Comet 2012X1 LINEAR on early morning of Oct 27, 2013


Date & Time: Oct 26 2013, from 28:27 to 28:41 JST(+0900)
Composed 8 shots with 2min. exposed
Optical: VIXEN 20cm(7.9") VISAC with a conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D700
Location: Kujihama, Hitachi city, Ibaraki pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF (2784×1848)
Device Size...DX format (24×16mm)
Sensitivity...ISO1600, White Balance...Daylight


This image has captured the comet C/2012X1 LINEAR in dawn northeast skies around eastern region of Coma Berenices. The comet had a sudden outburst in this month, drastically brightened from 14th to 8th magnitude. Although a nucleus of coma has at most 10th magnitude in brightness, surrounded by a spherical shell with an apparent diameter of 4 arc minutes. The outward appearance of the comet resembles that of the comet Holmes (17P) which had an outburst in Oct 2007, future change of the comet is paid attention to from now on.
(View angle: 1.05×0.7°)


2012X1 LINEAR on early morning of Oct 31, 2013
2013R1 Lovejoy on early morning of Feb 1, 2014

Copyright(c) 2013 by Naoyuki Kurita, All rights reserved.
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