Central Bureau for Astronomical Telegrams
IAUC 6149: JUPITER I (IO); 1995E; 1995D; 1995H; 117P
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Circular No. 6149
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)
Phone 617-495-7244/7440/7444 TWX 710-320-6842 ASTROGRAM CAM
MARSDEN@CFA.HARVARD.EDU or GREEN@CFA.HARVARD.EDU (science)
JUPITER I (IO)
J. R. Spencer and J. E. B. Spencer, Lowell Observatory; and D.
Griep, NASA Infrared Telescope Facility (IRTF), write: "The very
bright volcanic hot spot seen on Mar. 2 (cf. IAUC 6143) was seen
again in 3.5- and 3.8-micron disk-resolved images of Io between
Mar. 9.65 and 9.79 UT, but its brightness had decreased severalfold,
so that it was only a small fraction of the brightness of the
sunlit disk. Further analysis of the Mar. 2 images has yielded a
location of 95 deg west, 45 deg south for the hot spot, with a
current uncertainty of about +/-15 deg; it was as bright as the
sunlit disk at 4.8 microns on Mar. 2, and low-precision 4.8-micron
photometry of Io on Feb. 28.85 suggests that the spot was bright
then also. All observations were made with the NSFCAM 1- to 5-
micron camera at the IRTF on Mauna Kea."
SUPERNOVA 1995E IN NGC 2441
Further CCD photometry (cf. IAUC 6144): Feb. 14.084 UT, 17:
+/- 0.5 (D. Lane, M. Blake, P. Gray, and B. Werstiuk, Saint Mary's
University, Halifax; unfiltered pre-discovery image; comparison
stars GSC 4369.0725 and 4369.0881); 28.215, R = 15.5 +/- 0.1 (Lane
et al.); Mar. 7.91, V = 16.37 +/- 0.03 (H. Mikuz, Ljubljana).
SUPERNOVA 1995D IN NGC 2962
Further CCD photometry (cf. IAUC 6144): Feb. 28.248 UT, R =
13.8 +/- 0.1 (Lane et al.); Mar. 7.94, V = 14.08 +/- 0.02, B-V =
+0.57 +/- 0.04 (H. Mikuz, Ljubljana).
Corrigendum. On IAUC 6144, line 6, for Feb. 19.07 read
Feb. 18.07
SUPERNOVA 1995H IN NGC 3526
The position reported by R. H. McNaught on IAUC 6146 was from
a CCD image obtained on Mar. 7.71 UT by McNaught and D. J. Asher
with the 1.0-m reflector at Siding Spring; a magnitude of V = 15.7
was derived from that image.
COMET 117P/HELIN-ROMAN-ALU 1
CCD photometry by S. M. Larson and C. W. Hergenrother with the
Steward Observatory's 2.3-m reflector on Jan. 29.48 UT gave R =
19.7. Three 120-s coadded frames showed a coma 8" in diameter and
a 35" tail.
1995 March 13 (6149) Daniel W. E. Green
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