Sziasztok!

Hát ez hihetetlen. Az 596-os (!) sorszámú kisbolygónak 5 ívpercre
kiterjedõ csóvája nõtt! Maga a kisbolygó vagy 60-80 km-es, fényessége 13,5
magnitúdó, így talán a halvány csóva vizuálisan is megpillantható. A
hajnali égen van, így még a telehold elõtt el lehet csípni.

Sry


---------- Forwarded message ----------
Date: Sun, 12 Dec 2010 01:42:25 +0100 (CET)
From: Lucia
To: sky@titan.physx.u-szeged.hu
Subject: CBET 2583: 20101212 : (596) SCHEILA


                                                   Electronic Telegram No. 2583
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
  20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


(596) SCHEILA
      S. Larson, Lunar and Planetary Laboratory (LPL), University of Arizona,
reports that images of the main-belt minor planet (596), taken on Dec. 11.44-
11.47 UT with the 0.68-m f/1.8 Schmidt telescope at Catalina, show the object
to be in apparent outburst with a comet-like appearance, showing a total V
magnitude of about 13.4 and an envelope that extends 2´ north and 5´ west of
the central condensation.  The cometary appearance has been confirmed by other
observers, including R. Kowalski with the Mt. Lemmon 1.5-m f/2 reflector on
Dec. 11.54; H. Sato (Tokyo, Japan) remotely with a 0.25-m f/3.4 reflector at
the RAS Observatory near Mayhill, NM, U.S.A., on Dec. 11.5 (noting a wide and
diffuse tail 1´.5 long in p.a. 280 degrees, with a spike-like tail 45" long
toward p.a. 225 degrees); and K. Yoshimoto (Hirao, Yamaguchi, Japan; forwarded
by S. Nakano, Sumoto), whose unfiltered CCD image on Dec. 11 taken with a
0.16-m f/6.3 reflector shows a coma diameter of 1´.3 and a tail 1´ long in
p.a. 250 deg.  Alex Gibbs, LPL, has looked at recent Catalina images of (596)
taken on 2010 Oct. 18, Nov. 2, Nov. 11, and Dec. 3; he notes that the object
appears essentially stellar in appearance on the first three dates (with the
object´s V magnitude in November being around 14.5 on sets of four co-added
30-s exposures), but that on Dec. 3.4 it shows some slight diffuseness with V
magnitude 13.2 on four 45-s co-added exposures.


NOTE: These ´Central Bureau Electronic Telegrams´ are sometimes
       superseded by text appearing later in the printed IAU Circulars.

                          (C) Copyright 2010 CBAT
2010 December 12                 (CBET 2583)              Daniel W. E. Green