Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  Crab nebula  ·  M 1  ·  M1  ·  NGC 1952  ·  Sh2-244
Getting plate-solving status, please wait...
Messier 1: The Crab Nebula in RGB HSO, 



    
        

            David Redwine
Powered byPixInsight

Messier 1: The Crab Nebula in RGB HSO

Getting plate-solving status, please wait...
Messier 1: The Crab Nebula in RGB HSO, 



    
        

            David Redwine
Powered byPixInsight

Messier 1: The Crab Nebula in RGB HSO

Imaging telescopes or lenses: Celestron 8" EdgeHD  ·  CELESTRON EdgeHD 800

Imaging cameras: ZWO ASI1600MC  ·  ZWO ASI1600 MM Pro

Mounts: Celestron CGX-L

Guiding telescopes or lenses: Celestron RACI

Guiding cameras: Zwo ASI 120 MM-S

Focal reducers: Celestron Edge HD 800 f/0.7

Software: Topaz Labs DeNoise AI  ·  Celestron CPWI  ·  PHD2 Guiding  ·  Adobe Photoshop Version: 21.1.3  ·  PixInsight  ·  APT

Filters: ZWO 1.25" OIII 7nm  ·  ZWO 1.25" SII 7nm  ·  ZWO Ha 7nm 1.25"  ·  Zwo Blue 1.25"  ·  ZWO Red 1.25"

Accessory: Celestron Off-axis guider  ·  Zwo 8 position 1.25" Filter wheel


Dates:Feb. 22, 2020Feb. 1, 2021Feb. 2, 2021

Frames:
Baader Moon & Skyglow Filter 1.25": 49x180" (2h 27')
ZWO 1.25" OIII 7nm: 16x240" (1h 4') (gain: 300.00) -35C bin 2x2
ZWO 1.25" SII 7nm: 14x240" (56') (gain: 300.00) -35C bin 2x2
ZWO Ha 7nm 1.25": 16x240" (1h 4') (gain: 300.00) -35C bin 2x2
ZWO Red 1.25": 19x240" (1h 16') (gain: 1.00) -35C bin 1x1
Zwo Blue 1.25": 17x240" (1h 8') (gain: 1.00) bin 1x1

Integration: 7h 55'

Avg. Moon age: 22.29 days

Avg. Moon phase: 53.23%


Astrometry.net job: 4208386

RA center: 5h 34' 31"

DEC center: +22° 0' 13"

Pixel scale: 0.532 arcsec/pixel

Orientation: -96.748 degrees

Field radius: 0.264 degrees


Resolution: 2860x2144

Locations: Bluff Creek Observatory, Coleman, MI, United States

Data source: Backyard

Description

The Crab Nebula in RGB and SHO

My efforts to capture the Crab Nebula in pure RGB have resulted in a fuzzy blob with little details or structure. This is an attempt to blend my HSO data with several hours of RGB data using the following palette:

Red=S+Ha+R
Green= S
Blue= O+B

Channel scaling was done using histogram adjustments.

Comments