TA e-circular

<title>TA e-circular</title>
<pre>
THE ASTRONOMER Electronic Circular No 391 1990 Mar 4 19.00UT
Microlink:MAG60138 JANET:GMH at UK.AC.RO-GREENWICH.STARLINK
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP, England. Telephone: (0256)471074 Int:+44256471074
Telex: 94082518 Answerback: TAGUY
------------------------------------------------------------------
SUPERNOVA 1990F IN ANONYMOUS GALAXY
C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
on Schmidt plates taken by A. Maury of a possible supernova
located RA 13h36m46s.48, Dec+32 24'32".9(1950), which is 5.6"W
1.4"S of the nucleus of an anonymous face-on spiral galaxy; end
figures of a nearby star (mpg 18.5):  41s.55, 35".1.  Magnitude
estimates of the SN candidate:  Jan. 23.2 UT, B > 22.3;
Feb. 24.1, V about 18.7; 25.0, B about 19.2.  There is a very
faint, diffuse, blue condensation at the location of the SN.
IAUC 4969
 
COMET AUSTIN (1989c1)
The orbital elements below, by B. G. Marsden, from MPC 16001, are
based on observations through Feb. 19.  The corresponding
'original' 1/a = -0.00041 +/- 0.00016, supporting the statement
on IAUC 4958 that the comet is probably 'new' in the Oort sense.
                    Epoch = 1990 Apr. 19.0 ET
     T = 1990 Apr.  9.9761 ET         Peri. =  61.5546
     e = 1.000380                     Node  =  75.2132  1950.0
     q = 0.349957 AU                  Incl. =  58.9596
     The predicted magnitudes in the following ephemeris are mean
values of the formulae used on IAUC 4926 and 4958.
     1990 ET      R.A. (1950) Decl.     Delta      r       m1
     Mar. 30     1 45.69    +11 22.1    1.255    0.468     2.8
     Apr.  4     1 46.50    +18 14.8
           9     1 40.86    +25 03.4    1.048    0.351     1.4
          14     1 26.76    +30 35.9
          19     1 06.26    +34 04.9    0.810    0.434     1.6
          24     0 42.60    +35 43.6
          29     0 16.84    +36 00.2    0.601    0.625     2.4
     May   4    23 47.93    +35 07.4
           9    23 13.16    +32 54.6    0.418    0.830     2.6
          14    22 28.20    +28 34.7
          19    21 27.99    +20 25.7    0.273    1.029     2.6
          24    20 11.62    + 6 48.5
          29    18 50.46    - 9 09.8    0.249    1.219     3.0
     June  3    17 41.91    -20 54.8
           8    16 52.58    -27 27.6    0.387    1.401     4.4
IAUC 4972
 
TA INDEX
Brian Manning can now be contacted by our MICROLINK subscribers
using:
(C:GB,PUB:GOLD 400,PVT:UK.AC,O:birmingham,SN:BGWM,
OU:space-research,OU:starlink)
 
Guy M Hurst
</pre>