Deep Sky Object in Winter
Wide field around Orion-Eridanus super bubble
(Sh2-245, Supernova remnant in Taurus to Eridanus)
|Date & Time: ||Oct 30 2016, from 22:38 to 24:33 JST(+0900)
|Mosaic of 2 flames of 4min.×12shots|
|Optical: ||AF zoom-Nikkor ED 80-200mmF2.8 (f=80mm, Aperture: F2.8)
|with Astronomik CLS-CCD filter|
|Auto-guided with Kenko SKYMEMO Equatorial
|Digital Camera: ||Canon EOS 6D (Remodeled)
|Location: ||Furudono town, Fukushima pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)|
|Device Size...35×24mm, Sensitivity...ISO3200|
This wide field image with span of 22.4° in east west and 26.5° in north south has captured almost whole figure of the Orion-Eridanus super bubble (Sh2-245).
A border between Taurus and Eridanus is crossing at center of this image horizontally. Left and right flames show you a colored and a reversed red-channel images, respectively.
|Sh2-245 / Supernova remnant, type5 E|
|R.A.(Rough position)||04h 01m (2000.0)|
|Dec.(Rough position)||+02°45' (2000.0)|
|Apparent Size||over 900×30'|
|Real Size|| -|
|Distance||680 light yrs.|
|Other IDs||LBN 839|
Actually major region of the Sh2-245, stretched part in north south direction as displayed in previous page, has further extended nebulosity in southern part which has been divided
in east and west directions and greatly curved. Maybe you can detect that the whole shape of Sh2-245 looks like a cursive letter of "i".
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