Sharpless 2-264 (Sh2-264) is a very large emission nebula (including the open cluster Collinder 69 (CR 69) in Orion.

Sometimes called the Lambda Orionis Nebula, it spans an enormous 8° of sky in northern Orion and has a very low surface brightness.
This image actually only shows the northern part of the nebula.

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Image data

Object info
Name SH2-264
Type Emission nebula
Constellation Orion
Right ascension 05h 35m 12s
Declination +9° 56′ 00″
Distance 1.300 ly
Other designations Cederblad 54
Image info
Image date Nov. 28, 2011
Light frames 23x 6 min. UHC-S unbinned
Total integration 2h 18m
Dark frames 10x
Flat frames 10x p. filter unbinned, created with an A3 size Posterpoweruk flatfield panel
Bias frames 10x
Software used CCDOps, CCDSoft, ImagesPlus, Photoshop CS4
Processing CCDOPS was used for focussing. Image Acquisition was done using CCDSoft.
All separate frames were calibrated, aligned and stacked in MaxIm DL5 Pro.
Photoshop CS4 was used for further processing – curves adjustment, levels adjustment, etc.
Noel Carboni’s toolset was used as well (Local Contrast Enhancement, Deep Space Noise Reduction)
(L)RGB combine was done in Photoshop.
Equipment info
Telescope TMB/LOMO 80/480
Corrector Televue 2″ TRF 2008 flattener/reducer (FL: 384mm f/4.8)
Mount Losmandy G-11 Gemini
Camera SBIG ST-8300M
Guide camera Atik 1HS Mono
Guide scope Vixen VMC110L
Autoguide software PHD Guiding
Filters Baader 2″ UHC-S
Location Landgraaf, The Netherlands
Image comments