Helix Nebula

E867056
emission nebula planetary nebula

The Helix Nebula is a large, nearby planetary nebula often called the "Eye of God," formed from the outer layers of a dying Sun-like star and located in the constellation Aquarius.

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Observed surface forms (1)

Surface form Occurrences
Saturn Nebula 1

Statements (48)

Predicate Object
instanceOf emission nebula ⓘ
planetary nebula ⓘ
alsoKnownAs Caldwell 63 NERFINISHED ⓘ
Eye of God NERFINISHED ⓘ
Eye of Sauron Nebula NERFINISHED ⓘ
NGC 7293 NERFINISHED ⓘ
angularSize about 25 arcminutes ⓘ
apparentMagnitudeV 7.6 ⓘ
bestSeenFrom Southern Hemisphere NERFINISHED ⓘ
bestSeenInMonth August ⓘ
October ⓘ
September ⓘ
catalogCode Caldwell 63 NERFINISHED ⓘ
NGC 7293 NERFINISHED ⓘ
centralStarApparentMagnitudeV 13.5 ⓘ
centralStarEffectiveTemperature about 120000 K ⓘ
centralStarInstanceOf white dwarf ⓘ
centralStarSpectralType DAO ⓘ
contains cometary knots ⓘ
dust ⓘ
ionized hydrogen gas ⓘ
ionized oxygen gas ⓘ
molecular hydrogen ⓘ
declination −20° 50′ 13.6″ ⓘ
discoveredBy Karl Ludwig Harding NERFINISHED ⓘ
discoveryDate 1824 ⓘ
distanceFromEarth about 200 parsecs ⓘ
about 650 light-years ⓘ
estimatedAge about 10000 years ⓘ
expansionVelocity about 20 km/s ⓘ
formedBy stellar mass loss ⓘ
galacticLatitude −57.1° ⓘ
galacticLongitude 36.1° ⓘ
hasShape barrel-shaped 3D structure ⓘ
ring-like structure ⓘ
locatedIn Galactic disk NERFINISHED ⓘ
Milky Way ⓘ
locatedInConstellation Aquarius NERFINISHED ⓘ
observedIn X-ray wavelengths ⓘ
infrared wavelengths ⓘ
optical wavelengths ⓘ
ultraviolet wavelengths ⓘ
originatesFrom outer layers of a dying Sun-like star ⓘ
partOf Caldwell catalogue NERFINISHED ⓘ
New General Catalogue NERFINISHED ⓘ
rightAscension 22h 29m 38.55s ⓘ
visibleWith large binoculars ⓘ
small telescope ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Aquarius → containsDeepSkyObject → Helix Nebula ⓘ
Aquarius → deepSkyObjectCommonName → Helix Nebula ⓘ
Aquarius → deepSkyObjectCommonName → Helix Nebula ⓘ
this entity surface form: Saturn Nebula