------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2389 2007 Oct 26 09.00UT 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 ------------------------------------------------------------------- EDITOR'S ABSENCE The editor will be away on a lecture trip and unavailable from today (October 26) and will return late on Sunday October 28. During that time please send routine reports of observations to the usual mailbox. However in the event of a potential discovery please contact Nick James, assistant editor, whose details appear in the front of each issue of the magazine. Please also send a copy of your report to the editors' mailbox with 'URGENT' in the subject line as I may have limited access during the weekend. COMET 17P/HOLMES Precise magnitude estimates are not being quoted to avoid bias but reports from the evening of October 24 and 25 suggest the brightness remains somewhere between magnitude 2-3 and the somewhat unusual appearance is similar to that of a large planetary nebula in a telescope but rather star-like to the naked eye. Reinder Bouma has provided a chart showing the track and comparison star magnitudes which can be found at: http://www.shopplaza.nl/astro/ from which you should select 'comets-charts' and chart 1 of 17P showing the period October 24 to December 13. Please quote 'TK' as the comparison star source when using this chart. SUPERNOVA 2007kd IN MCG +6-21-36 Discovery by Mirko Villi of a possible supernova (CBET 1083): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007kd Sep 23.12 09 25 58.01 +34 37 59.3 16.6 3" E, 12" N SUPERNOVA 2007ke IN NGC 1129 Discovery by J. Chu and W. Li of a possible supernova (CBET 1084): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007ke Sep 24.42 02 54 23.90 +41 34 16.3 18.5 39.1"W, 29.8"S SUPERNOVA 2007kf IN ANONYMOUS GALAXY Discovery by K. Kloehr of a possible supernova (CBET 1085): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007kf Sep 22.93 17 31 31.76 +69 18 40.1 17.0 - - Associated with an anonymous galaxy and 5.17'W, 1.57'S of UGC 10911. Ron Arbour, South Wonston, England, reports that he obtained five unfiltered confirming CCD images of 2007kf beginning at Sept.24.845UT using a 0.4-m f/5 reflector (+ Starlight Xpress camera; limiting mag 19.1), yielding mag 17.2 and position end figures 31s.23,39".8 (offset from apparent host galaxy 2".2 east, 4".9 south). SUPERNOVA 2007kg Discovery by PIKA and relayed by Herman Mikuz, of a possible supernova (CBET 1086): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007kg Sep 22.90 23 58 37.43 +60 59 06.7 17.1 7"E, 6"N Guy M Hurst