M45 Pleiades (Seven Sisters) by Nikon D800 (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 11 Tau · 16 Tau · 17 Tau · 18 Tau · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 26 Tau · 27 Tau · 28 Tau · Atlas · Barnard's Merope Nebula · Celaeno · Electra · IC 349 · IC 353 · IC 354 · M 45 · Maia · Maia Nebula · Merope Nebula · NGC 1432 · NGC 1435 · Pleione · The star 18Tau · The star Atlas (27Tau) · The star Celaeno (16Tau) · And 6 more.

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M45 Pleiades (Seven Sisters) by Nikon D800

Thanks to Wei and Pfile for the technical help in getting this image out of the Light Polluted SF Bay area with a DSLR.

Crucial factors included especially getting the flats. Eventually I took them manually and saved the sky flats to the memory card.

The actual images were collected with CameraRC software as nef format (42MB apiece). The Darks were captured with Maxim DL.

I have yet to get Bias but think I need them as I had to crop a gradient off the bottom of the image.

Standard PI processing. The final debayered images were 425MB apiece (yes 425MB). Thanks Pfile.

Could use a bit more noise reduction but I might lose the nebulosity...

LAST REVISION is full frame with almost 5 DEG FOV. Pfile thinks gradient may have been shutter, so I removed it with DBE.

Original
B
Final
C

Cloudy Nights

Messier Objects

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Status	Advanced success
Started	...
Astrometry.net job	4106854
PixInsight job	SU44WMP5IVJTRYT6OATZIFAGO9SWEE0A
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	03h46m32s.9
RA (top/left)	03h38m02s.6
RA (top/right)	03h55m50s.4
RA (bottom/right)	03h55m13s.3
RA (bottom/left)	03h37m04s.4

Dec (center)	+24°22′28″
Dec (top/left)	+22°51′17″
Dec (top/right)	+23°07′50″
Dec (bottom/right)	+25°51′36″
Dec (bottom/left)	+25°34′52″

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M45 Pleiades (Seven Sisters) by Nikon D800

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M45 Pleiades (Seven Sisters) by Nikon D800

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