Deep Sky Object in Winter
Sh2-250 & Sh2-251 (Diffused Nebulae in Taurus)

Click on image to enlarge

Date & Time: Nov 15 2025, from 24:03 to 25:47 JST(+0900)
Composed 12 shots with 6 minutes exposed
Optical: BORG 67FL with a conversion lens (f=210mm, F3.4)
with IDAS LPS-D1 light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -20°C)
Location: Tamura city, Fukushima pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...100


Sh2-250 / Diffused Nebula, type 5 E
R.A.04h 40m 09.0s (2000.0)
Dec.+07°18' 00" (2000.0)
Apparent Size10.0×2.5'
Real SizeN/A
Magnitude -
DistanceN/A
Sh2-251 / Diffused Nebula, type 5 E
R.A.04h 32m 59.0s (2000.0)
Dec.+05°57' 39" (2000.0)
Apparent Size15.0×5.0'
Real SizeN/A
Magnitude -
DistanceN/A
Other IDLBN 849
This image shows you extraordinary faint H-alpha emission nebulae positioned at the southern region of Taurus. You can trace about 3.5 degrees west from π3 Ori in a neighboring constellation. Reddish nebulae in upper left-hand side with a size of 10 arc minutes and in lower right-hand side with a span of 15-by-5 arc minutes are Sh2-250 and Sh2-251, respectively. These nebulae are belonging to the Orion-Eridanus Super bubble spread around the western region of Orion, emitting reddish Hα line activated with nearby stars by chance.
Objects around Sh2-250, Sh2-251 Objects around Sh2-250, Sh2-251



Sh2-247
Sh2-253

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