Central Bureau for Astronomical Telegrams
IAUC 4160: BINARY PULSARS 0655+64 AND 0820+02; 1985 TB; 1985n
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Read IAUC 4161
Circular No. 4160
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-495-7244/7440/7444
BINARY PULSARS 0655+64 AND 0820+02
S. R. Kulkarni, Palomar Observatory and Department of
Astronomy, California Institute of Technology, reports: "We have
identified two objects within 1" of the radio position of the
binary pulsar 0655+64. The object 1"1 west of the radio position
is a faint elliptical galaxy. The object 0"88 east of the object
is stellar with apparent mag R = 21.8. We reconfirm the detection
of a star with apparent R = 23.2 coincident with the position of
the binary radio pulsar 0820+02. The V-R for the two stars are
+0.19 and -0.67, respectively. The surprisingly small V-R for the
0820+02 candidate could be due either to variability on timescales
on the order of 10 min or to a non-thermal contribution."
1985 TB
Ephemeris continuation (cf. IAUC 4132) from the orbital
elements on MPC 10303:
1985/86 ET R.A. (1950.0) Decl. p r Mag.
Dec. 31 21 52.81 +58 08.2 0.511 1.114 16.7
Jan. 5 21 49.01 +60 43.0
10 21 46.16 +63 23.8 0.531 1.118 16.8
15 21 44.23 +66 12.7
20 21 43.26 +69 11.6 0.545 1.135 16.8
25 21 43.4 +72 22.1
30 21 45.0 +75 45.8 0.554 1.164 16.9
Feb. 4 21 49.2 +79 24.1
9 22 00.1 +83 17.8 0.562 1.205 16.9
14 22 48 +87 24.1
19 8 01 +87 49.5 0.575 1.254 16.9
24 9 05.8 +83 14.9
Mar. 1 9 20.0 +78 23.2 0.597 1.311 17.0
6 9 27.5 +73 23.0
11 9 33.07 +68 19.3 0.634 1.373 17.2
16 9 38.04 +63 17.2
21 9 42.81 +58 21.5 0.692 1.440 17.4
PERIODIC COMET BOETHIN (1985n)
Total visual magnitude estimate by D. W. E. Green, Cambridge,
MA, 0.20-m reflector: Jan. 7.98 UT, 7.2 (coma diameter ~ 6').
1986 January 9 (4160) Brian G. Marsden
Read IAUC 4161
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