M106 (Dong Liang)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 106 · NGC 4217 · NGC 4220 · NGC 4226 · NGC 4231 · NGC 4232 · NGC 4248 · NGC 4258

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M106

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M106

LRGB data collected using TOA150 and ASI6200mm @荧灼 Observatory.
300 of 300s subs, total exposure 25hrs.

Ha data collected using Skywatcher 250/1000 reflecter and QHY268m @Gaoyazi Observatory.
26 of 900s subs, total exposure 6.5hrs.

Revealing the jet arms near core especially the bottom right one is the most difficult task for me by far. I used 900s subs at 95 gain (0.05 ADU), and threw away most subs. Still it only gives a very faint shadow with an successful substraction. Scripts and linar combination methods failed to work. Eventually I stretched the substracted ha data, enhanced structure and contrast, and used it as a mask to do the trick.

Original
Final
B

B

Description: Denoised a bit
Jet arms saturation down a bit
Lighter color

Uploaded: ...

QHY268M/ZWO2600M Images
Fast Newtonians
QHY Users Group
Imaged with N.I.N.A.
N.I.N.A. Users
Southern Hemisphere Astro
Reflecting Telescope Group
Imagers of Gaoyazi-Observatory, China
PixInsight Addicts

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Status	Advanced success
Started	...
Astrometry.net job	5770065
PixInsight job	DG325OIRI4RG8WKJY25NE2QYVEYXME8N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h18m47s.845
RA (top/left)	12h22m09s.996
RA (top/right)	12h22m07s.405
RA (bottom/right)	12h15m20s.553
RA (bottom/left)	12h15m34s.618

Dec (center)	+47°20′01″.63
Dec (top/left)	+46°34′26″.75
Dec (top/right)	+48°06′22″.97
Dec (bottom/right)	+48°05′19″.92
Dec (bottom/left)	+46°33′24″.41

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