Deep Sky Object in Winter
Orion-Eridanus super bubble
(Sh2-245, Supernova remnant in Taurus to Eridanus)

Date & Time: Jan 3 2016, from 21:32 to 23:15 JST(+0900)
Mosaic of 3 flames of 3min.×10shots
Optical: BORG 60ED, with a conversion lens (f=245mm, F4.1)
with IDAS LPS-P1 Light-pollution suppression 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

Sh2-245 / Supernova remnant, type5 E
R.A.(Rough position)04h 01m (2000.0)
Dec.(Rough position)+02°45' (2000.0)
Apparent Sizeover 900×30'
Real Size -
Magnitude -
Distance680 light yrs.
Other IDsLBN 839
Sh2-245 is an extraordinary dimmed emission nebula lying western Taurus towards northern Eridanus. This image has captured a span of about 8×15 degrees, shows that the Sh2-245 is a stripe-shaped nebula with a length of over 20 degrees in north-south direction. The nebula is a part of bow-shock of the "Orion-Eridanus super bubble" formed by plural supernova explosions occurred around Orion. With the ultraviolet radiation from the Orion OB1 association, the nebula is ionized and emitting reddish H-alpha light. You can see that lower glimmering molecular clouds are floating in almost all field of this image and intertwining with Sh2-245 elaborately.

Jump to Wide field around the Orion-Eridanus super bubble



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