------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2550 2009 May 17 14.02UT 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 ------------------------------------------------------------------- ELEVEN NEW METEOR SHOWERS RECOGNISED P. Jenniskens, Chair of the Task Group on Meteor Shower Nomenclature (IAU Commission 22), adds that the following showers were added to the Working List. In the table below, the solar longitude, R.A., and Decl. are given in degrees for equinox 2000.0; V_g is the geocentric velocity of the meteoroid at the earth, but outside the earth's gravitational field; the span over which the shower is active in degrees of solar longitude. Solar No. Meteor-shower Name long. R.A. Decl. V_g Span 334 Dec. alpha Draconids 256.5 207.9 +60.6 41.6 236-278 335 Dec. chi Virginids 256.7 186.8 - 7.9 67.8 246-266 336 Dec. kappa Draconids 250.2 186.0 +70.1 43.4 240-260 337 nu Eridanids 167.9 68.7 + 1.1 65.9 157-175 338 omicron Eridanids 234.7 60.7 - 1.5 26.9 228-245 339 psi Ursae Majorids 252.9 167.8 +44.5 60.7 240-265 340 theta Pyxidids 249.4 139.0 -25.5 60.1 240-256 341 xi Ursae Majorids 300.6 169.0 +33.0 40.2 297-306 342 Aug. beta Piscids 140.0 346.4 + 1.4 38.3 129-151 343 h Virginids 39.0 204.2 -11.6 18.7 28-44 344 July gamma Draconids 125.3 280.1 +51.1 27.4 122-129 SUPERNOVA 2009db IN ANONYMOUS GALAXY Discovery by CSS of a possible supernova (CBET 1760): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009db Mar. 19.41 14 21 54.63 +26 01 02.0 18.4 0.9"W, 6.3"S A confirming spectrogram with the BTA 6-m telescope on Apr. 4 UT; with the aid of the Supernova Identification code shows it to be a type-Ia supernova, with a spectrum similar to that of SN 1999ee. SUPERNOVA 2009dc IN UGC 10064 Discovery by Puckett Observatory Supernova Search of a possible supernova (CBET 1762): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009dc Apr. 9.31 15 51 12.12 +25 42 28.0 16.5 15.8"W,20.8"N SUPERNOVAE 2009de-2009dk The above designations assigned to discoveries from the Catalina Real-Time Transient Survey 2009 Jan 2 to Apr 1 mag 18 or fainter. SUPERNOVA 2009dl IN ANONYMOUS GALAXY Discovery by the CHASE Project of a possible supernova (CBET 1769): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009dl Apr. 15.13 12 08 07.21 -31 59 25.3 18.8 1.6"W, 6.5"N J. Anderson and N. Morrell, on behalf of the Millenium Center for Supernova Science and the Carnegie Supernova Project collaboration, obtained spectroscopy on Apr. 17.2 UT revealing it is a type-Ia supernova around maximum brightness. SUPERNOVA 2009dm IN MCG +07-24-16 Discovery by Puckett Observatory Supernova Search of a possible supernova (CBET 1773): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009dm Apr. 19.24 11 30 20.14 +44 09 49.2 17.5 15.5"W, 3.8"S Guy M Hurst