Sunday, July 13, 2014

New Comet: C/2014 N3 (NEOWISE)

Cbet nr. 3921, issued on 2014, July 13, announces the discovery of a comet (~ magnitude 17) by the  Near-Earth Object Wide-field Infrared Survey Explorer (or NEOWISE; formerly the WISE satellite) team on images taken with the NEOWISE satellite on 2014, July 04.5. The new comet has been designated C/2014 N3 (NEOWISE).

We performed follow-up measurements of this object, while it was still on the neocp. Stacking of 10 unfiltered exposures, 60-sec each, obtained remotely on 2014, July 09.6 from Q62 (iTelescope network - Siding Spring) through a 0.50-m f/6.8 astrograph + CCD + focal reducer, shows that this object is a comet: coma about 15" in diameter elongated toward PA 200 (the comet was about +21 degree above the horizon at the moment of the imaging session).

Our confirmation image (click on it for a bigger version)

M.P.E.C. 2014-N72 assigns the following parabolic orbital elements to comet C/2014 N3: T 2015 Mar. 15.67; e= 1.0; Peri. = 354.49; q = 3.84;  Incl.= 61.73

UPDATE - July 15, 2014

In the image below you can see comet C/2014 N3 on the infrared discovery frame taken by NEOWISE and (on the right) a follow-up image taken by J. Masiero through the 8 meter GEMINI telescope in Chile. (More info on the caption. Click on the image for a bigger version).

Credit: A. Mainzer

by Ernesto Guido, Nick Howes & Martino Nicolini

No comments: