NGC 7293, The Helix Nebula (Ruben Barbosa)

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

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NGC 7293, The Helix Nebula

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NGC 7293, The Helix Nebula

* Image acquisition by Jim Misti.

* Processing: Ruben Barbosa.

The Helix Nebula is a large planetary nebula located in the constellation Aquarius. Tthis object is one of the closest to the Earth of all the bright planetary nebulae. The estimated distance is about 700 light-years.

It is similar in appearance to the Cat's Eye Nebula and the Ring Nebula, whose size, age, and physical characteristics are similar to the Dumbbell Nebula, varying only in its relative proximity and the appearance from the equatorial viewing angle. 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 a planetary nebula nucleus, 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.

1. Nebulae

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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	3572585
PixInsight job	7UVWCA3RE8URYFCDUQIMNMLMBSHMRBAC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h29m38s.833
RA (top/left)	22h29m15s.809
RA (top/right)	22h30m31s.834
RA (bottom/right)	22h30m01s.903
RA (bottom/left)	22h28m45s.825

Dec (center)	-20°50′02″.63
Dec (top/left)	-20°38′51″.55
Dec (top/right)	-20°49′21″.72
Dec (bottom/right)	-21°01′13″.37
Dec (bottom/left)	-20°50′42″.59

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NGC 7293, The Helix Nebula

NGC 7293, The Helix Nebula

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NGC 7293, The Helix Nebula

NGC 7293, The Helix Nebula

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