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Contains:  The star Merope (23Tau), The star Sterope I (21Tau), The star Taygeta (19Tau), The star 18Tau, The star Electra (17Tau), The star Celaeno (16Tau)
Getting plate-solving status, please wait...
M45 by Moonlight, 


            Remco Hekker
M45 by Moonlight

M45 by Moonlight

Technical card

Resolution: 1600x975

Dates:March 18, 2019

4x120" ISO400
31x60" ISO400
17x90" ISO400

Integration: 1.1 hours

Darks: ~27

Flats: ~25

Bias: ~100

Avg. Moon age: 11.81 days

Avg. Moon phase: 90.46%

Bortle Dark-Sky Scale: 4.00

Temperature: 5.00 job: 2596706

RA center: 56.797 degrees

DEC center: 24.099 degrees

Pixel scale: 7.506 arcsec/pixel

Orientation: 280.651 degrees

Field radius: 1.953 degrees

Data source: Backyard


This is my very first astrophoto!
So, please be gentle. ;-)

The "original" version has only been stacked and stretched.
I've mentioned the other adjustments with their versions.



Remco Hekker
License: None (All rights reserved)


  • M45 by Moonlight, 


            Remco Hekker
  • Final
    M45 by Moonlight, 


            Remco Hekker


I considered removing the background and moonlight gradient. It felt a little empty so I decided to add 30% of the background back in. The crop really helped me with the amount I could play with the gamma. And get a lot of nebulosity back. Did some noise reduction. Only added some sharpening in CaptureOne because I haven't learned how to do it in PI jet.

Sky plot

Sky plot


M45 by Moonlight, 


            Remco Hekker