Dreyer's Nebula (IC 447) complex (Andy Brown)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: B37 · B38 · IC 2169 · IC 446 · IC 447 · LBN 895 · LBN 898 · LBN 899 · LBN 901 · LBN 902 · LBN 903 · LBN 904 · LDN 1605 · LDN 1606 · LDN 1607 · LDN 1609 · NGC 2245 · NGC 2247 · PGC 136451 · PGC 19130 · PGC 2807189 · PGC 2807190 · VdB76 · VdB77 · VdB78 · VdB79

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Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

Powered byPixInsight

Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

Dreyer's Nebula (IC 447) is a reflection nebula in Monoceros surrounded by lanes of dark dust and several smaller reflection nebulae. The top right corner is the edge of the Hydrogen Alpha emission region which includes the Cone and Fox Fur Nebulae.

I managed 4 nights of RGB imaging on this, totalling almost 8 hours. If the clouds allow it I will definitely add to this to bring out the fainter dust lanes and reduce the noise and maybe add some Ha too.

I've also tried variations of my processing workflow to make some comparisons, in particular using Bayer Drizzle rather than Adaptive Airy Disk debayering in APP, using the new GradientCorrection process in PI and using GHS with StarXterminator before and after stretching. I've uploaded various revisions as a comparison.

B

Title: Contrast

Uploaded: ...

C

Title: Reintegrate with Bayer Drizzle

Uploaded: ...

D

Title: De-emphasize Stars

Uploaded: ...

E

Title: Star removal after GHS

Uploaded: ...

F

Title: Lighten

Description: Lighten background and darker areas slightly and reduce noise reduction slightly.

Uploaded: ...

G

Title: Colour balance

Description: Improve background colour balance

Uploaded: ...

H

Title: Smaller stars, cleaner background

Description: Redo star removal to reduce larger star sizes. Cleaner background with less aggressive noise reduction

Uploaded: ...

I

Title: Balance background colour

Description: Remove blue tinge in background

Uploaded: ...

Takahashi Refractors
The OSC Club (One Shot Camera)
UK Astro-Imaging
Imaged with APT
IOptron CEM
Takahashi FSQ 85 EDX
FriendlyCosmos

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Status	Advanced success
Started	...
Astrometry.net job	9424179
PixInsight job	HF3FEAZO8EJZEE6R8VGCP7OVCHO1A04L
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m51s.14
RA (top/left)	06h30m16s.98
RA (top/right)	06h38m27s.40
RA (bottom/right)	06h33m25s.89
RA (bottom/left)	06h25m15s.59

Dec (center)	+10°25′38″.9
Dec (top/left)	+08°49′59″.1
Dec (top/right)	+10°40′52″.3
Dec (bottom/right)	+12°01′28″.10
Dec (bottom/left)	+10°09′59″.3

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Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

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Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

Dreyer's Nebula (IC 447) complex

Revision title: Balance background colour

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

F

G

H

I

Sky plot

Histogram

In these public groups

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