Around Sh2-211, Sh2-212

Deepsky Object in Autumn

Around Sh2-211, 212 (Diffused Nebula+Open Cluster in Perseus)

Click on image to enlarge

Date & Time:	Jan 10 2021, from 24:01 to 25:26 JST(+0900)
	Composed 18 shots with 5 minutes exposed
Optical:	TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
	with IDAS LPS-V4 Light-pollution suppression filter
	Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
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)
	Sensitivity...ISO3200

This field has captured celestial objects squeezed in three constellations of Perseus, Auriga, and Camelopardlis. A small reddish diffused nebula in lower left hand side has an ID of Sh2-212, that embeds an open cluster with dozen of faint stars of NGC1624. You can find out the nebula about 7.5 degrees northwest from Capella. It has a diameter of only 5 arc minutes, you can see the cluster and surrounding dimmed nebulosity.
An another compact nebula of Sh2-211 locates about 50 arc minutes northwest of Sh2-212, with an diameter of 2 arc minutes or so. An indistinct dark nebula of B20 is floating around the nebula.
This image has been cropped with an equivalent focal length of 700mm.

Sh2-211 / Diffused Nebula, type 2 E
R.A.	04h 36m 57.8s (2000.0)
Dec.	+50°56' 22" (2000.0)
Apparent Size	2.0'
Real Size	10 light yrs.
Magnitude	10.4
Distance	16800 light yrs.
Other IDs	LBN717

Sh2-212 / Open Cluster+Diffused Nebula, type 1 E
R.A.	04h 40m 24.0s (2000.0)
Dec.	+50° 27' 00" (2000.0)
Apparent Size	5.0'
Real Size	60 light yrs.
Magnitude	10.4
Distance	21500 light yrs.
Other IDs	NGC1624, LBN722

B20 / Dark Nebula, type 2E
R.A.	04h 37m 06.0s (2000.0)
Dec.	+50°59' 00" (2000.0)
Apparent Size	60.0'
Real Size	N/A
Magnitude	-
Distance	N/A
Other IDs	LDN1418

Sh2-207, Sh2-210

vdB1

			Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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