Central Bureau for Astronomical Telegrams
IAUC 6547: XTE J1709-267; C/1995 O1
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Circular No. 6547
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
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Phone 617-495-7244/7440/7444 (for emergency use only)
XTE J1709-267
R. M. Hjellming and M. P. Rupen, National Radio Astronomy
Observatory, report the discovery of a candidate for the radio
counterpart of the x-ray nova XTE J1709-267 (IAUC 6543). VLA
observations on Jan. 25.62 UT were used to detect a radio source
with flux densities of about 104 and about 111 mJy at 1.42 and
4.9 GHz, respectively, at a position of R.A. = 17h09m09s.23,
Decl. = -26d42'19".0 (equinox 2000.0, estimated error < 1").
This was the only detected radio source in the RXTE error region,
and the probability of a 4.9-GHz background source of this strength
in the field is about 0.002. They add that further observations
are underway to search for the variability typical of x-ray novae.
COMET C/1995 O1 (HALE-BOPP)
Extension to the ephemeris on IAUC 6507 (elements on MPC 28557):
1997 TT R. A. (2000) Decl. Delta r Elong. Phase m1
Feb. 11 20 07.85 +20 50.1 1.807 1.251 41.4 31.5 0.3
16 20 24.40 +23 57.3 1.711 1.196 43.0 34.3 -0.1
21 20 43.63 +27 22.0 1.620 1.144 44.3 37.1 -0.4
26 21 06.32 +31 01.2 1.535 1.095 45.3 40.0 -0.7
Mar. 3 21 33.42 +34 48.4 1.460 1.050 46.0 42.7 -1.0
8 22 05.97 +38 31.4 1.398 1.010 46.2 45.2 -1.2
13 22 44.77 +41 51.1 1.352 0.976 46.1 47.2 -1.5
18 23 29.71 +44 22.6 1.323 0.948 45.6 48.6 -1.6
23 0 19.05 +45 42.1 1.315 0.929 44.8 49.1 -1.7
28 1 09.30 +45 36.5 1.327 0.917 43.7 48.7 -1.8
Apr. 2 1 56.54 +44 10.4 1.359 0.914 42.3 47.4 -1.7
7 2 38.11 +41 42.9 1.406 0.920 40.7 45.2 -1.6
12 3 13.22 +38 38.1 1.468 0.935 39.0 42.5 -1.5
17 3 42.36 +35 16.3 1.540 0.957 37.2 39.4 -1.3
22 4 06.55 +31 51.7 1.619 0.987 35.3 36.0 -1.0
27 4 26.85 +28 32.7 1.702 1.023 33.3 32.7 -0.7
May 2 4 44.15 +25 23.3 1.787 1.065 31.4 29.5 -0.5
7 4 59.16 +22 25.2 1.873 1.111 29.4 26.5 -0.2
12 5 12.42 +19 38.4 1.958 1.161 27.6 23.8 0.1
17 5 24.31 +17 02.1 2.041 1.215 25.9 21.3 0.4
22 5 35.14 +14 35.2 2.121 1.271 24.4 19.2 0.7
27 5 45.12 +12 16.5 2.199 1.329 23.2 17.5 0.9
June 1 5 54.43 +10 04.8 2.272 1.388 22.3 16.1 1.2
(C) Copyright 1997 CBAT
1997 January 27 (6547) Brian G. Marsden
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