Central Bureau for Astronomical Telegrams
IAUC 5543: 1992R, 1992ac; 1992 HE
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 5544
Circular No. 5543
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)
SUPERNOVAE 1992R AND 1992ac IN MCG +10-24-007
G. Gomez, Instituto de Astrofisica de Canarias; and R. Lopez,
Universidad de Barcelona, report: "Optical spectra were obtained
on May 30.2 UT by G. Gomez, R. Lopez, J. Rey (La Palma Observatory),
and R. Catchpole (Royal Greenwich Observatory) with the 2.5-m
Isaac Newton telescope and the Faint Object Spectrograph (resolution
1 nm, range 320-1000 nm) at Observatorio del Roque de los
Muchachos, La Palma. A spectrogram of the nucleus of the galaxy
MCG +10-24-007 (R.A. = 16h36m15s.7, Decl. = +58 15'55", equinox
1950.0, Catalogue of Principal Galaxies) was obtained, indicating
that MCG +10-24-007 is an active galaxy. From the H-alpha and S II
emission lines, we derive a redshift of 0.05. A spectrogram of SN
1992R (cf. IAUC 5494) obtained in the same run suggests that this
object is a type-I supernova a few months after maximum. In addition,
another brighter starlike object was found, located about 4"
north of the SN 1992R; the spectrum of this object (SN 1992ac)
corresponds to that of a type-Ia supernova about 1 month after
maximum light."
1992 HE
Improved orbital elements from MPC 20344:
T = 1992 June 21.4519 TT Peri. = 262.9017
e = 0.566183 Node = 27.2559 2000.0
q = 0.958138 AU Incl. = 37.1872
a = 2.208624 AU n = 0.3002764 P = 3.282 years
1992 TT R. A. (2000) Decl. Delta r Elong. Phase V
June 7 4 17.02 -45 52.3 0.585 0.977 69.4 76.5 15.5
17 4 17.88 -39 34.5 0.657 0.960 66.0 75.3 15.6
27 4 19.18 -34 04.2 0.715 0.961 64.7 73.0 15.7
July 7 4 21.01 -29 00.7 0.758 0.980 65.1 70.3 15.8
17 4 23.10 -24 14.1 0.785 1.015 67.2 67.4 15.9
27 4 24.99 -19 39.8 0.794 1.064 70.8 64.4 15.9
Aug. 6 4 25.81 -15 14.0 0.788 1.123 76.0 61.2 15.9
16 4 24.54 -10 50.8 0.768 1.191 82.7 57.5 15.9
26 4 19.95 - 6 23.1 0.738 1.264 91.2 53.1 15.8
Sept. 5 4 10.47 - 1 42.5 0.703 1.340 101.6 47.4 15.7
15 3 54.54 + 3 17.9 0.670 1.419 114.2 40.3 15.5
1992 June 12 (5543) Daniel W. E. Green
Read IAUC 5544
Our Web policy. Index to the CBAT/MPC/ICQ pages.
