Comet 2013UC10 Catalina on early morning of Dec 8 & 9, 2015


Comet 2013UC10 Catalina with the dawn moon & the Venus (Dawn on Dec 8)

Date & Time: Dec 7 2015, from 28:47 to 28:50 JST(+0900)
Composed 3 shots with 90sec. exposed
Optical: BORG 67FL with a conversion lens (f=210mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 550D (Remodeled)
Location: Kujihama, Hitachi city, Ibaraki pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
Sensitivity...ISO800



Date & Time: Dec 8 2015, from 28:03 to 28:39 JST(+0900)
Composed 12 shots with 3min. 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: Hiraiso, Hitachi-naka city, Ibaraki pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(4256×2832)
Device Size...FX format (36×24mm)
Sensitivity...ISO3200, White Balance...Daylight



Date & Time: Dec 8 2015, from 28:05 to 28:40 JST(+0900)
Composed 12 shots with 3min. exposed
Optical: BORG 67FL with a conversion lens (f=210mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 550D (Remodeled)
Location: Hiraiso, Hitachi-naka city, Ibaraki pref.

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


The comet 2013UC10 Catalina on early morning of Dec 8 and Dec 9 has a 6th magnitude coma, a dimmed ion tail in west, and a dust tail in southeast direction. The first image, taken on dawn of Dec 8, shows you that the comet has closed to the dawn moon and the Venus about 3 degrees in elongation, I could appreciate the Rendez-vous of those three objects in rift between clouds.
  The 2nd image has been cropped with an equivalent f=1400mm. (View angle: 1.47×0.97°)
  The 1st & 3rd images: View angle: 6.07×4.06°


2013UC10 Catalina on early morning of Dec 13, 2015
2013UC10 Catalina on early morning of Dec 5&6, 2015

Copyright(c) 2015 by Naoyuki Kurita, All rights reserved.
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