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THE ASTRONOMER Electronic Circular No 2752      2011 Jly 23 14.32UT
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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CATACLYSMICS IN LYRA: USNO-B1.0 1320-0390658 and 1321-0397655
D. V. Denisenko, Space Research Institute, Moscow, Russia, has reported 
in a draft paper for Peremennye Zvezdy, his discovery of an uncatalogued 
cataclysmic variable in Lyra listed in USNO B1 as 1320-0390658 and 
located at:
RA 19h 21m 44.23s DEC +42 04' 41.81" (2000)

Multiple Palomar plates in an overlap area allow an outburst to be 
detected on 1991 Sept 6 and near minimum on 13 further plates. 
Historical images suggest B approx. 20 at minimum with outbursts to 
B=15.2. It may be a dwarf nova of the UGSS type.

Another variable has been found 5' north of the above eruptive, which is 
a star catalogued as USNO B1 1321-0397655. This is located at:
RA 19h 21m 48.93s DEC +42 09' 46.60" (2000).
One outburst was noted in 1993 from R approx. 19 to I=11.8 and may be a 
recurrent nova or UGWZ dwarf nova.

The paper when published should contain images with objects listed for 
identification purposes.

SUPERNOVA 2011ck IN NGC 5425 = PSN J14004624+4826454 (NEWTON)
2011ck  May 12.29   14 00 46.24  +48 26 45.4  15.9  14.8"W,   7.3"N
G. H. Marion: spectrum May 17, type-IIP, 2-3 weeks after explosion

SUPERNOVAE 2011cl-2011dc (CATALINA)
SN       2011 UT        R.A. (2000.0) Decl.       Mag.    Offset
2011cl   Feb.  4.21    8 26 49.16  +20 22 31.8    17.2   3" E, 37"N
2011cm   Apr. 14.47   17 14 19.18  +43 59 55.2    18.1   1" E, 1" N
2011cn   Apr. 24.30   13 55 31.54  - 2 30 00.5    19.0   1" E, 1" N
2011co   Apr. 25.42    9 16 21.65  -23 37 17.4    18.5  26" E, 41"N
2011cp   Apr. 26.17    7 52 32.61  +21 53 29.7    19.5     --
2011cq   Apr. 26.18   12 16 07.15  - 3 34 30.7    18.9   21"W, 18"S
2011cr   Apr. 26.47   22 04 51.77  +12 46 13.0    17.9   16" E,16"S
2011cs   Apr. 27.18   12 08 01.08  +49 13 33.0    18.6     --
2011ct   Apr. 27.33   15 06 34.40  -10 19 36.5    19.1   2" E
2011cu   Apr. 30.20   11 35 10.63  + 1 00 20.9    21.0     --
2011cv   Apr. 30.30   14 33 37.37  -12 02 20.9    19.2   4" E, 14"S
2011cw   May   1.38   14 47 39.55  +51 41 04.7    18.3     1" S
2011cx   May   2.28   12 14 22.16  +33 55 09.5    18.6   1" W
2011cy   May   7.35   14 58 37.10  + 2 20 59.1    20.0     --
2011cz   May   4.23   12 11 24.09  +37 25 52.5    19.2   2" E, 2" S
2011da   May   4.24   12 22 27.91  +37 49 39.5    19.2   2" E, 1" S
2011db   May  12.30   13 49 05.90  +17 14 00.5    17.4 6".4E,17".1S
2011dc   May 14.32    14 58 56.51  +65 54 08.3    17.0  9".5W,2".0S

SUPERNOVA 2011dd IN NGC 3178 = PSN J10160965-1547351 (CHASE)
2001dd  May 15.98   10 16 09.65  -15 47 35.1  15.8:  6.9"E,   6.6"S
J. Anderson and C. Gutierrez, Universidad de Chile and others report 
optical spectroscopy on May 26UT gives good matches to type-IIP 
supernovae about two weeks after explosion.

SUPERNOVA 2011de NEAR UGC 10018 = PSN J15435325+6745425 (NEWTON)
2011de  May 22.30   15 43 53.25  +67 45 42.5  16.7  77"  E,   2.8"N
G. H. Marion: spectrum May 26, type-Ia a few days before maximum


Guy M Hurst