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THE ASTRONOMER Electronic Circular No 2240      2006 Jun 22 14.46UT
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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VARIABLE OBJECT IN BOOTES
K. Dawson, Physics Division, Lawrence Berkeley National Laboratory,
Berkeley, reports on CBET 546, on behalf of the Supernova Cosmology 
Project that an unusual transient located:
RA 14h 32m 27.42a DEC +33 32' 25.1" (2000)
with a rise time of > 100 days, was discovered in images taken on Feb. 
22 using the Advanced Camera for Surveys (ACS) on the Hubble Space 
Telescope. It was then observed at intervals of 15-25 days
until just after peak magnitude on June 5.

The new variable displayed little or no evolution in colour, and Deep 
ACS reference images show no indication of a host galaxy.

Selected F850LP magnitudes for the new variable:  2006 Jan. 29, > 26.5 
(not visible); Feb. 22, 23.7; May 22, 21.2; June 5,
21.3.  Selected F775W magnitudes for the new variable:  2006 Jan. 29, > 
26.5; Feb. 22, 23.5; May 22, 21.1; June 5, 21.2.
A finding chart can be found at 
http://supernova.lbl.gov/ACSclustersearch/

3C 282
Gary Poyner, Birmingham, reports that the radio galaxy 3C 282 has faded 
by nearly one magnitude in the last two weeks.
Selected observations...
Jun 1.0, 13.5; 5.0, 13.8; 8.1, 14.0; 13.0 14.4
During 2005, this object varied between 12.5-13.0.

SUPERNOVA 2006da
Discovery by R. Quimby of a possible supernova (IAUC 8722):
SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2006da  June 12.41  23 27 48.57  +14 28 27.0  16.6    1.5"W, 4.2"S

COMET 176P/LINEAR = (118401) LINEAR
The Committee on Small Bodies Nomenclature has agreed to name the
comet 1999 RE_70, which has been assigned also the permanent comet 
number 176P, with the same name as the minor planet (118401): LINEAR, 
for the 'Lincoln Laboratory Near-Earth Asteroid Research' survey that 
discovered the object (cf. MPC 56963).

Guy M Hurst