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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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The Pleiades (M45), 


            Josh Woodward
The Pleiades (M45)

The Pleiades (M45)

Technical card

Resolution: 4434x3324

Dates:Nov. 5, 2018Nov. 6, 2018

ZWO Blue 1.25": 30x10" (gain: 75.00) -15C bin 2x2
ZWO Blue 1.25": 30x180" (gain: 75.00) -15C bin 2x2
ZWO Green 1.25": 30x10" (gain: 75.00) -15C bin 2x2
ZWO Green 1.25": 30x180" (gain: 75.00) -15C bin 2x2
ZWO L 1.25": 60x5" (gain: 75.00) -15C bin 1x1
ZWO L 1.25": 88x60" (gain: 75.00) -15C bin 1x1
ZWO Red 1.25": 30x10" (gain: 75.00) -15C bin 2x2
ZWO Red 1.25": 30x180" (gain: 75.00) -15C bin 2x2

Integration: 6.3 hours

Darks: ~50

Flats: ~12

Bias: ~100

Avg. Moon age: 27.81 days

Avg. Moon phase: 3.60%

Bortle Dark-Sky Scale: 5.00

Temperature: 9.00 job: 2356521

RA center: 56.792 degrees

DEC center: 24.110 degrees

Pixel scale: 1.587 arcsec/pixel

Orientation: 267.348 degrees

Field radius: 1.221 degrees

Locations: backyard, Chico, CA, United States

Data source: Backyard


This was one of my more complicated captures and processes. It is an LRGB HDR image composed of 88x60s Lum, 60x5s lum, 30x180s RGB, and 30x10s RGB. The processing alone took 12 hours😖. I was hoping to do a masked stretch but I got weir ringing artifacts on the HDR images.



Josh Woodward
License: None (All rights reserved)

Sky plot

Sky plot


The Pleiades (M45), 


            Josh Woodward

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