M94 Croc's Eye Galaxy (Joel Lee)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 3808 · M 94 · NGC 4736

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M94 Croc's Eye Galaxy

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M94 Croc's Eye Galaxy

I started this project since the nearly full moon was super close to the Leo Triplet. I thought the outer ring would be a bit brighter but I'll need to get at least double to quadruple the data to clean up the outer ring. I'll need to come back in the future but at the moment I just wanted to get this out of the way since I already started it and the moon and clouds are now out of the way.

For this galaxy, I needed to utilize more masking to get the outer ring to stand out more. However, the data on the ring is not particularly good since it is so much more dim and ended up posterized.

Processing:

Stack in ASTAP with flats, darks, flat darks
Move to Pixinsight

DynamicCrop
GradientCorrection Auto Convergence and Default otherwise
ImageSolver
SPCC
BXT Default
NXT 0.6~0.5 denoise default detail
GHS x2 + 1x Linear
Range Mask Core + Saturation boost
Range Mask background suppression
Range Mask middle ring stretch
NXT 0.6~0.5

Mac Users Group
Astrophotography from home
SF Bay Area Imagers
Broadband under Bortle 7/8/9
Duo-band, Tri-band, and Quad-band Imaging
The OSC Club (One Shot Camera)

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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
Deep sky
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Star trails
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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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.
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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	9753391
PixInsight job	ZW51K6W978S7QKONNR322NI3IS3FG1RP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h50m52s.918
RA (top/left)	12h48m24s.136
RA (top/right)	12h48m07s.542
RA (bottom/right)	12h53m18s.622
RA (bottom/left)	12h53m42s.289

Dec (center)	+41°07′21″.69
Dec (top/left)	+41°52′32″.68
Dec (top/right)	+40°24′18″.41
Dec (bottom/right)	+40°21′47″.82
Dec (bottom/left)	+41°49′57″.83

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M94 Croc's Eye Galaxy

M94 Croc's Eye Galaxy

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M94 Croc's Eye Galaxy

M94 Croc's Eye Galaxy

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