Deep Sky Object in Winter
Sh2-239 (Emission Nebula in Taurus)

Date & Time: Jan 9 2016, from 22:25 to 23:37 JST(+0900)
Composed 8 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium UV/IR cut filter
Auto-guided with Meade LX200 Eqatorial & Pictor 201XT
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO1600

Sh2-239 / Emission Nebula, type 3 E
R.A.04h 31m 21.0s (2000.0)
Dec.+18°07' 00" (2000.0)
Apparent Size5.3×2.5'
Real Size0.7 light yrs.
Magnitude -
Distance460 light yrs.
Other IDsLBN821
Sh2-239 is a minor and compact emission nebula positioned at about 4 degrees NNW from the Aldebaran, alpha Tau. We can find out the nebula in the Hyades apparently, actually the nebula is three times farther than the Hyades.
We can observe the Sh2-239 as an emitted part of the dark nebula of LDN1551 with a T Tauri-tyed embryo star. The brightest region of Sh2-239 is catalogued as the Herbig-Haro object HH102, which has the active jet-structure of the inter-stellar gaseous matter.

Around Sh2-232

Sh2-240 (Simeis147)

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