M31 Andromeda Galaxy revisited in L-RGB + Ha (Arny)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · 35 nu. And · Andromeda Galaxy · HD3969 · HD4143 · HD4174 · HD4322 · HD4669 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224 · The star ν And

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M31 Andromeda Galaxy revisited in L-RGB + Ha

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M31 Andromeda Galaxy revisited in L-RGB + Ha

Revisiting Andromeda Galaxy after a year from a very clear bortle 3-4 sky and a bit processing experience under the belt with a mono camera taking LRGB+Ha subs.

Processing entirely in PixInsight,
foraxx RGB combination,
BlurX, NoiseX, StarX Terminator enhanced
HDRMultiScaleTransformation for L to increase structure in core

Original
Final
D

D

Title: reprocessed completely

Description: following the new processing route that works out more detail:
- crop
- LinFit to highest median (G)
- Graxpert
- ChannelCombi RGB

- Ha continuum subtraction using toolbox script
- Ha contsub integration into RGBH

- RGBH + L BlurX and NoiseX
- EZ stretch RGBH and L

- derive softened mask from contrast enhanced L
- L HdrMT scale 7

- LRGB combination L into RGBH without crominance noise reduction

- curves finestuning on LRGBH on saturation and contrast, L-Mask to dampen background

Uploaded: ...

Galaxies

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	8342278
PixInsight job	CGSLLP4IURYC0TS9JNEGX2MC4DFURHYM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m50s.14
RA (top/left)	00h39m08s.73
RA (top/right)	00h50m11s.14
RA (bottom/right)	00h46m40s.10
RA (bottom/left)	00h35m26s.22

Dec (center)	+41°16′15″.2
Dec (top/left)	+40°03′23″.5
Dec (top/right)	+41°02′44″.3
Dec (bottom/right)	+42°28′37″.1
Dec (bottom/left)	+41°28′00″.7

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M31 Andromeda Galaxy revisited in L-RGB + Ha

M31 Andromeda Galaxy revisited in L-RGB + Ha

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Image Index:

Contribution Index (beta):

M31 Andromeda Galaxy revisited in L-RGB + Ha

M31 Andromeda Galaxy revisited in L-RGB + Ha

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