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IAUC 7907: P/2002 JN_16; 1ES 1959+650; 2000fv

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                                                  Circular No. 7907
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 JN_16 (LINEAR)
     An apparently asteroidal object reported by LINEAR (discovery
observation given below), designated 2002 JN_16, and having an
unusual orbit (e.g., MPEC 2002-J42) has been found by C. A.
Trujillo, California Institute of Technology, to be cometary (coma
extended 10"-15" from the nuclear condensation in p.a. 270 deg) on
images taken on May 17.2 UT as part of a program by M. Brown and
himself with the 1.2-m Schmidt telescope at Palomar.  At Trujillo's
request, J. Tonry obtained images of 2002 JN_16 through clouds with
the University of Hawaii 2.2-m reflector at Mauna Kea on May 22.35
that show a similar appearance and m_1 = 17.2.

     2002 UT             R.A. (2000) Decl.        m2
     May   9.27712   15 33 09.60   -18 25 36.8   18.0

The available astrometry and the following orbital elements appear
on MPEC 2002-K38.

     T = 2002 July 28.343 TT          Peri. =  39.768
     e = 0.49107                      Node  = 230.110   2000.0
     q = 1.79810 AU                   Incl. =  11.560
       a =  3.53312 AU     n = 0.148411     P =   6.64 years


1ES 1959+650
     D. Horns and A. Konopelko, Max-Planck-Institut fuer Kernphysik,
Heidelberg, report, on behalf of the HEGRA collaboration, that
follow-up observations of 1ES 1959+650 (cf. IAUC 7903), obtained
with the HEGRA system of Cherenkov telescopes at La Palma on May
17-21, show the object in outburst with the overall flux above 1
TeV (2.4 x 10**26 Hz) increasing from (1 +/- 0.5) x 10**-11 photon
cm**-2 s**-1 to a peak value of (3.5 +/- 0.4) x 10**-11 photon
cm**-2 s**-1 during May 19.1-19.2 UT.  Within the individual nights,
a flux increase with a doubling time of < 1 hr was observed.
Observations at other wavelengths are encouraged.  HEGRA will
continue observations on June 2 with daily monitoring.


SUPERNOVA 2000fv IN MCG -04-35-11
     Corrigendum.  On IAUC 7906, line 4, *for*  4".2 east  *read*
4".2 west

                      (C) Copyright 2002 CBAT
2002 May 22                    (7907)            Daniel W. E. Green

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