Central Bureau for Astronomical Telegrams
IAUC 2279: SN IN NGC 1533; SN IN NGC 7619; 1970g; Occn OF beta Sco BY JUPITER
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Read IAUC 2280
Circular No. 2279
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK
Western Union: RAPID SATELLITE CAMBMASS
SUPERNOVA IN NGC 1533
Mr. Robert Evans, Boolaroo, New South Wales, reports that he
discovered on July 1 a supernova close to the nucleus of NGC 1533
(R. A. 4h08m.8, Decl. -56o15', equinox 1950.0). The visual magnitude
was 11.8. Other magnitude estimates follow: July 6, 12.6; 8, 12.1;
11, 12.4; 13, 12.2; 17, 12.7. The object was no longer visible in
his 25-cm reflector on July 29. Comparison with other supernovae
suggests that the magnitude may still be as bright as 16, and
photographic confirmation would be most desirable.
SUPERNOVA IN NGC 7619
Dr. L. Rosino, Asiago Astrophysical Observatory, reports the
discovery of a supernova in NGC 7619 (R. A. 23h17m.7, Decl. +7o55'
equinox 1950.0), 27" west and 30" south of the nucleus. On Sept.
24 the photographic magnitude was 14.5.
COMET ABE (1970g)
The following precise positions have been reported:
1970 UT R. A. (1950) Decl. Observer
Aug. 1.99438 2 14 04.66 +39 19 11.9 Petrovicova
4.97840 2 10 52.82 +41 54 40.7 "
5.97456 2 09 33.58 +42 50 29.8 "
6.96652 2 08 05.87 +43 48 00.6 "
13.95963 1 51 50.68 +51 39 05.6 "
14.99561 1 48 08.60 +52 59 25.3 "
17.91700 1 34 47.50 +57 00 41.4 Waterfield
17.94315 1 34 39.62 +57 02 55.5 Rutter
25.91557 0 11 54.11 +69 05 11.0 Petrovicova
26.04798 0 09 27.17 +69 16 31.7 Chareton
26.88905 23 52 37.03 +70 25 36.8 Petrovicova
26.91005 23 52 10.78 +70 27 16.7 Waterfield
27.93544 23 28 13.61 +71 43 38.5 Petrovicova
28.92348 23 01 26.52 +72 45 57.8 "
30.89289 21 57 46.86 +74 03 02.6 "
31.88351 21 22 19.67 +74 11 36.5 "
Sept. 2.83871 20 13 18.37 +73 22 32.3 Chareton
2.91049 20 10 54.63 +73 19 03.3 Mrkos
7.89748 18 09 36.88 +66 09 49.9 "
8.79751 17 56 07.24 +64 28 27.5 "
12.87024 17 13 57.53 +56 29 28.7 South
14.83935 17 00 53.24 +52 41 43.2 Chareton
16.86285 16 50 26.74 +48 56 42.3 "
17.89636 16 46 00.27 +47 06 19.3 Considere
18.02448 16 45 29.27 +46 52 48.5 "
18.89572 16 42 10.18 +45 22 46.8 Chareton
19.87886 16 38 47.01 +43 44 07.8 Hilaire
R. Petrovicova and A. Mrkos (Klet Observatory).
R. L. Waterfield, G. H. Rutter and R. South (Woolston Observatory).
Measurer: R. L. Waterfield.
Chareton, Considere and Hilaire (Besancon Observatory).
OCCULTATION OF beta SCORPII BY JUPITER
Mr. G. E. Taylor writes: "On 1971 May 13 Jupiter will occult
the bright spectroscopic binary beta Sco, and also two nearby stars of
magnitudes 5 and 9, respectively. One or both phases of the occultations
will be visible for most of the inhabited regions of the
world except for North and South America and western Europe. Predictions
are given in Handbk Br. astr. Assoc. for 1971 as follows:
Area of Station Disappears Reappears
1971 Star Visibility UT p.a. UT p.a.
May 13 S.A.O. Australia Mt. Stromlo 17.8 267 20.0 115
159683 New Zealand Wellington 17.8 266 low
(5.1) Asia Tokyo 17.8 274 20.1 109
Europe Abastuman 17.9 272 20.2 110
Africa Cape 17.9 264 20.2 118
May 13 beta Sco Australia Mt. Stromlo 18.4 222 19.6 158
(2.9) New Zealand Wellington 18.5 220 low
Asia Tokyo 18.3 233 19.8 149
Europe Abastuman 18.4 232 20.0 150
Africa Cape 18.7 218 19.8 161
The star of magnitude 9 is 0".8 distant from beta Sco in p.a. 106o and
will be occulted a few minutes earlier than beta Sco itself. A little
earlier in the day, on about May 13.3-13.4, satellite III will pass
very close to beta Sco, and this event will be visible from North
America (except the eastern part), the Pacific, New Zealand and Australia
(except the western part). Although it seems likely that satellite
III will pass about 3" north of the star (geocentrically), it
is suggested that observers keep careful watch in case of an occultation.
The farther north the observer is, the greater the chance
of an occultation." Mr. Taylor would be glad to receive observations
at the address: H.M. Nautical Almanac Office, Royal Greenwich
Observatory, Herstmonceux Castle, Hailsham, Sussex, England.
1970 September 29 (2279) Brian G. Marsden
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