AAVSO Alert Notice 458 Multiwavelength Observing Campaign on AE Aqr May 11, 2012 Dr. Christopher Mauche, Lawrence Livermore National Laboratory, and colleagues in Spain and Oman have requested AAVSO observations in support of their upcoming multiwavelength observations of the novalike intermediate polar cataclysmic variable AE Aqr with the Swift satellite, the MAGIC (Major Atmospheric Gamma…
AAVSO Alert Notice 457 Monitoring Nova Oph 2012 for Multiwavelength Observations April 11, 2012 Dr. Michael Rupen (National Radio Astronomy Observatory, Socorro, NM) has informed us that he and his colleagues of the EVLA (Expanded Very Large Array) Nova Team are carrying out a multiwavelength campaign on the Fe II-type nova Nova Oph 2012. They…
AAVSO Alert Notice 456 Monitoring of V854 Cen Requested April 4, 2012 Dr. Bram Ochsendorf (Leiden Observatory, Belgium) has requested monitoring by AAVSO observers of the R CrB variable V854 Cen in support of observations to be made using the XSHOOTER instrument on the Very Large Telescope (VLT) of the European Southern Observatory’s La Silla…
AAVSO Alert Notice 454 Monitoring of CH Cyg Requested for Chandra and HST Observations March 2, 2012 Dr. Margarita Karovska, Harvard-Smithsonian Center for Astrophysics, has requested visual and photometric observations of the symbiotic variable CH Cyg in preparation for and support of Chandra and HST observations scheduled for later in March 2012. Dr. Karovska’s observations…
AAVSO Alert Notice 453 Monitoring of S Dor requested for multiwavelength campaign February 23, 2012 Dr. Noel Richardson, Georgia State University, has requested monitoring of the luminous blue variable (LBV) prototype S Doradus as part of a multiwavelength campaign he is coordinating to study the photosphere of this star. At present the observations planned include:…
AAVSO Alert Notice 452 Simultaneous observations of SU Aur and AB Aur requested for XMM-Newton February 8, 2012 Dr. Hans Moritz Guenther, Harvard-Smithsonian Center for Astrophysics, has requested bracketing and simultaneous observations in support of XMM-Newton x-ray observations of the classical T Tauri star SU Aur and the close-by Herbig Ae star AB Aur scheduled…
AAVSO Alert Notice 450 Request for observations of SDSS J080434.20+510349.2 in support of HST observations October 25, 2011 Dr. Paula Szkody (University of Washington) has requested the help of AAVSO observers in monitoring the WZ Sge-type cataclysmic variable SDSS J080434.20+510349.2 (SDSS0804+51) in support of Hubble Space Telescope ultraviolet spectroscopic observations scheduled for 20:52:40-23:32:35 2011 November…
AAVSO Alert Notice 448 Request for observations of V455 AND in support of HST observations September 12, 2011 Dr. Paula Szkody (University of Washington) has requested the help of AAVSO observers in monitoring the WZ Sge-type cataclysmic variable V455 And in support of Hubble Space Telescope ultraviolet spectroscopic observations scheduled for 11:31:18-15:07:25 2011 September 25…
AAVSO Alert Notice 447 Nova Sco 2011 No. 2 = PNV J16364440-4132340 = PNV J16364300-4132460 September 11, 2011 Event: Nova in Scorpius Nova Sco 2011 No. 2 = PNV J16364440-4132340 = PNV J16364300-4132460 Discovered Independently by: – John Seach (Chatsworth Island, NSW, Australia) – Yuji Nakamura (Kameyama, Mie, Japan) Discovery Date: – Seach: 2011 Sep….
AAVSO Alert Notice 445 Request for monitoring of SS Cygni in support of European VLBI radio observations August 19, 2011 Following their very successful multiwavelength observing campaign on the dwarf nova SS Cygni in 2010 April (see AAVSO Special Notices #204 and 206 at http://www.aavso.org/special-notice-archive and the related information page at http://www.aavso.org/multiwavelength-observations-ss-cygni), Dr. James Miller-Jones…
AAVSO Alert Notice 443 Nova Lupi 2011 August 9, 2011 Event: Nova in Lupus – Nova Lupi 2011 Discovered by: Nicholas Brown, Quinns Rocks, Western Australia [vsnet-alert 13560] Discovery Date: 2011 August 4.73 UT Discovery Magnitude: magnitude 10.2 photographic unfiltered, on two films, using a 135F2 cannon lens and tmax 400 film. Coordinates: R.A. =…
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Aurora Oval (Northern Hemisphere) |
Aurora Oval (Southern Hemisphere) |
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