The Jellyfish Nebula (DanRossi)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: Gem A · IC 443 · IC 444 · The star Propus (ηGem)

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The Jellyfish Nebula

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The Jellyfish Nebula

Clear skies have been few and far between, but I spent a couple of them gathering RGB (moonless night) and H-Alpha (near 100% full moon) to cobble together this image. This target should really have more integration time, but I'm not sure when the next clear night will occur, so I just processed it.

Original
B
C
E
Final
F

C

Description: Using newly learned processing techniques I incorporated three sessions:

Session 1: RGB data
Session 2: Duo-narrowband data using the LeNhance filter
Session 3: Previously unused duo-narrowband data with the LeXtreme filter that I avoided because I accidentally imaged at 300 Gain. Turns out this data was still useful.

Processing: used HA and OIII extract features in APP to combine in an HOO palette. I then used Starnet++ to remove the stars and combine the RGB data/stars in Photoshop.

Uploaded: ...

F

Description: Reprocessed using improved methods from experience.

Uploaded: ...

William Optics CAT Series

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Distribution of astrophotographers

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	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
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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	4577469
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Jellyfish Nebula

The Jellyfish Nebula

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Image Index:

Contribution Index (beta):

The Jellyfish Nebula

The Jellyfish Nebula

Equipment

Acquisition details

Description

Comments

Revisions

C

F

Sky plot

Histogram

In these public groups

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