Helix Nebula - The Eye of God (Chad Sullivan)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: Helix Nebula · NGC 7293 · PK036-57.1

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Helix Nebula - The Eye of God

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Helix Nebula - The Eye of God

Helix Nebula from outside Atlanta, GA [Bortle 6]

Acquired on November 17 and 18, 2020

Equipment:

Celestron Nexstar 8i OTA

Sirius EQ-G mount

Primary Camera = ZWO ASI1600MM-Pro Cooled to -15°C

Guide Camera = ZWO ASI174mm-mini via Celestron OAG

Pegasus AstroFocusCube 2

QHY CFW3 Filter Wheel (7 slot)

Acquisition:

245min total (~4hr)

26 HA @ 300s with unity gain @ -15C

23 O3 @ 300s with unity gain @ -15C

Captured in N.I.N.A v1.11

Processing via PixInsight:

Blink to remove obvious bad subs

WeightedBatchPreProcessing for Calibration

SubframeSelector

StarAlignment

Blink to locate best frame for LocalNormalization

LocalNormalization

ImageIntegration

DrizzleIntegration

DynamicCrop

DBE

LinearFit

PixelMath for Color Combination:

R: HA

G: 0.6*HA + 0.4*O3

B: O3

EZ Decon (on both RGB and HA as Lum)

EZ Denoise (on both RGB and HA as Lum)

EZ SoftStretch (on both RGB and HA as Lum)

LRGBCombination x2 to add L Channel

CurvesTransformation (adjust b, H, and S)

EZ HDR

EZ Star Reduction

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	4027922
PixInsight job	CZ2Q80YIM6GLU08MF76N9TYXCUE4DKRW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h29m38s.203
RA (top/left)	22h28m38s.140
RA (top/right)	22h28m39s.608
RA (bottom/right)	22h30m38s.553
RA (bottom/left)	22h30m36s.565

Dec (center)	-20°50′29″.37
Dec (top/left)	-20°32′15″.57
Dec (top/right)	-21°09′00″.20
Dec (bottom/right)	-21°08′42″.50
Dec (bottom/left)	-20°31′56″.99

Image Index:

Contribution Index (beta):

Helix Nebula - The Eye of God

Helix Nebula - The Eye of God

Equipment

Acquisition details

Description

Comments

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Image Index:

Contribution Index (beta):

Helix Nebula - The Eye of God

Helix Nebula - The Eye of God

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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