NGC 7293: Helix Nebula (ivnlpz)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: HD213056 · HD213069 · Helix Nebula · NGC 7293

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NGC 7293: Helix Nebula

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NGC 7293: Helix Nebula

The Helix Nebula is a planetary nebula (PN) located in the constellation Aquarius. It is not only one of the brightest near-Earth planetary nebula in the night sky, but it is also one of the most famous. The Helix nebula's unique appearance has earned it the pop culture nickname of "The Eye of God."

Deviated my usual process here to reduce the guiding errors clearly noticeable on most stars. Used this process from Steve333 to repair elongated stars with great results.

Preprocessing in PI:
- WBPP
- ImageIntegration

Processing in PI:
- DynamicCrop
- DBE
- NoiseXterminator
- LinearFit Oiii using Ha as reference
- GHS
- PixelMath to create SHO image
- SCNR
- LRGBCombination using Ha as luminance
- TGVDenoise
- ACDNR
- StarXterminator

Stars:
- SCNR
- CorrectMagentaStars
- HistogramTransformation
- PixelMath to create shifted image using linked guide
- PixelMath to create repaired stars
- Convolution to remove artifacts from PixelMath processes
- CurvesTransformation

Starless nebula:
- CurvesTransformation
- LocalHistogramEqualization using RangeSelection mask
- MLT to slightly sharpen
- DarkStructureEnhance
- ColorSaturation
- Final curves
- Rescreen repaired stars back into nebula

Narrowband imaging
PixInsight Addicts
Images from the EdgeHD Series
Suburban Astrophotography
/r/astrophotography
Schmidt-Cassegrain Telescope (SCT) Imagers
N.I.N.A. Users
Texas Astronomy

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	Advanced success
Started	...
Astrometry.net job	6410231
PixInsight job	P86B1938U5GTI6DBAHDBHVORDC9VEUPT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m39s.264
RA (top/left)	22h31m18s.378
RA (top/right)	22h29m19s.726
RA (bottom/right)	22h28m00s.255
RA (bottom/left)	22h29m58s.883

Dec (center)	-20°50′19″.92
Dec (top/left)	-20°54′53″.50
Dec (top/right)	-20°27′09″.52
Dec (bottom/right)	-20°45′42″.23
Dec (bottom/left)	-21°13′29″.35

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NGC 7293: Helix Nebula

NGC 7293: Helix Nebula

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Image Index:

Contribution Index (beta):

NGC 7293: Helix Nebula

NGC 7293: Helix Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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