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THE ASTRONOMER Electronic Circular No 2700      2010 Dec 29 19.24UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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COMET C/2010 X1 (ELENIN)
Leonid Elenin, Russia reports on CBET 2584 his discovery of a comet on
four 240-s unfiltered CCD exposures taken remotely with a 0.45-m f/2.8
astrograph at the ISON-NM observatory near Mayhill, NM, USA, on 2010
Dec. 10.435 UT. After an appeal by the Minor Planet Centre, other
astrometrists have noted a cometary appearance. A. Sergeyev, Ukraine and
A. Novichonok, Russia write that images taken with a 1.5-m f/8 reflector
at the Majdanak Observatory in Uzbekistan on Dec. 11.0 show a
teardrop-shaped, very diffuse coma of diameter 6" and of total magnitude
19.1.
Discovery position:
     2010 UT             R.A. (2000) Decl.       Mag.   Observer
     Dec. 10.41707   11 58 06.29   - 0 34 20.1   19.5   Elenin

The following orbital elements are taken from MPEC 2010-Y24:

T 2011 Sept. 4.4266 TT                                  MPC
q   0.442030             (2000.0)            P               Q
                   Peri.  345.2389      +0.6223884      +0.7824703
                   Node   323.2460      -0.7148102      +0.5581717
e   1.0            Incl.    1.8496      -0.3188715      +0.2760156
>From 65 observations 2010 Dec. 10-24.

The CBAT Observable Comets webpage suggests the comet might reach naked
eye visibility in the second half of 2011 though it will also be near
the Sun.

Further supernovae reported in recent CBETs:

SUPERNOVA 2010js (Boles) See E-Circular E2688

SUPERNOVA 2010jt IN ANONYMOUS GALAXY (Howerton et.al.)
2010jt  Nov  6.57   23 43 41.24  -41 18 46.9  19.0   20.5"E, 29.6"N

SUPERNOVAE 2010ju U3341, 2010jv NGC 2379, AND 2010jw IC2394 (LOSS)
2010ju  Nov 14.43   05 41 55.99  +18 29 51.0  16.8    6.8"E, 19.9"N
2010jv  Nov 14.48   07 27 26.48  +33 48 41.8  16.3    2.8"E,  0.3"N
2010jw  Nov 14.57   08 47 06.91  +28 14 17.4  17.5    0.1"W,  5.4"N

SUPERNOVAE 2010jx, 2010jy, 2010jz, 2010ka, 2010kb (CSS)
2010jx  Oct 28.19   01 19 42.22  +30 24 49.2  19.2    0.9"W,  0.7"N
2010jy  Oct 30.15   23 09 43.58  +05 41 56.2  16.5    6.6"E,  1.6"S
2010jz  Nov 02.40   07 17 15.74  +45 23 03.7  18.0    4.5"W,  1.5"N
2010ka  Nov 07.35   03 26 01.99  -00 49 48.0  19.4    0.6"W,  1.6"N
2010kb  Nov 10.43   08 20 47.41  +35 53 37.5  18.1    0.9"W,  0.7"N

SUPERNOVA 2010kc IN NGC 7624 (LOSS)
2010kc  Nov 15.18   23 20 22.33  +27 18 57.8  17.1    1.9"W,  1.9"N
SN 2008ea (cf. CBET 1432) also appeared in NGC 7624

SUPERNOVAE 2010kd and 2010ke (ROTSE)
2010kd  Nov 14.49   12 08 01.11  +49 13 31.1  17.5    2.1"E,  1.8"S
2010ke  Nov 14.34   00 57 24.62  -00 57 51.4  18.1    0.2"E,  1.9"S

SUPERNOVA 2010kf IN CGCG 391-014 (CSS)
2010kf  Nov 28.33   03 36 03.53  +01 06 04.0  17.5   29.1"E, 12.8"S

Guy M Hurst