October 29, 2014: The CBAT Transient Object Confirmation Page (follow-up page = http://www.cbat.eps.harvard.edu/unconf/followups/J12215757+0428185.html) reports the discovery of a possible supernova in M61 (NGC 4303) [SN 2014dt] by Koichi Itagaki (Yamagata, Japan) on 2014 Oct. 29.8376 UT at magnitude 13.6 CCD unfiltered.
Coordinates: R.A. 12 21 57.57 Dec. +04 28 18.5 (2000.0)
This object has been submitted to VSX and assigned the name PSN J12215757+0428185. Once it is approved, charts may be plotted using the AAVSO Variable Star Plotter (www.aavso.org/vsp).
At this moment there is no AAVSO sequence, but one will be made available as soon as possible.
Itagaki's discovery image is at http://www.k-itagaki.jp/images/4303.jpg
Confirmation of this object is needed. Please save your images so they may be reduced to the AAVSO sequence once it is available.
Once this object has been added to VSX and an AUID assigned, observations may be submitted to the AAVSO International Database using the name PSN J12215757+0428185. Please be sure to indicate what comparison stars you used.
Many thanks, and good observing.
This AAVSO Special Notice was compiled by Elizabeth O. Waagen.
----------------------------------
SUBMIT OBSERVATIONS TO THE AAVSO
Information on submitting observations to the AAVSO may be found at: http://www.aavso.org/webobs
SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION
A Special Notice archive is available at the following URL:
http://www.aavso.org/special-notice-archive
Subscribing and Unsubscribing may be done at the following URL:
http://www.aavso.org/observation-notification#specialnotices
-------------------------------------------------
Please support the AAVSO and its mission -- Join or donate today:
http://www.aavso.org/apps/donate/