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Contains:  Great Nebula in Orion, M 42, M 43, NGC 1973, NGC 1975, NGC 1976, NGC 1977, NGC 1980, NGC 1982, The star 42Ori, The star 45Ori, The star θ1Ori, The star θ2Ori, The star ιOri
Getting plate-solving status, please wait...
Orion nebula, 



    
        

            Ben
Orion nebula
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Orion nebula

Technical card


Dates:Feb. 7, 2019

Frames:
Baader f/2 Highspeed 1.25" H-Alpha Filter: 33x10" (gain: 200.00)
Baader f/2 Highspeed 1.25" H-Alpha Filter: 58x2" (gain: 200.00)
Baader f/2 Highspeed 1.25" H-Alpha Filter: 37x30" (gain: 200.00)
Baader f/2 Highspeed 1.25" H-Alpha Filter: 51x60" (gain: 200.00)
Astronomik CLS-CCD: 35x10" (gain: 200.00)
Astronomik CLS-CCD: 34x2" (gain: 200.00)
Astronomik CLS-CCD: 27x30" (gain: 200.00)

Integration: 1.6 hours

Darks: ~47

Bias: ~109

Avg. Moon age: 2.34 days

Avg. Moon phase: 6.07%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 3268578

RA center: 5h 35' 13"

DEC center: -5° 21' 43"

Pixel scale: 1.986 arcsec/pixel

Orientation: 10.554 degrees

Field radius: 1.253 degrees


Resolution: 3620x2745

Locations: Backyard, Saint-Orens de Gameville, France

Data source: Backyard

Description

Ha HDR composition, RGB HDR composition, merge of both

- rgb stack is blurry, seems out of focus.
- i used drizzle 3x3 for Ha and drizzle 2x2 for rgb, except for Ha 60'' stack : a square pattern appears after drizzle. I can not figure out why...
- the 10'' rgb stack looks nice. That would be interesting to see the result with a lot of 10'' subs only.

A) processed HDR Ha
B) processed HDR RGB
Final) LRGB

Comments

Author

netspoon
Ben
License: None (All rights reserved)
1820
Like

Revisions

  • Orion nebula, 



    
        

            Ben
    Original
  • Final
    Orion nebula, 



    
        

            Ben
    D

D

Description: Reprocessed. No HDR in this one. Only 60" subs.

Sky plot

Sky plot

Histogram

Orion nebula, 



    
        

            Ben