M45 "Pleiades" Star Cluster (2021) (Mark Germani)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 16 Tau · 17 Tau · 18 Tau · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 25 eta Tau · 26 Tau · 27 Tau · 28 Tau · Alcyone · Asterope · Atlas · Barnard's Merope Nebula · Celaeno · Electra · HD23155 · HD23156 · HD23157 · HD23194 · HD23246 · HD23325 · HD23326 · HD23351 · HD23361 · HD23375 · HD23387 · And 52 more.

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M45 "Pleiades" Star Cluster (2021)

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M45 "Pleiades" Star Cluster (2021)

This is probably the first image I've had a good amount of exposure time on. We've had a bout of (not to jinx myself, because we're only a few nights in) clear skies here in Vancouver, BC so I wanted to focus on the Pleiades, as I know that soon enough they'll be too low in the sky, and as the moon is nearly new I figured the timing was right for a reflection nebula.

Night one (February 6) I ditched my CLS filter and took an hour's worth of exposures, which I stacked.

NIght two (February 7) I put the CLS filter back in, and took an hour and a half. I had to trash a third of them, so I ended up with an hour of exposures.

Here is the result of stacking the two resulting FITS files. Night one won by a landslide - my Svbony CLS filter is too aggressive for this target. I want to try at least one more night, and perhaps vary the ISO, but I'm happy with the results so far.

Original
Final
B

B

Description: Integrated another short session of data (20 mins). Increased the noise floor, but brought out more detail. Also was a little less heavy-handed with the NR and corrected some of the green cast from the original.

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Status	Advanced success
Started	...
Astrometry.net job	4227664
PixInsight job	GB0IJNM5UP464FYR7GXF2JP0W4Q3EVEC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h46m13s.61
RA (top/left)	03h51m54s.62
RA (top/right)	03h42m28s.35
RA (bottom/right)	03h40m35s.96
RA (bottom/left)	03h49m55s.85

Dec (center)	+24°09′26″.7
Dec (top/left)	+24°32′00″.0
Dec (top/right)	+25°11′43″.5
Dec (bottom/right)	+23°45′59″.9
Dec (bottom/left)	+23°06′41″.8

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M45 "Pleiades" Star Cluster (2021)

M45 "Pleiades" Star Cluster (2021)

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M45 "Pleiades" Star Cluster (2021)

M45 "Pleiades" Star Cluster (2021)

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