Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter (patrick cartou)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · De Mairan's nebula · Flame Nebula · Great Orion Nebula · Hatysa · Horsehead nebula · IC 420 · IC 431 · IC 432 · IC 434 · IC 435 · LBN 935 · LBN 940 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · LBN 954 · LBN 958 · LBN 962 · And 41 more.

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Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

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Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

New trial toward the south and my public lightnings issues ! With an enormous gradient consequently !!!

I used this time the Nisi natural night filter.

Planned 4 hours on this target, but did a great mistake: I wanted to use this lens full open (f/2.8), but an unfortunate gesture had modified the aperture to f/4.5.
So a great loss of photons...

Original
B
C
Final
D

C

Description: New stacking SIRIL 0.99.10.1 drizzle x 2

Uploaded: ...

Cloudy Nights
AAA : Astronomes et Astrographes Amateurs

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Status	Advanced success
Started	...
Astrometry.net job	5464559
PixInsight job	96EDK7P7S41PEKNQM4DFSIJ3UUWK2N5E
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h38m28s.55
RA (top/left)	05h31m10s.91
RA (top/right)	05h31m49s.65
RA (bottom/right)	05h45m48s.70
RA (bottom/left)	05h45m05s.31

Dec (center)	-03°29′34″.2
Dec (top/left)	-00°53′30″.6
Dec (top/right)	-06°11′56″.9
Dec (bottom/right)	-06°05′13″.2
Dec (bottom/left)	-00°46′55″.1

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Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

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Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

Orion from Alnitak to M42 / Pentax K5 mod + Pentax 200mm DA f/2.8 / SW star adv mini / 200 iso / Nisi Natural night filter

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Acquisition details

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C

Sky plot

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