Comet Encke on early morning of Nov 6, 2013

Date & Time: Nov 5 2013, from 28:30 to 28:42 JST(+0900)
Composed 7 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...ISO3200, White Balance...Daylight

The comet Encke in that day has reached around the central region of Virgo, positioned about 2.5 degrees southeast of delta Vir. Although the observed elevation of the comet became fairy low, its coma has remarkably concentrated with a brightness of 7th magnitude, I could easily detect its figure through a telescope. This page has provided a monochrome reversed image which can show you an extraordinary dimmed and thin ion tail stretched toward northwest (upper right hand side) direction.
(View angle: 0.5×0.7°)

Encke on early morning of Nov 8, 2013

Encke on early morning of Oct 31, 2013

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