Jellyfish Nebula (Michael Vincent)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 7 Gem) · Gem A · IC 443 · IC 444 · Praepes (η Gem · Tejat Prior · The star 12 Gem · The star Propus

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Jellyfish Nebula

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Jellyfish Nebula

===Capture===
171 Ha at 180s, 100 gain
208 O3 at 180s, 100 gain
171 S2 at 180s, 100 gain
Bortle 7 suburban zone

DBE each filter

===Lum===
BlurXTerminator on Ha for Luminance
MaskedStretch
GeneralizedHyperbolicStretch

===RGB===
MaskedStretch S2 and O3
HOS ChannelCombination
Convolution to smooth colors

===Stars===
ChannelCombination (linear SHO)
SPCC (optimize for stars)
S2 672.4nm
Ha 656.3nm
03 500.7nm
ArcsinhStretch
Extract stars with StarXTerminator (keep stars)

===LRGB===
Apply Lum to RGB with LRGBCombination
Apply Lum with LRGBCombination
StarXTerminator (discard stars)
Starlesss - Color Curves
Combine Starless with Stars: ~((~starless)*(~stars))
Convolution on RGB to smooth colors
Reapply Lum
Contrast curves
NoiseXTerminator
UnsharpMask, mask dark areas with extracted Lum range

Texas Astronomy
Narrowband imaging
Suburban Astrophotography
PixInsight Addicts
ZWO ASI2600MM Pro
Light Polluted skies

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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	Basic success
Started	...
Astrometry.net job	7986102
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Jellyfish Nebula

Jellyfish Nebula

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Image Index:

Contribution Index (beta):

Jellyfish Nebula

Jellyfish Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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