Horse head Nebula

Deep Sky Object in Winter

Horse head Nebula (B&W wide field)

Click on image to enlarge

Date & Time:	Dec 4 2010, from 25:26 to 26:04 JST(+0900)
	Composed 4shots with 12 minutes exposed
Optical:	PENTAX 7.5cm(2.9") ED refractor with a conversion lens (f=360mm, F4.8)
	with IDAS LPS-V4 Light-pollution suppression filter
	Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera:	Canon EOS 550D (Remodeled)
Location:	Ooizumi, Hokuto city, Yamanashi pref.

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

This is another Horse head Nebula image captured wider field than one in previous page. I have picked up only red channel of color image to show you distribution of dimmed nebulosities clearly.
You can see black shadow of the horse head with its head turning right. To be precise, the dark nebula that forms the head of horse has been registered as B33, and a diffused nebula in background has a number of IC434. To say, B33 is thrusting its head into IC434 from the direction of east. And this image tells us that IC434 is spread out toward far west (right in this image) from the Horse head Nebula, the whole of the diffused nebula has a round shape with a diameter of about 2 degrees or so.

Back to previous page

B33 / Dark Nebula, type 4 Ir
R.A.	05h 41m 1.8s (2000.0)
Dec.	-02° 24' 40" (2000.0)
Apparent Size	-
Real Size	N/A
Magnitude	-
Distance	1300 light yrs.
Other IDs	LDN1630

IC434 / Diffused Nebula, type 1 E
R.A.	05h 41m 0.0s (2000.0)
Dec.	-02° 24' 00" (2000.0)
Apparent Size	60×10'
Real Size	22.7×3.8 light yrs.
Magnitude	-
Distance	1300 light yrs.
Other IDs	LBN954

NGC2024 / Diffused Nebula, type 1 E
R.A.	05h 41m 54.0s (2000.0)
Dec.	-01° 51' 00" (2000.0)
Apparent Size	30'
Real Size	11 light yrs.
Magnitude	-
Distance	1300 light yrs.
Other IDs	Sh2-277

NGC2022

Monkey Nebula(NGC2174-5)

			Copyright(c) 2011 by Naoyuki Kurita, All rights reserved.
To top page	To Deepsky in Winter index	Orion