------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2573 2009 Aug 20 15.55UT 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 ------------------------------------------------------------------- V5583 SAGITTARII = NOVA SAGITTARII 2009 No. 3 Further to the note on E-Circular 2570, an independent discovery was reported to the Central Bureau by K. Nishiyama et. al., Japan relaying their detection of the object at magnitude 7.7 on two 60-s unfiltered CCD frames (limiting magnitude 13.3) taken on Aug. 6.494 and 6.495 UT using a 105-mm f/4 lens. Spectroscopy by A. Arai, T.Komatsu, M. Yamanaka, M. Sasada, and R. Itoh (Higashi-Hiroshima Observatory, Hiroshima University) with the 1.5-m KANATA telescope on Aug. 7.63 shows the Balmer lines (H_alpha and H_beta) and Fe II emission lines, with H_alpha showing an asymmetric profile (its FWHM being about 2100 km/s). The object has now been designated a nova with the name V5583 Sagittarii. V2672 OPHIUCHI = NOVA OPHIUCHI 2009 Further to the note on TA E-Circular 2571, the discoverer according to IAUC 9064 is K. Itagaki of Japan who recorded the apparent nova at magnitude 10.0 on unfiltered CCD survey frames taken on Aug. 16.515 UT using a 0.21-m reflector (limiting mag 15). Both Itagaki and Kadota find nothing at this position on the Digitised Sky Survey and Yamaoka finds no object brighter than mag about 14.0 on a ASAS-3 V-band image taken on 2009 Aug. 14.142. A low-resolution CCD spectrogram (range 400-870 nm) obtained by Munari et al. on Aug. 17.87 with a 0.6-m telescope at Varese show H_alpha, H_beta, O I 844.6-nm, and possibly He I 706.5-nm emission lines. They add that this appears to be a highly reddened outburst occurring on a massive white dwarf, not dissimilar from the U-Sco type of recurrent novae, noting that a search of plate archives for missed previous outbursts could be useful. N. Samus and E. V. Kazarovets report that the GCVS team has assigned the designation V2672 Oph to this nova. SUPERNOVA 2009ge IN ESO 101-18 Discovery by the CHASE Project of a possible supernova (CBET 1843): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009ge Jun 11.07 16 56 53.05 -65 57 18.9 16.1 40.5"W, 8.2"S SUPERNOVA 2009gf IN NGC 5525 Discovery by Koichi Itagaki of a possible supernova (CBET 1844): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009gf Jun 15.61 14 15 37.11 +14 16 48.6 16.1 31 "W, 8.5"S Nothing is visible at this position on Itagaki's many past frames (limiting mag 19.0), including the most recent image taken on 2009 June 1.591 (limiting mag 18.5), or on the Digitised Sky Survey. SUPERNOVA 2009gg IN PGC 65919 Discovery by T. G. Tan, Australia of a possible supernova (CBET 1848): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009gg Jun 13.67 21 01 29.91 -52 01 00.2 15.8 1.4"W, 3.4"S Discovery on unfiltered 20-s CCD with a Celestron 23-cm f/10 Schmidt-Cassegrain reflector (+ Artemis ART-285 CCD camera; image scale 2".2/pixel) on June 13.67 and 15.604 UT. Position and magnitude obtained from C. Jacques and E. Pimentel, Brazil, 120-s confirming image of June 15.591UT. Guy M Hurst