HELIX NEBULA - NGC 7293 (Drew Evans)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: HD213055 · Helix Nebula · NGC 7293

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HELIX NEBULA - NGC 7293

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HELIX NEBULA - NGC 7293

HELIX NEBULA - NGC 7293

The Helix Nebula is a planetary nebula located in the constellation Aquarius. This object is one of the closest of all the bright planetary nebulae to Earth at 650 light-years.

The Helix Nebula has sometimes been referred to as the "Eye of God" in pop culture, as well as the "Eye of Sauron".

The Helix Nebula is an example of a planetary nebula, formed by an intermediate to low-mass star, which sheds its outer layers near the end of its evolution. Gases from the star in the surrounding space appear, from our vantage point, as if we are looking down a helix structure. The remnant central stellar core, known as the central star of the planetary nebula, is destined to become a white dwarf star.

The observed glow of the central star is so energetic that it causes the previously expelled gases to brightly fluoresce (imaged here using an HOO blend, which maps Hydrogen Alpha to red and Oxygen III to green and blue).

This image was taken over the span of several evenings, totaling 24 hours of data acquisition.

OTA: Sharpstar SCA260
Mount: iOptron CEM120
Camera: ZWO ASI2600MM Pro
Gain: 100
Cooling Temperature: -10 degrees celsius

Filters:
Chroma Ha 300s x 102 = 8.5 hrs
Chroma Ha 600s x 25 = 4.2 hrs
Chroma Oiii 300s x 15 = 1.25 hrs
Chroma Oiii 600s x 60 = 10 hrs

Auto-guiding: ZWO ASI174MM Mini and ZWO OAG-L
Auto-focusing: ZWO EAF
Control: ZWO ASIAIR Pro

Calibrated in Astro Pixel Processor with flats, darks and dark flats.
Processed in Pixinsight and Lightroom.

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	8603002
PixInsight job	HBS8K4R0YVJ69TCRZEUKMSUHM6NYSE2Z
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m37s.133
RA (top/left)	22h31m23s.230
RA (top/right)	22h29m05s.176
RA (bottom/right)	22h27m50s.835
RA (bottom/left)	22h30m09s.277

Dec (center)	-20°48′43″.60
Dec (top/left)	-20°39′50″.20
Dec (top/right)	-20°23′26″.87
Dec (bottom/right)	-20°57′32″.31
Dec (bottom/left)	-21°13′59″.17

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HELIX NEBULA - NGC 7293

HELIX NEBULA - NGC 7293

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HELIX NEBULA - NGC 7293

HELIX NEBULA - NGC 7293

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