Central Bureau for Astronomical Telegrams
IAUC 3077: 1977 HB; 1977e; 1977b; 1977a
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 3078
Circular No. 3077
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
1977 HB
Further positions have been reported as follows:
1977 UT R. A. (1950) Decl. Mag. Observer
May 16.15280 13 02.3 -16 45 17 McCrosky
18.10773 13 00.7 -16 57 Shao
18.21389 13 00 35.41 -16 56 40.7 16 Giclas
18.24236 13 00 33.92 -16 56 49.5 "
R. E. McCrosky and C.-Y. Shao (Harvard College Observatory, Agassiz
Station). 155-cm reflector. Conditions rather poor.
H. L. Giclas (Lowell Observatory). 33-cm photographic telescope.
Measurer: M. L. Kantz.
The following orbital elements, by B. G. Marsden, confirm that
the object is of Apollo type (cf. IAUC 3067):
T = 1977 Jan. 14.377 ET
Peri. = 54.871 e = 0.34897
Node = 32.790 1950.0 a = 1.07730 AU
Incl. = 9.409 n = 0.881458
q = 0.70135 AU P = 1.12 years
1977 ET R. A. (1950) Decl. Delta r B
May 17 13 01.60 -16 49.4 0.327 1.291 17.5
22 12 58.42 -17 17.8
27 12 57.36 -17 44.8 0.407 1.328 18.1
June 1 12 58.01 -18 11.8
6 13 00.04 -18 39.4 0.492 1.360 18.7
11 13 03.24 -19 07.8
16 13 07.42 -19 37.5 0.582 1.388 19.2
21 13 12.47 -20 08.4
26 13 18.25 -20 40.7 0.674 1.411 19.6
July 1 13 24.67 -21 14.2
6 13 31.65 -21 48.6 0.768 1.429 19.9
11 13 39.13 -22 23.9
16 13 47.09 -22 59.9 0.862 1.442 20.2
21 13 55.50 -23 36.4
26 14 04.31 -24 13.3 0.955 1.450 20.4
31 14 13.51 -24 50.2
Aug. 5 14 23.07 -25 27.0 1.045 1.453 20.6
B = 18.7 + 5 log Delta + 5 log r + 0.023 (phase angle)
COMET HELIN (1977e)
Further precise positions have been reported as follows:
1977 UT R. A. (1950) Decl. Observer
May 5.15278 11 15 58.49 -20 48 48.3 Giclas
14.21944 10 35 03.78 -27 22 03.9 Helin
15.24167 10 30 42.30 -28 02 49.7 "
H. L. Giclas (Lowell Observatory). Measurer: M. L. Kantz.
E. Helin, D. Zelinsky and T. Pryor (Palomar Mountain Observatory).
46-cm Schmidt telescope. Measurer: S. J. Bus (initial given
improperly on IAUC 3064].
PERIODIC COMET GRIGG-SKJELLERUP (1977b)
The following precise positions have been reported:
1977 UT R. A. (1950) Decl. m1 Observer
Mar. 19.47837 16 02 08.61 -76 13 00.5 13.2 Gilmore
19.49354 16 02 37.09 -76 12 18.2 "
Apr. 18.77431 20 21 10.8 - 4 51 19 14 Seki
20.77431 20 24 20.3 - 1 25 05 12 "
21.7889 20 25 48.9 + 0 12 01 14 Furuta
A. C. Gilmore (Carter Observatory). Measurer: P. M. Kilmartin.
T. Seki (Kochi Observatory, Geisei Station) and T. Furuta (Tokai).
From Orient. Astron. Assoc. Comet Bull. No. 145.
J. Bortle, Brooks Observatory, provides the following total
visual magnitude estimates and coma diameters (32-cm reflector):
Apr. 19.36 UT, 9.8, 3'.5; 20.36, 9.7, 3'.2; 29.35, 9.6. 3'.9; 30.34,
9.8, ~ 3'; (10 x 50 bin.): Apr. 20.36, 8.9, 6'; 30.34, 9.1, 5'-6'.
PERIODIC COMET TAYLOR (1977a)
The following precise positions have been reported:
1977 UT R. A. (1950) Decl. Mag. Observer
Feb. 11.18958 6 23 11.93 +28 40 27.8 Kowal
Mar. 11.24097 6 46 18.16 +33 00 07.1 "
12.48993 6 47 56.20 +33 07 10.8 16 Furuta
12.50069 6 47 57.17 +33 07 16.2 "
14.53958 6 50 42.50 +33 18 06.9 16.5 "
C. Kowal (Palomar Mountain Observatory).
T. Furuta (Tokai). From Orient. Astron. Assoc. Comet Bull. No. 146.
1977 May 24 (3077) Brian G. Marsden
Read IAUC 3078
Our Web policy. Index to the CBAT/MPC/ICQ pages.
