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Contains:  IC 435, NGC 2024, NGC 2023, Horsehead nebula, IC 434, IC 432, IC 431, NGC 1990, The star Alnitak (ζOri), The star σOri, The star Alnilam (εOri), Part of the constellation Orion (Ori)
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Testing the Baader 3.5 nm H-Alpha filter, 





    
        

            John
Testing the Baader 3.5 nm H-Alpha filter

Testing the Baader 3.5 nm H-Alpha filter

Technical card

Resolution: 4584x3375

Dates:March 5, 2019

Frames: 22x180"

Integration: 1.1 hours

Avg. Moon age: 28.49 days

Avg. Moon phase: 1.22%

Astrometry.net job: 2567015

RA center: 85.288 degrees

DEC center: -2.173 degrees

Pixel scale: 2.614 arcsec/pixel

Orientation: 121.703 degrees

Field radius: 2.067 degrees

Locations: Home base Full Observatory, Assen, Drenthe, Netherlands

Data source: Backyard

Description

Testing the new Baader 3.5 nm H-Alpha filter on the horsehead nebula.

I did this with a old 300 mm lens,and even then Alnitak showed almost no halos.

I`m pleased.

Comments

Author

kajouman
John
License: None (All rights reserved)
1700
Like

Revisions

  • Final
    Testing the Baader 3.5 nm H-Alpha filter, 





    
        

            John
    Original
  • Testing the Baader 3.5 nm H-Alpha filter, 





    
        

            John
    B

B

Very good filter,less halos and a nice price.

Sky plot

Sky plot

Histogram

Testing the Baader 3.5 nm H-Alpha filter, 





    
        

            John