Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  IC 353  ·  Maia nebula  ·  Merope nebula  ·  NGC 1432  ·  NGC 1435  ·  The star 18Tau  ·  The star 7Tau  ·  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 - Pleiades, Joey Conenna
M45 - Pleiades
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M45 - Pleiades

Getting plate-solving status, please wait...
M45 - Pleiades, Joey Conenna
M45 - Pleiades
Powered byPixInsight

M45 - Pleiades

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Description

This is a reprocessing of data taken on December 11, 2017, from Bortle 3 skies at Kissimmee Prairie Preserve state park in Florida, USA.

45 second exposures ISO 800 taken with a Canon 50D, Canon EF 200mm L F2.8, on an iOptron SkyTracker, manually dithering between every 20 frames. Took around 120 frames.

I followed a workflow used by Robert Clark that doesn't use calibration frames.

First I imported all lights into Lightroom, applied Adobe Camera Raw profile, 200mm EF L lens correction profile, remove CA, Luminance noise reduction +20, exposure -.5, lower highlights -50, saturation +15. Exported these as 16-bit TIFFS.

Imported TIFFS to DSS and stacked best 70 using Kappa-Sigma-Clipping and no background calibration. Exported TIFF from DSS, to PS and used curves, levels, and some Astronomy Tools Actions.

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M45 - Pleiades, Joey Conenna