AAVSO International Database

April 10, 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 [V2676 Oph]. They have triggered observations with Swift, JVLA (Jansky Very Large Array), SMA (Submillimeter Array), and high-resolution optical spectroscopy. He is requesting AAVSO observations in support.

April 5, 2012:  John Seach (Chatsworth Island, NSW, Australia) reports his discovery of a variable object in Centaurus on 2012 Apr. 4.765 UT at magnitude 10.8 (6 images (limiting magnitude 11.5) obtained using a DSLR with 50-mm f/1.0 lens).

Seach reports no comet or minor planet was visible at the position, and nothing was seen down to magnitude 11.5 on his survey image taken 2012 Apr. 3.728 UT.

Coordinates: RA 14 25 06  Dec -58 45 36 (2000.0)

April 4, 2012: Bram Ochsendorf (Leiden Observatory, Netherlands) 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 Paranal Observatory in Chile. Ochsendorf and colleagues have already observed V854 Cen at maximum and now need to observe it during a fading episode.

March 28, 2012:  A possible nova in Ophiuchus [V2676 Oph] was announced on the IAU CBAT Transient Objects Confirmation Page (TOCP) page with the name PNV J17260708-2551454. It was discovered by H. Nishimura (Shizuoka-ken, Japan) at unfiltered magnitude 12.1 on 2012 March 25.789 UT on three frames using Canon 200-mm f/3.2 lens + Canon EOS 5D Digital Camera. Spectra suggest that the object is an Fe II-type classical nova.

Coordinates: 17 26 07.01  -25 51 42.69 (J2000.0)

28 March 2012:  A possible nova in Centaurus was announced on the IAU CBAT Transient Objects Confirmation Page (TOCP) page with the name PNV J13410800-5815470 [V1368 Cen]. It was discovered by John Seach (Chatsworth Island, NSW, Australia) at magnitude 9.2 on 2012 March 23.386 UT using a DSLR with 50 mm f/1.0 lens. Spectra indicate that the object is a classical nova.

Nothing was seen by him down to magnitude 11.0 on his survey images taken on 2012 Mar. 16.396 UT.

March 27, 2012:  In the email version of AAVSO Special Notice #270 (Possible Recurrent Nova in the LMC = TCP J04550000-7027150), the discovery magnitude was given as U=10.7. It should have been given as unfiltered magnitude 10.7.

We extend our apologies for the error.

This AAVSO Special Notice was compiled by Elizabeth O. Waagen.

March 27, 2012:  A possible nova in the LMC [Nova LMC 2012] discovered at unfiltered magnitude 10.7 on 2012 March 26.397 UT (name of discoverer not given) was reported on the IAU CBAT Transient Objects Confirmation Page (TOCP). Spectra indicate the object may be a recurrent nova.

J. Hambsch reports that as of March 28.04 UT, the object appears to be fading fast and is at least one magnitude fainter than 24 hours ago.

Coordinates (2000.0):

March 24, 2012:  Most of the information in this Special Notice was announced in IAU CBAT CBET 3054 (Daniel W. E. Green, Ed.). Three independent discoveries of SN 2012aw in M95 are reported:

23 March 2012: The Chandra X-ray satellite observations of the symbiotic variable CH Cyg have been scheduled as part of Dr. Margarita Karovska's (Harvard-Smithsonian Center for Astrophysics) campaign. Please see AAVSO Alert Notice 454 and AAVSO Special Notice #267 for complete details on this observing campaign. The HST observations of CH Cyg have already been made.
 

March 16, 2012: V834 CAR = Nova Car 2012 = TCP J10502000-6406480

Discovered by: John Seach, Chatsworth Island, NSW, Australia

Discovery Magnitude: 10.2 on 3 images with digital SLR, 50 mm f/1.0 lens

Discovery date: 2012 February 26.543 UT

Coordinates: RA 10 50 19.66  Dec. -64 06 46.7 (J2000.0)
Coordinates from A. Oksanen and C. Harlingten (see Note b).