Central Bureau for Astronomical Telegrams
IAUC 3229: MXB1659-29; 1978 DA; P/GUNN; 1977m
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Read IAUC 3230
Circular No. 3229
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 Telex: 921428
Telephone: (617) 864-5758
MXB1659-29
J. Grindlay, Center for Astrophysics, and the HEAO A3 Group
announce the identification of MXB1659-29 with a faint ultraviolet
stellar object (V ~ 18) at R.A. = 16h58m55s.5, Decl. = -29o52'26" (equinox
1950.0) to about 5" accuracy. This object was detected as a
transient-like x-ray source on Mar. 6 (IAUC 3190), and optical
monitoring for time variability should therefore be conducted.
1978 DA
Extension of the ephemeris on IAUC 3192:
1978 ET R. A. (1950) Decl. Delta r B
July 11 18 58.26 +14 58.6 0.609 1.545 19.2
21 18 51.31 +10 07.3
31 18 47.74 + 5 29.9 0.775 1.703 19.9
Aug. 10 18 47.58 + 1 21.1
20 18 50.57 - 2 12.4 1.013 1.860 20.7
30 18 56.22 - 5 09.9
Sept. 9 19 04.10 - 7 33.7 1.313 2.013 21.5
PERIODIC COMET GUNN
Continuation to the ephemeris on IAUC 3057:
1978/79 ET R. A. (1950) Decl. Delta r m2
July 11 4 13.59 +19 16.9 5.148 4.459 20.1
21 4 21.98 +19 43.5
31 4 29.71 +20 06.8 4.939 4.488 20.0
Aug. 10 4 36.65 +20 27.3
20 4 42.66 +20 44.9 4.683 4.516 19.9
30 4 47.58 +21 00.1
Sept. 9 4 51.26 +21 13.0 4.401 4.542 19.8
19 4 53.54 +21 23.8
29 4 54.30 +21 32.7 4.120 4.566 19.7
Oct. 9 4 53.43 +21 39.7
19 4 50.90 +21 44.6 3.875 4.588 19.6
29 4 46.79 +21 47.5
Nov. 8 4 41.26 +21 48.0 3.704 4.609 19.5
18 4 34.66 +21 46.2
28 4 27.43 +21 42.2 3.644 4.629 19.5
Dec. 8 4 20.07 +21 36.8
18 4 13.15 +21 31.0 3.710 4.646 19.5
28 4 07.12 +21 26.0
Jan. 7 4 02.37 +21 23.0 3.894 4.662 19.6
17 3 59.15 +21 23.0
27 3 57.54 +21 26.8 4.165 4.677 19.8
Feb. 6 3 57.56 +21 34.4
16 3 59.15 +21 45.9 4.485 4.689 20.0
26 4 02.17 +22 00.8
Mar. 8 4 06.51 +22 18.5 4.814 4.700 20.1
18 4 12.00 +22 38.5
28 4 18.51 +22 59.9 5.121 4.709 20.3
Apr. 7 4 25.88 +23 22.2
17 4 34.00 +23 44.7 5.381 4.717 20.4
COMET KOHLER (1977m)
Further precise positions have been reported as follows:
1977/78 UT R. A. (1950) Decl. m1 Observer
Oct. 3.76061 16 32 31.17 +18 09 44.4 Gressmann
7.76953 16 45 17.67 +16 03 02.8 "
8.75422 16 48 34.38 +15 30 20.0 "
11.75273 16 58 53.91 +13 46 00.3 "
16.01941 17 14 30.41 +11 05 53.2 Torres
16.33450 17 15 42.18 +10 53 33.8 Gilmore
Nov. 6.02188 18 47 35.15 - 5 28 13.9 Torres
7.02014 18 52 40.28 - 6 21 54.1 "
10.73021 19 12 00.66 - 9 42 06.2 6.8 Bruwer
10.73993 19 12 03.58 - 9 42 33.8 "
11.36774 19 15 24.44 -10 16 25.4 Gilmore
11.37428 19 15 26.52 -10 16 47.5 "
14.03440 19 29 48.45 -12 39 21.1 Torres
16.06876 19 41 00.28 -14 26 30.3 "
17.07536 19 46 36.20 -15 18 44.8 "
Jan. 2.52083 23 56 27.32 -34 15 14.1 Candy
8.38230 0 21 21.84 -34 01 12.1 9 Natori
17.53664 0 56 46.10 -33 04 37.7 Verveer
27.54931 1 31 11.97 -31 31 16.5 Candy
Feb. 6.51667 2 01 50.63 -29 39 43.6 Verveer
25.51007 2 52 48.70 -25 50 46.3 Candy
Mar. 14.49063 3 32 32.86 -22 35 24.3 Johnson
30.48021 4 06 28.68 -19 55 01.4 "
M. Gressmann (Falkensee). Long. = -13o.0374, Lat. = +52o.5676.
C. Torres (University of Chile). Cerro Calan until Nov. 7, then
Cerro El Roble. Measurers: M. Wischnjewsky and S. Barros.
A. C. Gilmore (Carter Observatory). Measurer: P. M. Kilmartin.
J. A. Bruwer (South African Astron. Obs. Annexe, Hartbeespoort).
M. P. Candy, A. Verveer and J. Johnson (Perth Observatory).
A. Natori (JCPM Yakiimo Station). From Nihondaira Obs. Circ. No.970.
1978 June 15 (3229) Brian G. Marsden
Read IAUC 3230
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