M101 LRGB hybrid (John Favalessa)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5447 · NGC 5449 · NGC 5450 · NGC 5451 · NGC 5453 · NGC 5455 · NGC 5457 · NGC 5461 · NGC 5462 · NGC 5471 · NGC 5477 · PGC 2464645 · PGC 2468609 · PGC 2469762 · PGC 2470911 · PGC 2816075 · PGC 49919 · Pinwheel galaxy

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M101 LRGB hybrid

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M101 LRGB hybrid

For more testing, I thought what if I used luminance from my ASI2600MM but used my ASI2600MC with the Lpro light pollution filter for the color channels? For the luminance I used the Astrodon L2P filter. This testing is to see what works best from my bortle 6 backyard. This is the result. Not bad color. the faint arms show up. Needs Ha but waiting for the filter on backorder. I will take RGB with the 2600MM tonight and run again. It will be a fun comparison.

Original
B
C
D
Final
E

B

Description: 25x300sec RGB, combined in APP RGB1, processed in Pix with the same luminance as version A (which used OSC Lpro filter color data). I'm overwhelmed processing this "beast"! But I definitely find better color data in the mono RGB. Makes sense as all the photons are gathered. I still will reprocess using Pix ChannelCombination...but my wife says I'm on the computer too long today. (you should see me Pix desktop...28 image icons!)

Comparing both versions full screen, I believe using the OSC Lpro combination will have some benefits especially for the fuller moon.

Uploaded: ...

C

Description: Same LRGB data integrated in APP, but this time I used Pix ChannelCombination. I think this is the best so far. the faint arms have been enhanced. still this is a "beast" to process.

Uploaded: ...

D

Description: slight star reduction to version C.

Uploaded: ...

E

Description: Combined some Ha from a gracious member. Combining Ha to RBG was another great learning experience. I ended up using Pixmath as described by Amy Astro. I used a boost factor of only 0.2 as the Ha data was so incredible. Thanks Rodd!

Uploaded: ...

SoCal Astrophotography
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Status	Advanced success
Started	...
Astrometry.net job	4439134
PixInsight job	33RHARI96EJMJMZYTFDLRZI8X3POFLF9
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	14h03m11s.958
RA (top/left)	14h06m11s.216
RA (top/right)	13h59m58s.594
RA (bottom/right)	14h00m15s.817
RA (bottom/left)	14h06m22s.380

Dec (center)	+54°20′36″.18
Dec (top/left)	+54°42′05″.26
Dec (top/right)	+54°39′19″.40
Dec (bottom/right)	+53°58′50″.23
Dec (bottom/left)	+54°01′33″.44

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M101 LRGB hybrid

M101 LRGB hybrid

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M101 LRGB hybrid

M101 LRGB hybrid

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D

E

Sky plot

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