Hemisphere:  Southern  ·  Contains:  Flame Nebula  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  NGC 2023  ·  NGC 2024  ·  Orion B  ·  The star Alnitak (ζOri)  ·  The star σOri
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Shades of Gray in Orion, 


            Terry Hancock
Shades of Gray in Orion
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Shades of Gray in Orion

Technical card

Basic astrometry details

Astrometry.net job: 4196325

RA center: 5h 41' 1"

DEC center: -2° 0' 36"

Pixel scale: 1.200 arcsec/pixel

Orientation: 181.022 degrees

Field radius: 1.084 degrees

Resolution: 5356x3688

Data source: Own remote observatory

Remote source: Grand Mesa Observatory


Orion will be leaving us soon ☹ for another season and I’m Just getting around to processing the broadband data from Grand Mesa Observatory on the Horsehead (IC434) and The Flame Nebula (NGC 2024) using the QHY600M monochrome CMOS on the TAK130 and I was so impressed with the luminance data that I decided to share this image, “besides I just love black and white photos”. This is a 56% crop of the original and just 43 x 2 minutes exposures with no noise reduction whatsoever applied to the image for a total integration time of 86 minutes. Also visible in this image in quite good detail NGC2023, IC 435, IC 432, IC 431 and of course the triple star system of the blue supergiant Alnitak is also seen in all its glory with not so much of a halo.

We have the honor of testing the new QHY600 60 Megapixel Full Frame Monochrome CMOS camera for QHYCCD.
This setup is available immediately for people wanting to subscribe to Grand Mesa Observatory's system 1. https://grandmesaobservatory.com/equipment

Technical Details
Captured and processed by: Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
Dates of Capture December 24th, Jan 6th, 9th 2021
LUM 86 min 43 x 120 sec
Broadband and Narrowband Filters by Chroma
Camera: QHY600 Monochrome CMOS Photographic version
Gain 60, Offset 76 in Read Mode Photographic 16 bit
Calibrated with Dark, Bias and Flat Frames
Optics: Walter Holloway's Takahashi FSQ 130 APO Refractor @ F5
Image Scale: 1.19 arcsec/pix
Field of View: Field of view 1d 47' 6.3" x 1d 13' 44.9"
EQ Mount: Paramount ME
Image Acquisition software Maxim DL6 Pre Processing in Pixinsight Post Processed in Photoshop CC



Terry Hancock
License: None (All rights reserved)

Sky plot

Sky plot


Shades of Gray in Orion, 


            Terry Hancock