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Contains:  Merope nebula, NGC 1435, Maia nebula, NGC 1432, The star Pleione (28Tau), The star Atlas (27Tau), The star ηTau, The star Merope (23Tau), The star Sterope I (21Tau), The star Taygeta (19Tau), The star 18Tau, The star Electra (17Tau), The star Celaeno (16Tau)
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Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
Seven Sisters, Subaru Cluster - M45

Seven Sisters, Subaru Cluster - M45

Technical card

Resolution: 2187x1615

Dates:Dec. 22, 2017Jan. 13, 2018

Frames:
Astronomik Deep Sky Narrowband/LRGB filter set: 90x60" (gain: 139.00) -15C bin 1x1
Astronomik Deep Sky Narrowband/LRGB filter set: 75x60" (gain: 139.00) -15C

Integration: 2.8 hours

Darks: ~22

Flats: ~25

Flat darks: ~30

Bias: ~100

Avg. Moon age: 15.04 days

Avg. Moon phase: 13.20%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 20.57

Temperature: 15.00

Astrometry.net job: 1893300

RA center: 56.755 degrees

DEC center: 24.088 degrees

Pixel scale: 4.620 arcsec/pixel

Orientation: 88.714 degrees

Field radius: 1.745 degrees

Locations: Alafia State Park, Mag 20.5 skies, Lithia, FL, None

Description

Dark skies really helped with the minimal integration time on this. It looked so good straight out of APP that I spent just a couple min in PS (which I'm still a n00b at). Would have gotten more subs but 98% humidity shut me down, it was getting foggy. Transparency bad, seeing excellent. Looks like I need to adjust my FR/FF as well.

25-28 x 1 min R,G,B and 30'' x 15 for L

Will add a few more hours to this next time I am at a dark site to bring the rest of the dust out!

Comments

Author

huerbsch
Robert Huerbsch
License: None (All rights reserved)
2751
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Revisions

  • Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    Original
  • Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    B
  • Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    C
  • Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    D
  • Final
    Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    E
  • Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    F
  • Final
    Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch
    G

C

Took a trip to bortle 3 skies and added more data. May redo post processing again without HP sharpen

D

version c was too sharp, less high pass.

E

A dusty and more natural version. Wish I had gotten more integration time on it for the background dust.

F

smaller stars, less burnt/bloated

Sky plot

Sky plot

Histogram

Seven Sisters, Subaru Cluster - M45, 





    
        

            Robert Huerbsch

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