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THE ASTRONOMER Electronic Circular No 2462     2008 Jly 10 19.23UT
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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V2468 CYGNI
U. Munari and A. Siviero, Istituto Nazionale di Astrofisica, Padova
Astronomical Observatory et. al., ANS ("Asiago Novae and Symbiotic 
stars") collaboration, report on CBET that the nova V2468 Cyg is 
experiencing a large re-brightening during its current advanced 
evolution.  Close to maximum brightness, on 2008 Mar. 12.10UT, the nova 
was measured at V = 8.09, B-V = +0.94, V-R_c = 0.71, V-I_c
= +1.43. Since then, it has been showing a normal decline with 
superimposed rapid and irregular fluctuations of a few tenths of a 
magnitude in amplitude.  A flat minimum in brightness was reached during 
the period June 8 to 17, when the nova was shining at V = 12.44, B-V = 
+0.44, V-R_c = +1.39, V-I_c = +1.14. Since then, its has been steadily 
re-brightening, reaching V = 11.64, B-V = +0.32, V-R_c = +1.18, V-I_c = 
+1.17 on July 2.91, thus with no significant colour change associated 
with the re-brightening.

Editor: The off-line version of the light curve of 'The Astronomer' due 
to be updated to the TA WWW site shortly, is now based on 63 
estimates/measures. The visual estimates suggest a temporary minimum of 
about magnitude 12.8 on June 7-10 but brightening to magnitude 12.2 by 
July 4. The equivalent CCDV measures appear to have been running about 
0.4 magnitudes brighter throughout.

SUPERNOVA 2008dj IN ANONYMOUS GALAXY
Discovery by D. Sand, Steward Observatory et. al., of a possible 
supernova (CBET 1410):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008dj  May   3     15 19 40.74  +06 16 53.0  21.8     1.3"E, 1.4"S
LDSS3 spectroscopy June 5 shows it to be a type-IIP supernova

SUPERNOVA 2008dk IN ANONYMOUS GALAXY
Discovery by D. Sand, Steward Observatory et. al., of a possible 
supernova (CBET 1410):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008dk  May   7     14 56 13.33  +18 51 14.1  19.6     0.5"W, 0.4"S
A Blue- Channel Spectrograph on the MMT (BCS) spectrum obtained on June 
10 shows it to be a normal type-Ia supernova at z = 0.07 and around 20 
days past maximum.

SUPERNOVA 2008dl IN ANONYMOUS GALAXY
Discovery by D. Sand, Steward Observatory et. al., of a possible 
supernova (CBET 1410):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008dl  May  14     15 19 30.37  +48 53 56.8  22.2
BCS spectroscopy on June 10 shows it to be a normal type-Ia supernova at 
z = 0.31 and 5-10 days past maximum

SUPERNOVA 2008dm IN ANONYMOUS GALAXY
Discovery by D. Sand, Steward Observatory et. al., of a possible 
supernova (CBET 1410):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008dm  Jun   3     11 43 23.16  +46 04 58.8  20.6     0.8"W, 2.3"S
BCS spectroscopy on June 10 shows 2008dm to be a normal type-Ia 
supernova at z = 0.22 and within about 7 days after maximum.

Guy M Hurst