Rosette in Dualband OSC SiiHb (Joel Lee)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · HD258857 · HD259135 · HD259922 · HD45507 · HD45530 · HD45545 · HD45760 · HD45910 · HD45911 · HD46006 · HD46056 · HD46057 · HD46105 · HD46106 · HD46107 · HD46108 · HD46149 · HD46150 · HD46180 · HD46201 · HD46202 · HD46223 · HD46324 · HD46375 · HD46424 · HD46469 · HD46484 · HD46485 · HD46517 · And 20 more.

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Rosette in Dualband OSC SiiHb

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Rosette in Dualband OSC SiiHb

This is one of the other incredibly rich and vivid targets for my widefield set up. After seeing the skull version of this nebula when rotated, I could not unsee it.

I had originally planned on making a Ha - SOHb composition for this target but the SiiHb dualband OSC images alone had amazing color. Hb looks awesome.

Processing steps:

Stack/Blink in ASTAP
GraXpert crop and gradient removal
Bring into Affinity Photo

Pseudo arcsinh100, denoise, leveling curve, arcsinh, stretch curve
Export to desktop as TIFF for StarNet2

StarNet 2 extract stars and the rest
Boost nebula with channel mixer red+10%, blue +20%, vibrance, saturation.
Very light clarity filter
Bring back stars

Denoise, stretch, saturate/vibrance

Done!

Final
Original
B

B

Title: Rosette original crop

Description: This is the original image I went with before making the thumbnail version.

Uploaded: ...

Duo-band, Tri-band, and Quad-band Imaging
SF Bay Area Imagers
Mac Users Group
Affinity Photo for Astrophotography users

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Status	Advanced success
Started	...
Astrometry.net job	9447475
PixInsight job	1KFN28N3LVD5DQII4LP1Q3F711K8Z5D3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m56s.15
RA (top/left)	06h35m57s.47
RA (top/right)	06h27m28s.53
RA (bottom/right)	06h27m55s.81
RA (bottom/left)	06h36m23s.80

Dec (center)	+04°58′09″.6
Dec (top/left)	+06°04′39″.10
Dec (top/right)	+05°57′53″.2
Dec (bottom/right)	+03°51′29″.9
Dec (bottom/left)	+03°58′14″.1

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Rosette in Dualband OSC SiiHb

Rosette in Dualband OSC SiiHb

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Rosette in Dualband OSC SiiHb

Rosette in Dualband OSC SiiHb

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Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

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