C/2012 V2 (LINEAR) was discovered by the LINEAR survey using a 1.0-m f/2.15 reflector from Socorro, NM.
Their moving object detection proedure is not visually inspected by members of the LINEAR team, so cometary appearance at first was not detected. On the basis of the high NEO score it was posted on the NEO Confirmation Page under the temporary designation CE10854, and subsequently it was confirmmed as comet by several other CCD astrometrists.
An alert by Rolando Ligustri from the T3 project brought this target under my attention, and I was able to image it under good sky and seeing conditions on Nov. 07.9, with a 0.38-m f/6.8 reflector + CCD. Its cometary feature was obvious, with a coma 12″ wide elongated in PA around 90°.
Results were published in CBET 3290 (subscription required) and astrometry, together with preliminary parabolic orbital elements and Oct. 30 prediscovery data from MASTER-II Observatory, Blagoveshchensk, Russia) in MPEC 2012-V58.
Ligustri image from CAST Observatory, Talmassons – code 235 (Thanks Rolando!):