M42 seestar with 750 subframes (Frédéric Ruciak)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 Ori A) · 41 Ori C · 41 Ori D · 41 the01 Ori · 42 Ori) · 42 c Ori · 43 Ori) · 43 the02 Ori · 44 Ori) · 44 iot Ori · 45 Ori · Great Orion Nebula · HD36782 · HD36917 · HD36918 · HD36959 · HD36960 · HD36981 · HD36982 · HD36999 · HD37000 · HD37025 · HD37042 · HD37058 · HD37061 · HD37062 · HD37115 · HD37150 · HD37188 · Hatysa · And 19 more.

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M42 seestar with 750 subframes

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M42 seestar with 750 subframes

I try to improve my M42 with seestar. This picture is based on 1000 subframes of which Pixinsight chose to keep 740. I chose to drizzle x2 with PI as I got a better result last time doing it assuming that seestar is undersampling a bit and that the seestar tracking provides some natural dithering between subframes. The framing is not exactly the same as my previous image and includes an interesting feature at the top left. Postprocessing in PI with HDMRT, GHS and LHE helps a lot to improve the impression of storm of gas filaments. I am still struggling with the color calibration of seestar image using LP filter there is no information about its response curve and it's the best option among the available ones in PI.

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Status	Advanced success
Started	...
Astrometry.net job	8773912
PixInsight job	QUDI2MCZNYC0K3R8AS5G5IOMCQFHO7WO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h35m09s.73
RA (top/left)	05h35m55s.30
RA (top/right)	05h33m09s.60
RA (bottom/right)	05h34m24s.80
RA (bottom/left)	05h37m10s.77

Dec (center)	-05°28′07″.5
Dec (top/left)	-04°45′59″.9
Dec (top/right)	-04°56′31″.4
Dec (bottom/right)	-06°10′14″.6
Dec (bottom/left)	-05°59′41″.3

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M42 seestar with 750 subframes

M42 seestar with 750 subframes

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M42 seestar with 750 subframes

M42 seestar with 750 subframes

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