Central Bureau for Astronomical Telegrams
IAUC 3219: A0535+26; NEPTUNE II (NEREID); 1977h; P/DANIEL; 1977 RA
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Read IAUC 3220
Circular No. 3219
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
A0535+26
R. Thomas and M. Duldig, University of Tasmania; R. F. Haynes,
C.S.I.R.O. Radiophysics; and P. Murdin, Anglo-Australian Observatory,
report that they have used the Parkes 64-m radio telescope to
observe the flaring x-ray source A0535+26. They found an upper
limit of 7 mJy (rms) at wavelength 2 cm on Apr. 25d05h30m UT.
NEPTUNE II (NEREID)
K. Aksnes, Center for Astrophysics, provides the following
continuation to the ephemeris on IAUC 3072:
1978 ET R. A. (1950) Decl. dR.A. cos Decl. dDecl.
May 12 17 06.77 -21 22.1 - 80"2 + 49"4
22 17 05.70 -21 20.6 - 97.7 + 48.9
June 1 17 04.56 -21 19.1 -114.3 + 48.0
11 17 03.39 -21 17.6 -129.5 + 46.6
21 17 02.23 -21 16.2 -142.9 + 44.7
July 1 17 01.13 -21 14.9 -153.9 + 42.1
11 17 00.13 -21 13.9 -161.6 + 38.8
21 16 59.27 -21 13.1 -165.2 + 34.5
31 16 58.58 -21 12.6 -163.0 + 29.1
Aug. 10 16 58.09 -21 12.4 -152.0 + 22.2
20 16 57.82 -21 12.7 -125.9 + 13.1
30 16 57.82 -21 13.3 - 67.6 + 1.1
Sept. 9 16 58.11 -21 14.3 + 39.7 - 9.4
19 16 58.59 -21 15.4 +113.4 - 9.0
PERIODIC COMET WHIPPLE (1977h)
Continuation to the ephemeris on IAUC 3036:
1978/79 ET R. A. (1950) Decl. Delta r m2
June 21 3 37.23 +14 49.8 3.313 2.530 19.1
July 1 3 55.48 +15 23.6
11 4 13.30 +15 47.6 3.194 2.560 19.1
21 4 30.58 +16 01.6
31 4 47.19 +16 05.8 3.045 2.597 19.1
Aug. 10 5 02.96 +16 00.4
20 5 17.73 +15 45.7 2.869 2.638 19.0
30 5 31.33 +15 22.6
Sept. 9 5 43.54 +14 51.7 2.674 2.684 18.9
19 5 54.14 +14 14.2
29 6 02.92 +13 31.2 2.469 2.733 18.8
Oct. 9 6 09.62 +12 44.3
19 6 14.02 +11 55.4 2.271 2.787 18.7
29 6 15.95 +11 06.3
Nov. 8 6 15.30 +10 19.6 2.106 2.843 18.7
18 6 12.17 + 9 38.0
28 6 06.84 + 9 03.9 2.006 2.902 18.6
Dec. 8 5 59.84 + 8 39.9
18 5 51.99 + 8 27.8 2.002 2.963 18.7
28 5 44.16 + 8 28.1
Jan. 7 5 37.25 + 8 40.2 2.110 3.025 18.9
17 5 31.94 + 9 02.6
27 5 28.68 + 9 33.0 2.320 3.089 19.2
Feb. 6 5 27.65 +10 08.9
16 5 28.85 +10 47.7 2.605 3.155 19.6
26 5 32.13 +11 27.3
Mar. 8 5 37.28 +12 05.8 2.932 3.220 19.9
18 5 44.08 +12 41.9
28 5 52.26 +13 14.2 3.275 3.286 20.2
Apr. 7 6 01.63 +13 41.9
17 6 11.96 +14 04.4 3.610 3.353 20.5
m2 = 12.5 + 5 log Delta + 10 log r
PERIODIC COMET DANIEL
The following predicted elements, by B. G. Marsden, were
obtained by extending the 1971 prediction (cf. IAUC 2296).
The comet is again impossibly placed for observation.
T = 1978 July 8.4377 ET Epoch = 1978 June 21.0 ET
Peri. = 10.8328 e = 0.549893
Node = 68.4927 1950.0 a = 3.691975 AU
Incl. = 20.1366 n = 0.1389364
q = 1.661783 AU P = 7.094 years
1977 RA
The following precise positions have been reported:
1977 UT R. A. (1950) Decl. Mag. Observer
Sept.23.07500 23 03 09.22 +17 38 01.9 15 Wild
Oct. 12.86563 23 20 38.95 +16 07 50.0 15.5 "
13.82639 23 21 41.03 +16 01 44.5 15.8 "
17.85910 23 26 12.10 +15 36 10.8 16 "
Nov. 5.77622 23 51 05.19 +13 58 52.7 17 "
Dec. 8.11766 0 43 06.81 +13 43 21.9 Bulger
P. Wild (Astronomical Institute, Berne University).
J. H. Bulger (Harvard College Observatory, Agassiz Station).
1978 May 11 (3219) Brian G. Marsden
Read IAUC 3220
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