Galactic anticenter
E539430
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Galactic anticenter canonical | 1 |
| Galactic anticenter region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5726990 — 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: Galactic anticenter Context triple: [Monoceros Ring, liesNear, Galactic anticenter]
-
A.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
-
B.
Barnard's Galaxy
Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
-
C.
Zone of Avoidance of the Milky Way
The Zone of Avoidance of the Milky Way is a region of the sky heavily obscured by our galaxy’s disk, where dust and stars block the view of background galaxies and galaxy clusters.
-
D.
Antlia 2 Dwarf Galaxy
Antlia 2 Dwarf Galaxy is an extremely diffuse, low-surface-brightness satellite galaxy of the Milky Way, notable for its large size yet faint appearance and recent discovery through Gaia data.
-
E.
Gould Belt
The Gould Belt is a nearby, partial ring of young stars, gas, and star-forming regions tilted to the Milky Way’s plane and encompassing many of the bright constellations visible from Earth.
- 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: Galactic anticenter Target entity description: 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.
-
A.
Milky Way center
The Milky Way center is the dense, energetic core of our galaxy, hosting a supermassive black hole surrounded by stars, gas, and dust.
-
B.
Barnard's Galaxy
Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
-
C.
Zone of Avoidance of the Milky Way
The Zone of Avoidance of the Milky Way is a region of the sky heavily obscured by our galaxy’s disk, where dust and stars block the view of background galaxies and galaxy clusters.
-
D.
Antlia 2 Dwarf Galaxy
Antlia 2 Dwarf Galaxy is an extremely diffuse, low-surface-brightness satellite galaxy of the Milky Way, notable for its large size yet faint appearance and recent discovery through Gaia data.
-
E.
Gould Belt
The Gould Belt is a nearby, partial ring of young stars, gas, and star-forming regions tilted to the Milky Way’s plane and encompassing many of the bright constellations visible from Earth.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical point
ⓘ
direction in the sky ⓘ |
| approxDeclinationJ2000 | +28° 56′ ⓘ |
| approxGalacticQuadrant | anticenter direction in second and third Galactic quadrants ⓘ |
| approxRightAscensionJ2000 | 05h 46m ⓘ |
| belongsTo |
Milky Way disk
ⓘ
linked to:
Galactic disk
|
| bestSeenFrom | Northern hemisphere ⓘ |
| coordinateRole | reference direction for Galactic longitude measurements ⓘ |
| coordinateSystem | Galactic coordinates ⓘ |
| definedAs | point in the sky directly opposite the Galactic center ⓘ |
| distanceFromGalacticCenter |
about 26,000 light-years
ⓘ
about 8 kiloparsecs ⓘ |
| equatorialCoordinateSystemEpoch | J2000 ⓘ |
| frameOfReference | Sun-centered Galactic coordinate system ⓘ |
| galacticLatitude | 0 degrees ⓘ |
| galacticLongitude | 180 degrees ⓘ |
| liesIn | outer region of the Milky Way disk ⓘ |
| liesInConstellation | Auriga ⓘ |
| liesNear |
Galactic plane
ⓘ
linked to:
Galactic disk
|
| locatedIn | Milky Way ⓘ |
| nearbyNotableObject |
Flaming Star Nebula (IC 405)
ⓘ
linked to:
Flaming Star Nebula
IC 410 ⓘ open cluster M36 ⓘ
linked to:
Messier 36
open cluster M37 ⓘ
linked to:
Messier 37
open cluster M38 ⓘ
linked to:
Messier 38
|
| nearConstellationBoundaryWith | Gemini ⓘ |
| observationalProperty | less obscured by interstellar dust than Galactic center ⓘ |
| observationalUse |
mapping spiral structure of the Milky Way
ⓘ
studies of Galactic metallicity gradients ⓘ studies of Galactic warp and flaring ⓘ studies of outer Galactic disk ⓘ studies of outer Galaxy star formation ⓘ |
| oppositeDirectionFromSun | Galactic center direction ⓘ |
| oppositeOf |
Galactic center
ⓘ
linked to:
Milky Way center
|
| relatedTo | Galactic longitude axis ⓘ |
| scientificDiscipline |
Galactic astronomy
ⓘ
astrophysics ⓘ |
| skyRegionType | low stellar density compared to Galactic center ⓘ |
| symbolicGalacticLatitude | b = 0° ⓘ |
| symbolicGalacticLongitude | l = 180° ⓘ |
| usedIn | Galactic coordinate system ⓘ |
| visibility | observable from both Northern and Southern hemispheres ⓘ |
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: Galactic anticenter Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Galactic anticenter