Deep Sky Object in Winter
Sh2-240 (Supernova Remnant in Taurus & Auriga)

Click on image to enlarge

Date & Time: Nov 29 2024, from 22:47 to 24:25 JST(+0900)
Composed 13 shots with 8 minutes exposed
Optical: AF zoom-Nikkor80-200mmF2.8ED (f=135mm, stop: F4.0)
with SIGHTRON Quad BP III filter
Auto-guided with TAKAHASHI EM-200 Equatorial
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -20°C)
Location: Yamatsuri town, Fukushima pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...300


Sh2-240 / Supernova Remnant, type 3 E
R.A.05h 39m 6.0s (2000.0)
Dec.+28° 00' 00" (2000.0)
Apparent Size200×180'
Real Size140 light yrs.
Magnitude -
Distance2600 light yrs.
Other IDsLBN822
You can see a vast, but extraordinary faint supernova remnant of Sh2-240 (Simeis 147) between the constellations of Auriga and Taurus. The remnant has an apparent diameter of over 3 degrees. You can display an emphasized red channel of color image by clicking on a button in upper right hand of this page.
The Sh2-240 is a remnant of supernova that exploded about 200 thousand years ago, and the nebula is extending with a terrific speed yet. Of course we cannot detect the nebula with our naked eyes. It's one of features that the nebula has fine filamentary structures, looks like a very dimmed Veil nebula in Cygnus.
This image has been cropped with an equivalent focal length of 180mm.



Around Sh2-232
Sh2-241

Copyright(c) 2024 by Naoyuki Kurita, All rights reserved.
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