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Contains:  Barnard's Merope Nebula, IC 349, Maia Nebula, Merope Nebula, NGC 1432, NGC 1435, The star Atlas (27Tau), The star Celaeno (16Tau), The star Electra (17Tau), The star Merope (23Tau), The star Pleione (28Tau), The star Sterope I (21Tau), The star Taygeta (19Tau), The star ηTau
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M45 - The Pleiades, 


            Trevor Gunderson
M45 - The Pleiades
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M45 - The Pleiades

Technical card

Dates:Dec. 20, 2019Dec. 27, 2019

ZWO B 31mm: 20x50" (gain: 76.00) -20C bin 1x1
ZWO G 31mm: 20x75" (gain: 76.00) -20C bin 1x1
ZWO L 31 mm: 90x15" (gain: 76.00) -20C bin 1x1
ZWO R 31mm: 20x60" (gain: 76.00) -20C bin 1x1

Integration: 1.4 hours

Darks: ~25

Flats: ~25

Flat darks: ~25

Avg. Moon age: 12.40 days

Avg. Moon phase: 18.65%

Basic astrometry details job: 3328020

RA center: 3h 47' 0"

DEC center: +24° 4' 4"

Pixel scale: 1.382 arcsec/pixel

Orientation: 103.599 degrees

Field radius: 1.037 degrees

Resolution: 4272x3312

Locations: Astro Shed, Beaver Dam, WI, United States

Data source: Backyard


Testing LRGB exposure times on bright stars with the ASI1600. Walking it right up to the line it seems. Considering lowering gain settings before tackling Alnitak.



Trevor Gunderson
License: None (All rights reserved)


  • M45 - The Pleiades, 


            Trevor Gunderson
  • M45 - The Pleiades, 


            Trevor Gunderson
  • Final
    M45 - The Pleiades, 


            Trevor Gunderson

Sky plot

Sky plot


M45 - The Pleiades, 


            Trevor Gunderson