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AAVSO Alert Notice

Alert Notice 400: Nova Sagittarii 2009 Number 3

August 8, 2009
 

Event: Nova in Sagittarius          [V5583 Sgr]

Discovered Independently By:
a. - Koichi Nishiyama, Kurume, Fukuoka-ken, Japan, and Fujio Kabashima, Miyaki-cho, Saga-ken, Japan
b. - Grzegorz Pojmanski, Dorota Szczygiel, and Bogumil Pilecki, Warsaw University Astronomical Observatory, observed by ASAS3

Discovery Date:
a. - Aug. 6.494 and 6.495 UT, confirmed on five frames taken around Aug. 6.494
b. - Aug. 6.182 UT

Alert Notice 401: Monitoring of EX Hya and DQ Her

August 13, 2009
 

Kunegunda Belle, Don Hoard and Steve Howell are observing two cataclysmic variables with Spitzer during the next couple of weeks.  They request ground-based light curves spanning the observation intervals so that they can identify the state each variable is in during the Spitzer visits.

1. EX HYA (12:52:24.20, -29:14:56.0, AUID 000-BBT-323)

The observations for EX Hya are scheduled for:

2009-08-18  19:25:01.1 UT 3.6micron single exposure
2009-08-18  19:26:52.9 UT 4.5micron light curve

Alert Notice 402: Nova in Ophiuchus

August 17, 2009
 

Event: Nova in Ophiuchus     [V2672 Oph]

Discovered By: K. Itagaki (Teppo-Cho, Yamagata, Japan)

Discovery Date: 2009 August 16.515

Position: RA = 17h 38m 19.72s , Dec = -26d 44m 13.7s (+/- 0.6 arcsec
        from L. Elenin, Moscow, Russia, using the Tzec Maun 0.31-m
        Newtonian near Mayhill, NM)

Alert Notice 403: Request for observations of V2105 Oph in support of HST observations

August 30, 2009

 

Dr. Brian Espey (Trinity College, Dublin, Ireland) has requested photoelectric photometry and bright star CCD photometry of the semiregular variable V2105 Oph beginning immediately.  These observations are in support of ultraviolet spectroscopy to be obtained with the Hubble Space Telescope on Wednesday, September 2, 2009.  Observations are requested to continue through Sunday, September 6, 2009.

Alert Notice 404: Supernova 2009ig has brightened

September 21, 2009
 

Event: Type-Ia Supernova 2009ig in NGC 1015 has brightened

Discovered By: I. Kleiser, S. B. Cenko, W. Li, and A. V. Filippenko, University of California (LOSS discovery on unfiltered KAIT images)

Discovery Date: Aug. 20.48 UT

Alert Notice 405: Request for observations of NSV 99 (khi Peg) in support of HST observations

October 2, 2009
 

Dr. Brian Espey (Trinity College, Dublin, Ireland) has requested photoelectric photometry and bright star CCD photometry of the semiregular variable NSV 99 (= khi Peg) beginning immediately.  These observations are in support of ultraviolet spectroscopy to be obtained with the Hubble Space Telescope in late October and late November 2009. Observations are requested to continue through the end of November 2009.

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