North Ecliptic Pole
E572582
The North Ecliptic Pole is the point in the sky where the Earth's axis of orbital motion around the Sun intersects the celestial sphere in the northern direction, lying perpendicular to the plane of the ecliptic.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ecliptic | 1 |
| North Ecliptic Pole canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6174834 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Ecliptic Pole Context triple: [Northern Celestial Hemisphere, contains, North Ecliptic Pole]
-
A.
Galactic anticenter
The Galactic anticenter is the point in the sky directly opposite the center of the Milky Way, located in the outer region of our galaxy’s disk.
-
B.
Crux Australis
Crux Australis is the Latin name for the Southern Cross, a prominent constellation in the southern sky used historically for navigation and featured on several national flags.
-
C.
Gamma Coronae Australis
Gamma Coronae Australis is a star in the southern constellation Corona Australis, visible to the naked eye and used as a reference point in that region of the sky.
-
D.
Epsilon Canis Majoris
Epsilon Canis Majoris, also known as Adhara, is a bright blue-white giant star and one of the most luminous stars visible from Earth, located in the constellation Canis Major.
-
E.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: North Ecliptic Pole Target entity description: The North Ecliptic Pole is the point in the sky where the Earth's axis of orbital motion around the Sun intersects the celestial sphere in the northern direction, lying perpendicular to the plane of the ecliptic.
-
A.
Galactic anticenter
The Galactic anticenter is the point in the sky directly opposite the center of the Milky Way, located in the outer region of our galaxy’s disk.
-
B.
Crux Australis
Crux Australis is the Latin name for the Southern Cross, a prominent constellation in the southern sky used historically for navigation and featured on several national flags.
-
C.
Gamma Coronae Australis
Gamma Coronae Australis is a star in the southern constellation Corona Australis, visible to the naked eye and used as a reference point in that region of the sky.
-
D.
Epsilon Canis Majoris
Epsilon Canis Majoris, also known as Adhara, is a bright blue-white giant star and one of the most luminous stars visible from Earth, located in the constellation Canis Major.
-
E.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical point
ⓘ
celestial pole ⓘ direction in space ⓘ |
| belongsTo | solar system reference frame ⓘ |
| coordinateSystem | ecliptic coordinate system ⓘ |
| declination_J2000 | +66.56 degrees ⓘ |
| hasAngularSeparationFromNorthCelestialPole | about 23.4 degrees ⓘ |
| hasCoordinateEpoch | J2000.0 ⓘ |
| hasEclipticLatitude | +90 degrees ⓘ |
| hasEclipticLongitude | undefined ⓘ |
| hasSymmetryWith | South Ecliptic Pole ⓘ |
| isAffectedBy | precession of the equinoxes ⓘ |
| isApproximately |
90 degrees from the Sun's apparent path
ⓘ
90 degrees from the ecliptic on the celestial sphere ⓘ |
| isDefinedAs | northward normal to the ecliptic plane ⓘ |
| isDefinedBy | Earth's orbital motion around the Sun ⓘ |
| isDefinedIn | celestial coordinate systems ⓘ |
| isDefinedRelativeTo | Earth-Sun orbital plane ⓘ |
| isFixedRelativeTo | ecliptic plane ⓘ |
| isImportantFor | defining seasons on Earth ⓘ |
| isLessAffectedBy |
ecliptic plane dust
ⓘ
zodiacal light ⓘ |
| isLocatedIn | northern celestial hemisphere ⓘ |
| isNear |
constellation Cepheus
ⓘ
constellation Cygnus ⓘ constellation Draco ⓘ |
| isObservationRegionFor |
infrared sky surveys
ⓘ
microwave background observations ⓘ space telescope deep fields ⓘ |
| isOppositeOf | South Ecliptic Pole ⓘ |
| isPerpendicularTo | ecliptic plane ⓘ |
| isReferenceFor |
ecliptic latitude measurements
ⓘ
orientation of asteroid orbits ⓘ orientation of comet orbits ⓘ orientation of planetary orbits ⓘ |
| isRelatedTo | obliquity of the ecliptic ⓘ |
| isUsedAs | survey field center in some sky surveys ⓘ |
| isUsedBy |
astrometry
ⓘ
celestial mechanics ⓘ space mission planning ⓘ |
| isUsedFor |
defining ecliptic coordinates
ⓘ
orienting space observatories ⓘ studying solar system dynamics ⓘ |
| isUsedIn |
cosmological surveys
ⓘ
solar system reference frames ⓘ |
| liesOn | celestial sphere ⓘ |
| rightAscension_J2000 | 18h ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: North Ecliptic Pole Description of subject: The North Ecliptic Pole is the point in the sky where the Earth's axis of orbital motion around the Sun intersects the celestial sphere in the northern direction, lying perpendicular to the plane of the ecliptic.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: North Ecliptic Pole