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Special Notice #230: Nova Sagittarii 2011 = PNV J17474639-2335112 [V5587 Sgr]

January 31, 2011: Central Bureau for Astronomical Telegrams Electronic Telegram No. 2644 (CBET 2644, Daniel W. E. Green, ed.) announces the discovery by Hideo Nishimura, Miyawaki, Kakegawa, Shizuoka-ken, Japan (reported by S. Nakano, Sumoto, Japan), of a nova [V5587 Sgr] in Sagittarius on 2011 Jan. 25.86 UT at unfiltered magnitude 11.2 on two 15-s CCD frames with limiting magnitude 12.5; Nakano measured magnitude 11.4 +/- 0.6 on Nishimura's frames.

Monday System Maintenance

This Monday, 31 January 2011, at 12:00ET (17:00UTC) the AAVSO Website will be down for one hour to look into the installation of a Wide Area Network Router which, if successful, will combine the two internet feeds we have here at HQ into one which will allow us to seamlessly increase both our incomming and outgoing data rates.

Any questions or concerns can be sent to Doc Kinne at rkinne @ aavso.org.

Special Notice #229: Outburst of FS Aurigae

January 24, 2011: Further to AAVSO Alert Notice 428 (2010 Nov 30), the dwarf nova FS Aurigae appears to be in outburst.  The outburst was detected by P. Lake (Wonga Park, Victoria, Australia) at V=14.332 on 2011 Jan 24.0902 (JD 2455585.5902), and confirmed shortly after by R.

Trivia Leaderboards Added

We've created leaderboards for the Centennial Trivia Challenge! Check them out to see how people are doing. Don't forget to answer today's question, either!

Special Notice #228: Supernova 2011K in anonymous galaxy is Type-Ia pre-maximum

January 14, 2011: We have been informed by the Central Bureau for Astronomical Telegrams (CBET 2636, Daniel W. E. Green, Ed.) that A. J. Drake, California Institute of Technology, et al. report a Catalina Real-Time Transient Survey discovery of a supernova in a faint anonymous galaxy in Catalina Sky Survey unfiltered images on January 13.19 UT at magnitude 15.1.

Coordinates: 04:45:30.38  -07:20:52.7  (J2000.0)

Offset: 2" South of the galaxy center

Alert Notice 429: Photometry requested for three "Vestoid" Near-Earth Objects

January 8, 2011: Dr. Michael David Hicks (Jet Propulsion Laboratory) contacted the AAVSO requesting precision 
photometry of three solar system objects in support of NASA's DAWN mission to Vesta.  These objects, called 
"Vestoids", are near-Earth objects with similar reflectance spectra to Vesta itself, suggesting they may be fragments 
of that larger body. Broad-band photometry may help constrain object sizes and compositions.

AAVSO Newsletter 47 now online

AAVSO Newsletter for January 2011

http://www.aavso.org/aavso-newsletter

Pages

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