47 Ursae Majoris
E918828
47 Ursae Majoris is a Sun-like star in the constellation Ursa Major known for hosting one of the first discovered multi-planet exoplanet systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 47 Ursae Majoris canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11317399 — 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: 47 Ursae Majoris Context triple: [Cosmic Call 1999, targetedStarSystem, 47 Ursae Majoris]
-
A.
Gamma Eridani
Gamma Eridani, traditionally known as Zaurak, is a red giant star in the constellation Eridanus visible to the naked eye.
-
B.
Beta Eridani
Beta Eridani, traditionally known as Cursa, is a bright blue-white giant star in the constellation Eridanus visible to the naked eye.
-
C.
Theta Eridani
Theta Eridani is a bright binary star system in the constellation Eridanus, visible to the naked eye and often used as a reference point in the southern sky.
-
D.
Epsilon Microscopii
Epsilon Microscopii is a relatively bright star located in the southern constellation Microscopium.
-
E.
46 Orionis
46 Orionis is a star in the constellation Orion, known as the Flamsteed-designated counterpart of the bright central belt star Alnilam.
- 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: 47 Ursae Majoris Target entity description: 47 Ursae Majoris is a Sun-like star in the constellation Ursa Major known for hosting one of the first discovered multi-planet exoplanet systems.
-
A.
Gamma Eridani
Gamma Eridani, traditionally known as Zaurak, is a red giant star in the constellation Eridanus visible to the naked eye.
-
B.
Beta Eridani
Beta Eridani, traditionally known as Cursa, is a bright blue-white giant star in the constellation Eridanus visible to the naked eye.
-
C.
Theta Eridani
Theta Eridani is a bright binary star system in the constellation Eridanus, visible to the naked eye and often used as a reference point in the southern sky.
-
D.
Epsilon Microscopii
Epsilon Microscopii is a relatively bright star located in the southern constellation Microscopium.
-
E.
46 Orionis
46 Orionis is a star in the constellation Orion, known as the Flamsteed-designated counterpart of the bright central belt star Alnilam.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
G-type star
ⓘ
main-sequence star ⓘ planetary system host star ⓘ star ⓘ |
| absoluteMagnitudeV | about 4.3 ⓘ |
| age_gyr | approximately 6.0 ⓘ |
| apparentMagnitudeV | 5.03 ⓘ |
| approximateVisualColor | yellow ⓘ |
| bayerDesignation | χ Ursae Majoris NERFINISHED ⓘ |
| chromosphericActivity | low ⓘ |
| constellation | Ursa Major NERFINISHED ⓘ |
| declination | +40° 25′ 49″ ⓘ |
| discoveryMethodOfPlanets | radial velocity ⓘ |
| distanceFromEarth_ly | approximately 46 ⓘ |
| distanceFromEarth_pc | approximately 14.0 ⓘ |
| effectiveTemperature_K | about 5800 ⓘ |
| flamsteedDesignation | 47 Ursae Majoris NERFINISHED ⓘ |
| galacticLatitude_deg | +59.4 ⓘ |
| galacticLongitude_deg | 177.9 ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasExoplanet |
47 Ursae Majoris b
NERFINISHED
ⓘ
47 Ursae Majoris c NERFINISHED ⓘ 47 Ursae Majoris d NERFINISHED ⓘ |
| hasRadialVelocityPlanetDiscovery |
47 Ursae Majoris b
NERFINISHED
ⓘ
47 Ursae Majoris c NERFINISHED ⓘ 47 Ursae Majoris d NERFINISHED ⓘ |
| hostOfGasGiantPlanets | yes ⓘ |
| luminosity_solarLuminosity | approximately 1.6 ⓘ |
| mass_solarMass | approximately 1.03 ⓘ |
| metallicity_Fe_H | about +0.01 ⓘ |
| notableFor | hosting one of the first discovered multi-planet exoplanet systems ⓘ |
| otherDesignation |
BD+41 2147
NERFINISHED
ⓘ
Chi Ursae Majoris NERFINISHED ⓘ HD 95128 NERFINISHED ⓘ HIP 53721 NERFINISHED ⓘ HR 4277 NERFINISHED ⓘ |
| parallax_mas | about 71 ⓘ |
| planetarySystem | 47 Ursae Majoris planetary system NERFINISHED ⓘ |
| radius_solarRadius | approximately 1.2 ⓘ |
| rightAscension | 10h 59m 28s ⓘ |
| rotation | relatively slow ⓘ |
| similarTo | Sun NERFINISHED ⓘ |
| skyLocationHemisphere | northern celestial hemisphere ⓘ |
| solarAnalog | yes ⓘ |
| spectralType | G1V ⓘ |
| variableStarType | none known ⓘ |
| visibilityToNakedEye | yes under dark skies ⓘ |
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: 47 Ursae Majoris Description of subject: 47 Ursae Majoris is a Sun-like star in the constellation Ursa Major known for hosting one of the first discovered multi-planet exoplanet systems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cosmic Call 1999