Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J12215513+0428169

PSN J12215513+0428169   2014 01 23.38  *  12 21 55.13 +04 28 16.9  19.0 U    2W   8S  M61       L 0

2014 03 23.38

The discovery date should be March 23.38, 2014, not Jan 23.38. We apologize for the typo.

2014 03 21.256

This possible supernova in M61 was not detected with 8 x 10 min images using a clear filter These data were collected remotely from New Mexico Skies, Mayhill, New Mexico, USA by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/13417586005/

2014 03 21.236

This possible supernova in M61 was not detected with 8 x 10 min images using a clear filter These data were collected remotely from New Mexico Skies, Mayhill, New Mexico, USA by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/13417586005/

2014 04 03.31

WeiKang Zheng & Patrick Kelly report that a R-band image was obtained by Patrick Kelly with the 3-m Shane telescope at Lick Observatory on April 03.31 UT. The possible SN candidate is clearly detected in the image. Due to lack of reference star information, we are unable to estimate the target brightness, a rough guess would be around 20.0 +/- 0.5 mag. An image is posted at: http://astro.berkeley.edu/~zwk/findingchart/PSN_J12215513+0428169_ShaneKast.png