The Medusa Nebula (kv54)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: HD59309 · PK205+14.1 · Sh2-274

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The Medusa Nebula

Revision title: New version with H-Alpha

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

The Medusa Nebula

Revision title: New version with H-Alpha

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Process in Pixinsight:
- Automatic Background Extraction
- Color Channel Alignment
- SpectroPhotometricColorCalibration
- BlurXTerminator
- NoiseXTerminator
- ArcsinhStretch
- Automatic Background Extraction

Original
Final
B
C
D

B

Title: New version with H-Alpha

Description: Process in PixInsight:
- GraXpert AI
- RGBHa Combination (Linear Fit of Ha -> R, R' = Max(R,Ha))
- SpectroPhotometricColorCalibration
- BlurXTerminator
- NoiseXTerminator
- Iterative ArcsinhStretch
- GraXpert AI
- SCNR

Uploaded: ...

C

Title: Pure H-Alpha Version

Description: Process in Pixinsight:
- GraXPert AI
- BlurXTerminator
- NoiseXTerminator
- MaskedStretch

Uploaded: ...

D

Title: Starless H-Alpha + RGB Stars

Description: Process in Pixinsight:

- H-Alpha (N):
- GraXPert AI
- BlurXTerminator
- NoiseXTerminator
- Masked Stretch
- StarXTerminator
- CloneStamp for removal of single bright star

-Linear RGB (S):
- SpectroPhotometricColorCalibration
- ArcshinhStretch (10)

- Pixelmath Combination of starless H-Alpha with RGB stars: (R, G, B) = (N+S, S, S)
- Automatic Background Extraction with constant

Uploaded: ...

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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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
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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
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Amateur hosting facility
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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	9127334
PixInsight job	L5IQBMGDQEPSSE4C52YC5JWTL9KDDTE6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h29m04s.24
RA (top/left)	07h27m21s.28
RA (top/right)	07h30m46s.77
RA (bottom/right)	07h30m47s.34
RA (bottom/left)	07h27m21s.70

Dec (center)	+13°16′30″.9
Dec (top/left)	+12°51′27″.9
Dec (top/right)	+12°51′25″.8
Dec (bottom/right)	+13°41′32″.1
Dec (bottom/left)	+13°41′32″.9

Image Index:

Contribution Index (beta):

The Medusa Nebula

Revision title: New version with H-Alpha

The Medusa Nebula

Revision title: New version with H-Alpha

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

Sky plot

Histogram

In these public groups

In these collections

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Image Index:

Contribution Index (beta):

The Medusa Nebula

Revision title: New version with H-Alpha

The Medusa Nebula

Revision title: New version with H-Alpha

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

Sky plot

Histogram

In these public groups

In these collections

Notifications

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