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THE ASTRONOMER Electronic Circular No 2436      2008 Apr 09 10.23UT
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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NR TRIANGULI AUSTRALIS = NOVA TRIANGULI AUSTRALIS 2008
Nicholas J. Brown, Western Australia, reports on IAUC 8931 his discovery 
of a possible nova (mag 9.2) on two T-Max 400 films taken on Apr. 1.73 
UT with a 135-mm f/2 camera lens; the variable is located approximately 
at:
RA 16h 18m 47s DEC -60 27' 57" (2000).
Brown adds that no star is visible at this position on his film of Mar. 
16.76 (limiting mag 11.5), and nothing is visible to mag about
14 in this position on the Digitised Sky Survey.  A catalogued star of 
mag 13.5-14.0 is visible to the northwest of the variable. Brown's 
visual observation of the variable on Apr. 2.74 yields mag approximately 
9.0; he also provides visual mag 10.1 on Apr. 4.695. Following an appeal 
from CBAT, A. Amorim, Brazil, reports the following visual magnitude 
estimates for the variable:  Apr. 3.158 UT, 9.3; 4.097, 9.9.

E. Guido and G. Sostero report that their remote imaging with a
0.31-m f/9 reflector of the Remote Astronomical Society (RAS) located 
near Moorook, Australia, on Apr.4.86 yields the following precise 
position: 16h 18m 48.21s DEC -60 27 '48.9" (2000).

N. N. Samus, Institute of Astronomy, Russian Academy of
Sciences, advises that this nova is being assigned the variable-star 
designation NR TrA.

S/2008 (41) 1
A. R. Conrad, W. M. Keck Observatory (WMKO) et. al., report on IAUC 8930 
the discovery on Mar. 28.5 UT of a satellite of minor planet (41) Daphne 
from more than 100 images with the 10-m Keck II telescope  on Mauna Kea. 
On Mar. 28.5032, the satellite was at separation 0.56" (projected 
separation 443 km) and position angle 277 deg.  The satellite was 
observed to be moving with the primary, as they travelled 80" across the 
background sky over the 3 hours. The significant (0".3)orbital motion of 
the satellite observed during this time implies an orbital period near 
1.6 days. The H-band brightness ratio is estimated at about 10 mag, 
giving an estimated diameter of the satellite of < 2 km; if so, this 
system has the most extreme size ratio known.

SUPERNOVA 2008be IN NGC 5671
Discovery by LOSS of a possible supernova (CBET 1303):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008be  Mar. 12.46  14 27 48.71  +69 41 50.8  18.5    34.7"E,12.4"N
Additional KAIT magnitudes: 2007 July 26.20 UT, [20.0; 2008 Feb. 15.48, 
18.6 (marginal detection); Mar. 16.50, 18.4

SUPERNOVA 2008bf IN NGC 4055/4057
Discovery by LOSS of a possible supernova (CBET 1307):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008bf  Mar. 18.41  12 04 02.90  +20 14 42.6  16.8    20.1"E,46.2"N
Additional KAIT magnitudes for 2008bf, which is located in between the 
interacting galaxy pair NGC 4055 and NGC 4057 (the above offset is 
relative to NGC 4055):  Mar. 4.42 UT, [18.9; 19.42, 16.6.

SUPERNOVA 2008bg IN ANONYOUS GALAXY
Discovery by ROTSE of a possible supernova (CBET 1308):
SN      2008 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2008bg  Mar.  5.34  12 51 11.89  +26 17 40.2  18.7     0.6"E, 2.4"N

Guy M Hurst