home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Suzy B Software 2
/
Suzy B Software CD-ROM 2 (1994).iso
/
nasa
/
iau0103a
/
iau5383.txt
< prev
next >
Wrap
Text File
|
1995-05-02
|
2KB
|
54 lines
Circular No. 5383
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
PERIODIC COMET TSUCHINSHAN 1 (1991c1)
S. Nakano, Sumoto, Japan, reports the recovery of this comet by
T. Seki with the 0.60-m reflector at Geisei. The comet has a tail
30" long in p.a. 300 deg and is diffuse with central condensation.
Seki's observations yield a correction to the prediction on MPC
13057 of Delta(T) about +0.02 day:
1991 UT R.A. (1950) Decl. m1
Nov. 8.84306 12 30 53.70 + 4 17 18.5 17
11.83056 12 38 14.92 + 3 39 39.0 18
11.84340 12 38 16.77 + 3 39 30.1
11.85208 12 38 18.09 + 3 39 19.9
COMET 1991b1
E. Helin, Jet Propulsion Laboratory, reports the following mea-
surements (beginning and end points of the trailed images) by P.
Rose of pre-discovery images of this comet, from films taken by her-
self, K. Lawrence, and Rose with the 0.46-m Schmidt telescope at
Palomar:
1991 UT R.A. (1950) Decl. m1
Nov. 3.21111 23 56 46.59 - 9 19 38.1 13
3.21528 23 56 47.49 - 9 19 16.1
3.23490 23 56 50.21 - 9 16 48.6
3.23906 23 56 50.57 - 9 16 29.4
6.16597 0 04 23.57 - 3 35 49.3
6.17014 0 04 24.08 - 3 35 30.2
6.18993 0 04 27.07 - 3 33 04.8
6.19410 0 04 27.42 - 3 32 44.9
Total visual magnitude estimate by C. S. Morris, Pine Mountain
Club, CA (0.26-m reflector): Nov. 12.21 UT, 10.7 (coma diameter 6').
1991 VA
D. Rabinowitz, Lunar and Planetary Laboratory, reports his dis-
covery, using the 0.91-m Spacewatch telescope at Kitt Peak, of a
faint Apollo object. From observations by Rabinowitz and J. V.
Scotti during Nov. 1-6 B. G. Marsden, Harvard-Smithsonian Center for
Astrophysics, has determined T = 1991 Sept. 23.37 ET, Peri. = 313.50,
Node = 37.00, i = 6.50 (equinox 1950.0), q = 0.9259 AU, e = 0.3507,
H = 27.0.
1991 November 12 Daniel W. E. Green