------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2290 2006 Dec 18 12.55UT 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 ------------------------------------------------------------------- OT_J055718++683226: DWARF NOVA IN CAM? Wolfgang Kloehr, Germany reports a possible new object, mag 15.2CR at: RA 05h 57m 18s DEC +68 32' 26" (2000) recorded on 2006 Dec 16 at 03h54m58sUT as part of a composite of seven frames using a 0.21-m f6.3 telescope. The object appears on each co-added frame. Image and data are here: http://www.dsi-astronomie.de/New%20object%20near%20ugc3379.htm The weak progenitor object GSC2.2 N31020007187 is of class 3 = non star. Hiroyuki Maehara, Japan has reported confirmation of the possible uncatalogued dwarf nova. He obtained V and B magnitudes of this object as follows: 2006 Dec 17.62573UT, 14.95V; 17.62839UT 15.11B. A USNO B1 star is located close to this object: USNO-B1.0 1585-0088462 RA=05 57 18.45 Dec=+68 32 26.9 B1=19.04 R1=19.23 A ROSAT X-ray source 1RXS J055722.9+683219 is located at about 0.4 arcmin east from this object. David Boyd, West Challow, England was able to observe this object on 2006 Dec 17 (17.50-19.57UT) using unfiltered CCD photometry on a 0.35m SCT before clouds intervened. It showed superhump-like modulations with an amplitude of 0.2 magnitudes and a period, according to Peranso, of 0.052+/-0.007days. The mean magnitude was approx 14.85 based on an ensemble of 4 GSC stars pending proper calibration of the field. It appears to be another UGSU type dwarf nova. Using Astrometrica and USNO-B1.0 David obtained the following mean position (with std errors) from five of my images taken on 2006 Dec 17 between 18.42 and 18.47UT: RA 5:57:18.468 ±0.003 Dec 68:32:27.01±0.02 Guy M Hurst