IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8029: P/2002 X2; XTE J1908+094

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 8028  SEARCH Read IAUC 8030

View IAUC 8029 in .dvi or .ps format.
IAUC number


                                                  Circular No. 8029
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET P/2002 X2 (NEAT)
     K. J. Lawrence reports the discovery of a comet by the NEAT
team (which now includes also R. Bambery, E. Helin, S. Pravdo, M.
Hicks, and R. Thicksten) from CCD images taken with the 1.2-m
Schmidt telescope at Palomar (discovery observation below).
Following posting on the NEO Confirmation Page, J. Ticha and M.
Tichy found the comet to show a 7" coma and a 14" tail in p.a. 45
deg on Klet images taken on Dec. 8.8 UT.  P. Holvorcem that the co-
addition of three 120-s exposures taken with the Tenagra II
telescope at Nogales, AZ, on Dec. 8.20 shows a coma with diameter
about 7" and a tail about 14" long in p.a. about 55 deg.  F. B.
Zoltowski, Edgewood, NM, notes that CCD images taken with a 0.3-m
reflector on Dec. 9.15 shows the comet as diffuse with a 15" coma
diameter and a possible faint tail in p.a. 240 deg.

     2002 UT             R.A. (2000) Decl.        m1
     Dec.  7.17100    2 18 17.91   - 7 46 37.0   18.4

     Further astrometry (including prediscovery observations by
LONEOS on Oct. 5 and Dec. 6, and by NEAT on Nov. 5) and the
following orbital elements by B. G. Marsden appear on MPEC 2002-X51.

     T = 2003 Mar. 29.5651 TT         Peri. = 356.0279
     e = 0.373384                     Node  =  78.1561  2000.0
     q = 2.528633 AU                  Incl. =  25.3531
       a =  4.035377 AU    n = 0.1215844    P =   8.106 years


XTE J1908+094
     M. P. Rupen, A. J. Mioduszewski, and V. Dhawan, National Radio
Astronomy Observatory, report the detection of renewed radio
emission associated with the x-ray transient and black-hole
candidate XTE J1908+094 (IAUC 7856):  "After the initial radio
detection (IAUC 7874) on Mar. 21, observations at irregular
intervals with the Very Large Array at 8.46 GHz gave detections
through May 13, then non-detections between June 24 and Nov. 11 (to
rms noise levels of 0.04-0.08 mJy/beam).  On Dec. 7.99 UT, we again
obtained a clear detection of 0.34 +/- 0.055 mJy, at the position
of the transient.  Observations at other wavelengths, particularly
x-ray and near-infrared (cf. IAUC 7897), are urgently requested."

                      (C) Copyright 2002 CBAT
2002 December 9                (8029)            Daniel W. E. Green

Read IAUC 8028  SEARCH Read IAUC 8030

View IAUC 8029 in .dvi or .ps format.


Our Web policy. Index to the CBAT/MPC/ICQ pages.


Valid HTML 4.01!