Release-Note for uploaded image

Brief Description   Three naked-eye comets observed in 2013 have paralleled, Comet PanStarrs (C/2011L4), ISON (C/2012S1), and Lovejoy (C/2013R1) from left to right. In particular the comet ISON was expected to be a great comet in Dec 2013, but unfortunately collapsed and disapeared in passage of the perihelion.

Photography Condition
(Comet PanStarrs)
Date & Time... May 16 2013, from 18:54 to 18:55 JST(+0900), composed 6shots with 8sec. exposed
Optical... TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
   with IDAS LPS-P2-FF light-pollution suppression Filter
   Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera... Canon EOS 600D (ERemodeled)
   (ISO1600, recorded in 14bit CCD-RAW format)
Location... Ooizumi, Hokuto city, Yamanashi pref.

(Comet ISON)
Date & Time... Nov 13 2013, from 28:15 to 28:38 JST(+0900), composed 12shots with 2min. exposed
Optical... VIXEN 20cm(7.9") VISAC + reducer (f=1278mm, F6.4)
   with BaaderPlanetarium Moon&Skyglow Filter
   Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera... Canon EOS 600D (ERemodeled)
   (ISO3200, recorded in 14bit CCD-RAW format)
Location... Kujihama, Hitachi city, Ibaraki pref.

(Comet Lovejoy)
Date & Time... Dec 7 2013, from 28:34 to 29:09 JST(+0900), composed 12shots with 3min. exposed
Optical... TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
   with IDAS LPS-P2-FF light-pollution suppression Filter
   Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera... Canon EOS 550D (ERemodeled)
   (ISO1600, recorded in 14bit CCD-RAW format)
Location... Ooizumi, Hokuto city, Yamanashi pref.