electronic Circular No 539 1991 July 10 20.21UT
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 1991aj IN MCG +07-34-84
C. Pollas, Observatoire de la Cote d'Azur, reports his discovery of
a mag 18.0 supernova located at R.A. = 16h28m06s.24,
Decl.= +41 53'10".6 (equinox 1950.0) in MCG +07-34-84. The
discovery was made on Kodak technical pan films obtained with the
0.9-m Schmidt on July 3.98 and 6.93 UT. The position of the
nucleus of the mag 16 spiral galaxy has end figures 06s.00, 08".7,
and there is a mag 17.5 star at 06s.12, 18".1.
B. Leibundgut, Harvard-Smithsonian Center for Astrophysics,
reports that an uncalibrated spectrum obtained by J. Huchra and
C.Heller on July 8.2 UT with the Multiple-Mirror Telescope confirms
the object as a type Ia supernova about one week past B maximum.
The galaxy has a redshift of about 9600 km/s.
IAUC 5300
MANNED SOVIET SPACE STATION MIR
David Moore e-mails MIR passes for Dublin, Ireland (53.38N, 6.32W).
"As Mir travels 300 miles/minute, times accurate for British Isles.
Altitude will vary (+/-50% max if in extreme north or south).
Based on Mir's orbit as of 1991 July 5 and morning sighting on July
7, so times should be accurate to minute or two.
Date U.T. Azim Alt Sun
10 JUL 91 00:40:41 207 33 -14.3
10 JUL 91 22:08:34 168 63 -8.5
10 JUL 91 23:44:38 189 45 -13.8
11 JUL 91 01:19:36S 229 15 -13.7
11 JUL 91 22:48:15 186 57 -11.4
12 JUL 91 00:24:09S 205 23 -14.5
12 JUL 91 21:51:48 187 64 -7.3
12 JUL 91 23:27:42 206 34 -13.5
13 JUL 91 22:31:21 203 46 -10.6
14 JUL 91 00:06:56S 219 16 -14.7
14 JUL 91 21:35:07 183 57 -6.0
14 JUL 91 23:10:54 208 24 -13.0
15 JUL 91 22:14:40 197 34 -9.6
15 JUL 91 23:49:45S 226 10 -14.6
16 JUL 91 22:53:54 212 17 -12.4
17 JUL 91 21:57:33 205 25 -8.5
18 JUL 91 22:36:46 216 11 -11.7
19 JUL 91 21:40:22 210 17 -7.2
(Next passes are for MORNINGS starting August 18)
"U.T." at its highest (or when enters/leaves Earth's shadow and
fades from view if time ends "S"). Start looking 5 to 10 minutes
before. "Sun" altitude of Sun in degrees. At -6 twilight is strong,
weak by -12.
Please e-mail U.T. when Mir passes above or below any bright star
(or planet) along with your latitude, longitude and height above
sea level (metres) to 10074:eim105."
Predictions courtesy ASTRONOMY IRELAND, (ask for sub details)
-David Moore B.Sc., F.R.A.S., P.O.Box 2888, Dublin 1, Ireland.
Guy M Hurst