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Circular No. 7959
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)
SUPERNOVAE 2002ep, 2002eq, 2002er, 2002es, 2002et
The discoveries of several apparent new supernovae have been
reported from unfiltered CCD frames. SNe 2002ep and 2002eq were
reported by W. M. Wood-Vasey et al. from Palomar NEAT images (cf.
IAUC 7953), while the remaining three objects were found on LOTOSS
KAIT images (W. D. Li, B. Swift, and M. Ganeshalingam; cf. IAUC
7906).
SN 2002 UT R.A. (2000.0) Decl. Mag. Offset
2002ep Aug. 6.47 21 57 21.66 - 7 51 24.8 18.7 about 5" W
2002eq Aug. 8.36 21 19 00.19 -16 17 12.7 19.6 about 4" S
2002er Aug. 23.2 17 11 29.88 + 7 59 44.8 17.5: 12".3 W, 4".7 N
2002es Aug. 23.5 3 23 47.23 +40 33 53.5 16.4: 18".8 W, 25".5 N
2002et Aug. 24.3 20 08 31.02 -25 27 37.5 16.5: 2".1 W, 6".8 S
Additional magnitude estimates with the same instrumentation for
each respective object: SN 2002ep, July 13 UT, [20.5; 23, [20.5;
Aug. 7.5, 18.7; 17.4, 19.0. SN 2002eq, July 4, [20.5; 19, [20.5;
18.3, 19.4. SN 2002er in UGC 10743, Aug. 16.2, [19.0:, 24.2,
16.9:. SN 2002es in UGC 2708, Feb. 15.2, [19.0:; Aug. 12.5, 18.5:,
24.5, 16.3:. SN 2002et in MCG -04-47-10, Aug. 2.3, [19.0:, 10.3,
hint; 25.3, 16.5:.
1997 CQ_29
K. Noll and D. Stephens, Space Telescope Science Institute; W.
Grundy, J. Spencer, R. Millis, and M. Buie, Lowell Observatory; D.
Cruikshank, Ames Research Center, NASA; S. Tegler, Northern Arizona
University; and W. Romanishin, University of Oklahoma, report on
confirming observations of the binary transneptunian object 1997
CQ_29 (cf. IAUC 7824), obtained with the Hubble Space Telescope
during June 18.312-18.351, 30.131-30.170, and July 12.152-12.191
UT: "On each date, three 800-s exposures were obtained with the
F814W filter (roughly I band), the target being placed on the PC
chip (0".045 pixel scale) of the WFPC2 camera. The binary was
easily detected on all three dates with a signal-to-noise ratio of
25 or more for each component. The components were separated by an
average of 0".334 (approximately 8 pixels). The position angle
measured from component A to component B was seen to change slowly
from 334 +/- 1 deg on June 18 to 340.7 +/- 0.8 deg on July 12,
confirming orbital motion."
(C) Copyright 2002 CBAT
2002 August 26 (7959) Daniel W. E. Green
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