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Contains:  IC 1396, The star Garnet Star (μCep)
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Elephant's Trunk HaO3S2RGB, 





    
        

            Ben
Elephant's Trunk HaO3S2RGB

Elephant's Trunk HaO3S2RGB

Technical card

Resolution: 4002x3066

Dates:Nov. 19, 2019Nov. 20, 2019Nov. 21, 2019

Frames:
Baader B 1.25'' Filter: 19x180" (gain: 115.00) -15C
Baader f/2 Highspeed 1.25" H-Alpha Filter: 38x180" (gain: 115.00) -15C
Baader f/2 Highspeed 1.25" OIII Filter: 24x180" (gain: 115.00) -15C
Baader f/2 Highspeed 1.25" SII Filter: 36x180" (gain: 115.00) -15C
Baader G 1.25'' Filter: 18x180" (gain: 115.00) -15C
Baader R 1.25'' Filter: 15x180" (gain: 115.00) -15C

Integration: 7.5 hours

Darks: ~40

Flats: ~40

Flat darks: ~40

Avg. Moon age: 22.82 days

Avg. Moon phase: 42.99%

Bortle Dark-Sky Scale: 6.00

Astrometry.net job: 3073408

RA center: 21h 39' 4"

DEC center: +57° 27' 46"

Pixel scale: 3.821 arcsec/pixel

Orientation: 170.911 degrees

Field radius: 2.675

Locations: Backyard, Saint-Orens de Gameville, France

Data source: Backyard

Description

- shot in good and bad mixed conditions (fog, clouds, half-moon...)
- shot at f2
- for the first time I have used local normalisation in stacking : it helps to remove the gradients
- Ha, O3 and S2 have been mixed with R, G, B
- all channels Ha, O3, S2, R, G, B have been integrated together to a super luminance

Revision B shows a close up of the trunk

Comments

Author

netspoon
Ben
License: None (All rights reserved)
1581
Like

Revisions

  • Final
    Elephant's Trunk HaO3S2RGB, 





    
        

            Ben
    Original
  • Elephant's Trunk HaO3S2RGB, 





    
        

            Ben
    B

B

trunk close up

Sky plot

Sky plot

Histogram

Elephant's Trunk HaO3S2RGB, 





    
        

            Ben

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