Central Bureau for Astronomical Telegrams
IAUC 6176: 1995Q; BL Lac; 58P
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 6177
.dvi or
.ps format.
Circular No. 6176
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
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)
Phone 617-495-7244/7440/7444 (for emergency use only)
SUPERNOVA 1995Q IN ANONYMOUS GALAXY
R. H. McNaught, Anglo-Australian Observatory, reports his
discovery of another supernova (mag about 18) found on an R plate
taken by M. J. Drinkwater with the U.K. Schmidt Telescope on May
31.7 UT and located at R.A. = 20h16m29s.51, Decl. = -43o24'24".6,
which is 20".5 east and 5".1 south of the galaxy's center (offsets
measured from a CCD image obtained with the 1.0-m reflector at
Siding Spring on June 2 by McNaught). Nothing appears at the
position of the suspect either on the ESO R survey or the SERC J
survey. Stars of mag 16.5 and 18 have the following respective
position end figures: 27s.57, 41".9; 29s.34, 25'01".8. The
latter star is about 0.1 mag fainter than the supernova. R. A.
Stathakis and S. Lee, Anglo-Australian Observatory, obtained a
spectrogram (range 300-1020 nm) with the Anglo-Australian Telescope
on June 1; the spectrum shows this to be a normal type-II supernova,
about 2 months old.
BL LACERTAE
R. C. Vermeulen, California Institute of Technology (CIT); I.
W. A. Browne, Jodrell Bank and CIT; M. H. Cohen, CIT; R. W. Goodrich,
Space Telescope Science Institute; and P. M. Ogle, A. C. S. Readhead,
and H. D. Tran, CIT, write: "We report the clear detection of broad
H-alpha line emission in a spectrum of BL Lac taken on May 21.49 UT
at the Hale telescope; this emission was confirmed on June 1.56 at
the Keck telescope. Preliminary reduction of the May 21 data shows
H-alpha with EW = 0.75 nm and FWHM = 4000 km/s. [N II] at 658.4 nm
is superimposed; it is unresolved (FWHM </= 600 km/s), has redshift
z = 0.068 and EW = 0.1 nm. Hints of H-beta and [O III] 500.7-nm
emission need verification and further analysis. Na I D is the most
prominent absorption feature; other stellar absorption features may
be present also. Neither spectrogram was taken in photometric
conditions; crude flux calibration, as well as visual inspection of
the guider field at Keck, suggest that the continuum is probably in
a faint state."
COMET 58P/JACKSON-NEUJMIN
Unfiltered CCD total magnitude reported by J. V. Scotti, Kitt
Peak (0.9-m Spacewatch telescope): May 22.42 UT, 21.3. The comet
appeared very nearly stellar, the image being "softer" than nearby
field stars.
1995 June 2 (6176) Daniel W. E. Green
Read IAUC 6177
.dvi or
.ps format.
Our Web policy. Index to the CBAT/MPC/ICQ pages.
