Comet 2013UC10 Catalina on early morning of Jan 9 to 11, 2016


Date & Time: Jan 10 2016, from 27:00 to 27:23 JST(+0900)
Composed 8 shots with 3min. exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium UV/IR cut filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
Sensitivity...ISO3200



Change for 2 days (f=530mm prime)

Date & Time: (Upper) Jan 8 2016, from 27:46 to 28:20 JST(+0900), 3min.×12shots
(Middle) Jan 9 2016, from 28:21 to 28:58 JST(+0900), 4min.×10shots
(Lower) Jan 10 2016, from 26:09 to 26:54 JST(+0900), 4min.×12shots
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P2-FF light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Canon EOS 550D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

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



Change for 2 days (f=324mm prime)

Date & Time: (Upper) Jan 8 2016, from 27:44 to 28:18 JST(+0900), 3min.×12shots
(Middle) Jan 9 2016, from 28:19 to 28:56 JST(+0900), 4min.×10shots
(Lower) Jan 10 2016, from 26:16 to 26:52 JST(+0900), 4min.×10shots
Optical: BORG 67FL, with a conversion lens (f=324mm, F4.8)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Canon EOS 6D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Device Size...35×24mm, Sensitivity...ISO3200


This page reviews the chased results of the comet 2013UC10 Catalina for three nights. For this 48 hours, the comet has moved northwards about 5 degrees between Bootes and Canes Venatici.
A 5th magnitude coma has a visual diameter of over 15 arc minutes. And I could record dimmed distributions of the 5 degrees-stretched ion tail to WNW and the 0.5 degrees-stretched dust tail in south. The dust tail, which was stretched to ESE as an anti-tail, has changed its direction gradually to southward; the third set of images can show you that the direction has slightly changed westerly for this three nights.
The activities of ion tail look calm compared with last month because the comet has started to go away from the sun, but these images show that the most striking ion tail could be observed at last day of early morning of Jan 11.
  The 1st image has been cropped with an equivalent f=1800mm. (View angle: 0.70×0.47°)
  The 2nd image has been cropped with an equivalent f=570mm. (View angle: 2.24×1.33°)
  The 3rd image has been cropped with an equivalent f=370mm. (View angle: 5.53×3.35°)


Spectrun of 2013UC10 Catalina on early morning of Jan 9, 2016
2013UC10 Catalina on early morning of Jan 4&5, 2016

Copyright(c) 2016 by Naoyuki Kurita, All rights reserved.
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