B 33 (LDN 1630) aka (the "Horsehead") Dark Nebula in Orion

Located at: RA 05 hours 41 seconds 02 seconds, Dec -02 degrees 27 minutes 40 seconds

Size: 6.0' x 4.0' Magnitude: -- Class: 4 Ir

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Red (Hoya 25A) filter, 380 minutes (38 x 10 minute subs), 02/14/15/2007

Processing:

CCDStack 1.1, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes:

This image replaces a 96 minute red filtered Track & Accumulate image from 02/24/2006.

See the 14.5" version. See here for a link to my 120 minute 14.5" f5 Newtonian reflector hypered Tech Pan film image of this object.

Description from the on-line Edward Emerson Barnard "A photographic Atlas of Selected Regions of The Milky Way":

 
Dark Object
33
α (2000)
5h 40m 53s
δ (2000)
-2 27
Galactic Coordinates
207, -17
Description
Dark mass, diam. 4, on nebulous strip extending S from ? Orionis (see Ap. J., 38, 500, 1913, and Plate XX).