Central Bureau for Astronomical Telegrams
IAUC 2821: JUPITER; N Aql 1975; N Sct 1975; 1975h; 1969 II; CERES-PSYCHE CAMPAIGN
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Circular No. 2821
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
JUPITER
S. Ortolani, Feltre, Italy, has independently reported the
discovery (cf. IAUC 2812) of a disturbance in Jupiter's South
Equatorial Belt at longitude 207o.4 (System II) or 253o.8 (System I).
The observation was made on Aug. 6 with a 30-cm reflector (250 x);
use of a filter showed that the feature was blue in color.
Another cablegram from the Agrupacion Astronomica, Sabadell,
Spain, reports that on Aug. 12/13 M. Cortes observed a disturbance
at longitude 120o (System II), the first time that three disturbances
in the South Equatorial Belt had been under observation
simultaneously. On Aug. 16/17 Gomez and Reginaldo measured the
center of the dark column of this disturbance at longitude 119o.0.
NOVA AQUILAE 1975
G. M. Hurst, Northampton, England, reports that his reduction
of an exposure by W. Pennell on Tri-X film (with Wratten 8 filter)
on Aug. 3.94 UT gives the photovisual magnitude as 14.3.
NOVA SCUTI 1975
Further selected magnitude estimates (visual unless otherwise
stated) are: June 5.94 UT, 8.3 (Gruppo Astrofili, Feltre, Italy;
prediscovery image on Ilford HP4 film); Aug. 1.86, 9.7 (R. Lukas,
Wilhelm Foerster Observatory); 3.86, 9.8 (Lukas); 5.90, 9.9 (Lukas);
9.26, 10.2 (C. Sherrod, North Little Rock, Arkansas); 11.1, 11.0 (K.
Simmons, Jacksonville, Florida); 13.15, 10.3 (Sherrod).
COMET KOBAYASHI-BERGER-MILON (1975h)
The following precise positions have been reported.
1975 UT R. A. (1950) Decl. m1 Observer
Aug. 3.88318 13 11 36.87 +53 17 41.7 7.0 Debehogne
3.92231 13 11 09.58 +53 15 21.2 "
4.90721 13 00 30.79 +52 17 31.9 6.5 "
4.92443 13 00 20.22 +52 16 28.8 "
5.87114 12 51 16.53 +51 22 35.7 6.5 "
5.89919 12 51 01.21 +51 21 00.8 "
6.88227 12 42 37.93 +50 27 01.9 6.0 "
6.90443 12 42 27.27 +50 25 48.0 "
6.91457 12 42 22.23 +50 25 17.3 4.5 Waterfield
6.92842 12 42 14.90 +50 24 33.0 "
7.92455 12 34 39.68 +49 31 58.8 6.0 Debehogne
7.93909 12 34 33.45 +49 31 12.8 "
8.88546 12 28 00.83 +48 43 20.5 6.0 "
8.90797 12 27 51.88 +48 42 12.7 "
12.86138 12 05 37.45 +45 40 22.0 5.5 "
12.88181 12 05 31.41 +45 39 28.7 "
H. Debehogne (Royal Observatory, Uccle). 40-cm f/5 astrograph.
R. L. Waterfield and J. J. Aarnio (Woolston Observatory).
Further selected total visual magnitude estimates, coma diameter
and tail information: Aug. 9.19 UT, 4.3, 10', ~ 15' (B. Comsa,
Provo, Utah, 8-cm reflector, 56 x); 10.09, 5.1, 3', 20' in p.a. 30o
(W. Nissen, Arlington, Virginia, 7 x 50 binoculars); 11.90, 6.0, 6',
- (F. Coccia and G. Samaritani, Agerola, Italy, 7 x 50 binoculars);
12.89, 4.8, -, 1o.7 in 65o (N. A. v.d. Mey, Soesterberg, The
Netherlands, 7 x 50 binoculars); 15.21, 4.2, 10', 7o (N. J. Mayo and J.
Truxton, Agoura, California, 7 x 35 binoculars); 16.17, 4.2, -, 6o
(Mayo and Truxton); 17.95, 3.5-4.0, 5', 20'-25' (K. Andersson,
Stockholm, Sweden, 12 x 80 binoculars); 19.10, 4.8, 8', 3o in 43o
(P. Maley, Houston, Texas, 7 x 35 binoculars); 20.09, 4.7, 8', 3o
in 45o (Maley); 21.09, 4.6, -, 3o in 42o (Maley).
PERIODIC COMET GUNN (1969 II)
The following precise positions have been reported:
1975 UT R. A. (1950) Decl. Observer
Apr. 18.08890 12 24 01.33 +11 25 13.4 McCrosky
30.17340 12 16 46.94 +11 21 20.2 Bulger
May 17.62326 12 11 08.02 +10 30 30.8 Suzuki
June 4.16944 12 12 04.87 + 8 52 53.5 Krumenaker
R. E. McCrosky and J. H. Bulger (Harvard College Observatory, Agassiz
Station). 155-cm reflector. Measurer: C. Y. Shao.
K. Suzuki (JCPM Oi). 13-cm f/5.8 reflector. Measurer: T. Urata.
From Nihondaira Obs. Circ. No. 673.
L. Krumenaker (Warner and Swasey Observatory, Nassau Station).
CERES-PSYCHE CAMPAIGN
B. Zellner writes that he is organizing a campaign for photometric
observations of (1) Ceres and (16) Psyche during the coming
months. For Ceres intense worldwide photometry is planned for
around Nov. 29 and/or Dec. 13; for Psyche photometry should cover
the whole span from Sept. 1975 to Mar. 1976. Those interested in
participating should contact Dr. Zellner at: Lunar and Planetary
Laboratory, University of Arizona, Tucson, AZ 85721, U.S.A.
1975 August 25 (2821) Brian G. Marsden
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