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AAVSO International Database

Special Notice #21: Possible New Object In Tau

October 26, 2006

Dan Green has asked for confirmation of a new object reported to the Central Bureau for Astronomical Telegrams by astronomers at Crni Vrh Observatory of the University of Ljubljana, Slovenia. Here are details:

position (2000): R.A. 03:29:12.26 Dec. +12:50:17.6 (Taurus)

magnitude: ~R magnitude ~14.9 (unfiltered CCD, approx. R magnitude)

date: Oct. 20.0 UT (4 images taken with 60-cm instrument)

Special Notice #1: Exoplanet Transit Campaign for Southern Hemisphere

December 8, 2005

Dr. Greg Laughlin (UCO Lick Observatory/Transitsearch.org) and Dr. David Blank (James Cook University) are conducting a photometric monitoring campaign for exoplanet transits of HD 13445. The windows for possible transit are:

December 11 20:51 - December 12 05:00 (UT)

December 27 14:58 - December 27 23:36 (UT)

HD 1334 is located at RA 02:10:14.4 and Dec. -50:50:0.5 (J2000).

Alert Notice 544: Nova Scorpii 2016 = PNV J17381927-3725077

June 13, 2016

Event: Nova in Scorpius

Discovered by: Hideo Nishimura (Kakegawa, Shizuoka-ken, Japan) (reported by S. Nakano, Sumoto, Japan, via CBET 4285)

Discovery magnitude: 12.4 unfiltered CCD on three 10-s CCD frames, using a 200-mm-f.l. f/3.2 lens with a Canon EOS 5D digital camera

Discovery date: 2016 June 10.629 UT
 
Coordinates (2000.0): R.A. 17 38 19.31  Dec. -37 25 08.7   (from VSX)

Special Notice #417: CH Cygni B and V photometry urgently requested

June 3, 2016: Dr. Margarita Karovska (Harvard-Smithosonian Center for Astrophysics) is urgently requesting B and V photometry of the symbiotic variable CH Cyg from now until at least the end of August. Observations made twice a week are sufficient; time series observations are not needed. Spectroscopy would also be very welcome and appreciated.

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