Comet 2011L4 PanSTARRS on Mar 11, 2013


f=350mm prime focus

Date & Time: Mar 11 2013, from 18:34 to 18:35 JST(+0900)
Composed 6 shots with 2 second exposed
Optical: miniBORG 60ED (f=350mm, F5.8)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 600D (Remodeled)
Location: Tokai vil., Ibaraki pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
Sensitivity...ISO1600



f=200mm telephoto lens

Date & Time: Mar 11 2013, 18:31 JST(+0900)
Composed 6 shots with 1.6 second exposed
Optical: AF zoom-Nikkor ED 80-200mmF2.8 (f=200mm, Aperture: F2.8)
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D700
Location: Tokai vil., 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


I could observe the comet 2011L4 PanSTARRS in that day for about 15 minutes longer than previous day (Mar 10), capture a clear figure of comet. The first and second images have been displayed by turning celestial north direction and the zenith upward, respectively. Although I could somehow detect the comet with a portable binocular, the haze in lower sky was obscuring the comet strongly. I can estimate a brightness of the coma as the 1st magnitude or so, and the comet has a dust tail with a length of 15 to 20 arc minutes estimated from the image.



2011L4 PanSTARRS on Mar 14, 2013
2011L4 PanSTARRS on Mar 10, 2013

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