Comet 2013R1 Lovejoy on early morning of Dec 14, 2013


Left: f=530mm prime, Right: f=1278mm prime

Date & Time: (Left) Dec 13 2013, from 27:53 to 28:21 JST(+0900), 3min. ×10
(Right) Dec 13 2013, from 28:40 to 29:02 JST(+0900), 3min. ×8
Optical: (Left) TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P2-FF light-pollution suppression filter
(Right) 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: 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...(Left)ISO1600, (Right)ISO3200




f=135mm Telephoto (Comet Lovejoy & Hercules Cluster M13)

Date & Time: Dec 13 2013, from 28:40 to 29:01 JST(+0900)
Composed 8 shots with 3min. exposed
Optical: AF zoom-Nikkor ED 80-200mmF2.8 (f=135mm, F4.0)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 600D (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 2013R1 Lovejoy in that day has positioned at 1.5 degrees WSW of zeta Her, observed the rendez-vous with the Hercules cluster of M13. The ion tail is evolving day by day toward its passage of perihelion in end of Dec 2013, a wide field image shows that the tail has stretched in north with a length of over 5 degrees and widely spread in the tip. Around the coma, you can detect several uneven "bend" parts that indicates the ionized compositions were emitted irregularly.
  The 1st image: View angle: 1.5×2.3°, 0.63×0.94°
  The 2nd image: View angle: 6.3×9.4°


2013R1 Lovejoy on early morning of Dec 29, 2013
2013R1 Lovejoy on early morning of Dec 7 & 8, 2013

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