Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J13085839-1531041

PSN J13085839-1531041   2011 12 09.8564*  13 08 58.39 -15 31 04.1  12.7 U   17E   6S  N4984     I 0

2011 12 10.5332

Mag.=12.2, R.A.= 13 08 58.42 Decl.=-15 31 04.4 (USNO-B1.0), remotely using a 0.25-m f/3.4 hyperbolic astrograph + unfiltered CCD (SBIG ST-10XME) at the RAS Observatory near Mayhill, NM, U.S.A.(H06). Position and magnitude were measured on an image composed from 3-frames which were taken by each 60-seconds exposure under the limiting magnitude = 16.5. Observer T. Yusa, Osaki, Japan. http://www.palette.furukawa.miyagi.jp/space/images/PSNinNGC4984_111210.jpg

2011 12 10.785

Mag.= 12.8 observed by T. Noguchi, Chiba-ken, Japan. Position end figures 58s.38, 04".2 using 0.23-m f/6.3 Schmidt Cassegrain + unfiltered CCD (BITRAN BT-11E) with 20-s exposure under the limit mag.= 15.5. See an image at http://park8.wakwak.com/~ngc/images/PSNinNGC4984.jpg.

2011 12 10.541

This possible supernova in NGC 4984 was seen with 3 x 15 min images Time: 2011.12.10.541 Astrometry: RA 13 08 58.47 Dec -15 31 04.6 Photometry: 12.5 +/- 0.2 L These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/6492127541/

2011 12 11.513

Followup magnitude: 12.6 +/- 0.2 L These data were collected by Joseph Brimacombe, Cairns, Australia. Link to imin/photostreamage and further information: http://www.flickr.com/photos/43846774@N02/6508600633/