Comet Wirtanen on Mar 8, 2008


Date & Time: Mar 8 2008, from 19:03 to 19:19 JST(+0900)
Composed 4shots with 5 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon with a conversion lens (f=742mm, F4.6)
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Fujifilm FinePix S2Pro
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto



f=200mm telephoto (Comet Wirtanen & The Pleiades)

Date & Time: Mar 8 2008, from 19:02 to 19:19 JST(+0900)
Composed 4shots with 5 minutes exposed
Optical: AF zoom-Nikkor ED f=80-200mmF2.8 (f=200mm, Aperture: F2.8)
Auto-guided with TAKAHASHI JP Equatorial
Digital Camera: Nikon D80 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...12bit CCD-RAW, converted to 16bit TIFF(3872×2592)
CCD Sensitivity...ISO800


The comet Wirtanen in that day has been positioned just 4 degrees north of the Pleiades, I can take these two objects only with a telephoto lens. The coma has a coma with its brightness of about 9th magnitude, almost same with that in last week.


Wirtanen on Apr 5, 2008
Wirtanen on Mar 1, 2008

Copyright(c) 2008 by Naoyuki Kurita, All rights reserved.
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