M42 - L(Ha) RGB (Uwe Deutermann)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 41 the01 Ori · 42 c Ori · 43 the02 Ori · 44 iot Ori · 45 Ori · De Mairan's nebula · Hatysa · M 43 · NGC 1973 · NGC 1975 · NGC 1977 · NGC 1980 · NGC 1981 · Sh2-279 · Sh2-281 · VdB44

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M42 - L(Ha) RGB

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M42 - L(Ha) RGB

M42 in RGB was on my to do list, did not anticipate to do it this early in the year though. I had to replace my battery in the Gemini controller of my Losmandy mount, and yes, as expected, it went downhill. A lot of stuff that I already programmed was gone, and it took me a while to get everything back to how it worked before ... I thought. Until I targeted an object close to the meridian. I wanted to have it flipped for the rest of the night, and the initial setting worked fine! Until SGP did the plate solving and tried to move the scope a bit. After the third correction (which was probably the final one) the mount just went back and did a meridian flip again! I had to stop the slew before my scope would have hit the mount. Tried it out 3 times, and then I gave up, will have to do some work before I get out to see why it is behaving like that. So I ended up with a quick target, M42 was just above the tree line, hence an easy decision. I added the Hα image from the RASA as luminance to the RGB image of the Z61, turned out not too bad 😊.

Original
B
C
D
Final
E

B

Description: The original Hα image from the RASA stretched with STF in PI.

Uploaded: ...

C

Description: The original RGGB image from the Z61stretched with STF in PI.

Uploaded: ...

D

Description: Applied SCNR Green to get rid of the green color in the stars.

Uploaded: ...

E

Description: Worked on selective stretching with PS (masking, etc.) to reduce the core lightness.

Uploaded: ...

ZWO ASI1600MM/QHY163M
Narrowband imaging
AstroBin Platform open discussions community forum
Celestron RASA

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Status	Advanced success
Started	...
Astrometry.net job	3055511
PixInsight job	ZENFFBVDPN2454CH8S813XV90GDBXPCX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h35m22s.43
RA (top/left)	05h31m55s.63
RA (top/right)	05h31m29s.41
RA (bottom/right)	05h38m49s.76
RA (bottom/left)	05h39m14s.72

Dec (center)	-05°16′30″.7
Dec (top/left)	-03°59′25″.8
Dec (top/right)	-06°28′39″.6
Dec (bottom/right)	-06°33′22″.8
Dec (bottom/left)	-04°04′10″.2

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M42 - L(Ha) RGB

M42 - L(Ha) RGB

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M42 - L(Ha) RGB

M42 - L(Ha) RGB

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