AAVSO International Database
Alert Notice 391: Rare Outburst of V358 Lyr
Event: Rare outburst of V358 Lyr
Discovered By: Jeremy Shears and Gary Poyner, BAAVSS, from a Bradford Robotic Telescope image. Confirmed by Shawn Dvorak, Rolling Hills Observatory.
Discovery Magnitude: CV=16.11 +/- 0.04
Discovery Date: November 22.917 UT
Alert Notice 392: Supernova 2008hy in IC 334
Independently obtained spectroscopy of the supernova by Dennefeld et al.
Alert Notice 393: Monitoring for a planetary transit of HD 80606
Alert Notice 394: Nova in the Large Magellanic Cloud
Event: Nova in The Large Magellanic Cloud [N LMC 2009]
Discovered By: W. Liller (Vina del Mar, Chile)
Discovery Date: 2009 February 05.067 UT (JD 2454867.567)
Discovery Magnitude: m=10.6 (Tech Pan photograph, unfiltered)
Position: RA = 05h 40m 44.20s , Dec = -66d 40m 11.6s (J2000; H. Bond et al.)
Charts: Finder charts for this object may be plotted by entering the coordinates above into VSP: http://www.aavso.org/vsp
Alert Notice 395: Nova in Sagittarius
Event: Nova in Sagittarius [subsequently named V5581 Sgr]
Discovered By: K. Nishiyama (Kurume, Fukuoka-ken, Japan) and F. Kabashima (Miyaki-cho, Saga-ken, Japan)
Discovery Date: 2009 April 21.711 UTC (JD 2454943.211)
Discovery Magnitude: m=11.7 (unfiltered)
Position: RA = 17h 44m 08.44s , Dec = -26d 05m 48.7s (from K. Kinugasa, S. Honda, and O. Hashimoto, Gunma Astronomical Obs.)
Alert Notice 396: Nova in Centaurus
Event: Nova in Centaurus
Discovered By: G. Pojmanski, D. Szczygiel, and B. Pilecki (Warsaw University Astronomical Observatory)
Discovery Date: 2009 May 08.235 UT
Discovery Magnitude: m=8.235 (ASAS V)
Position: RA = 13h 31m 15.76s , Dec = -63d 57m 38.5s (from L. Elenin, Moscow, Russia, using the Tzec Maun-Pingelly 0.15-m refractor near Perth, Australia)
Alert Notice 397: Request for optical photometry of the bright X-ray binary V884 Sco (4U 1700-377)
Dr. Jerome Orosz (SDSU) has requested the assistance of southern bright star observers in observing the high-mass X-ray binary star V884 Sco (== 4U 1700-377). Orosz and collaborators are attempting to measure the mass of the compact object to clarify whether the object is a black hole or a neutron star. Optical photometry of the ellipsoidal variations of V884 Sco will be used in conjunction with optical spectroscopy to be performed at Las Campanas in mid-July and early August 2009 to measure the dynamical properties of the system.
Alert Notice 398: Eclipse of epsilon Aurigae
The bright, long-period, eclipsing binary star epsilon Aurigae is predicted to begin its next eclipse late July or early August of 2009. The AAVSO is participating in a global campaign to record this eclipse as part of the International Year of Astronomy 2009 celebrations, organized by the Citizen Sky project (http://www.citizensky.org). Epsilon Aurigae is now past solar conjunction and has reappeared as a morning object.
Alert Notice 399: Nightly monitoring of AG Dra in support of HST calibration observations
Edward Smith (STScI) has requested nightly photometric monitoring of the symbiotic star AG Draconis during the period 2009 August 2, and tentatively scheduled to continue through mid-September 2009.