Messier 44

E139728

Messier 44, also known as the Beehive Cluster or Praesepe, is a bright open star cluster visible to the naked eye and one of the nearest such clusters to Earth.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (1)

Label Occurrences
Messier 44 canonical 5

Statements (48)

Predicate Object
instanceOf Messier object
deep-sky object
open star cluster
age about 600 million years
angularSize 95 arcminutes
apparentMagnitudeV 3.7
bestSeenFromHemisphere Northern Hemisphere
bestSeenIn spring
cataloguedBy Charles Messier
catalogueNumber M44
Messier 44 self-link
NGC 2632
contains red giant stars
white dwarf stars
containsApproximateNumberOfStars about 1000
containsExoplanetHostStars true
declination +19° 40′
discoveredInAntiquity true
distanceFromEarth about 177 parsecs
about 577 light-years
galacticLatitude +32.5 degrees (approximate)
galacticLongitude 205.9 degrees (approximate)
hasAlternativeName Beehive Cluster
M44
NGC 2632
Praesepe
hasCoreRadius about 3.5 light-years
hasDiscoveryStatus known since antiquity
hasIntegratedSpectralType A7
hasMeanRadialVelocity about 33 km/s
hasShape loosely concentrated
hasSpectralTypeRange A to K
hasTidalRadius about 39 light-years
hasTotalMass about 500 solar masses
isGravitationallyBoundSystem true
isOneOfNearestOpenClustersToEarth true
isPartOf Messier catalogue
surface form: Messier Catalogue

New General Catalogue
locatedIn Milky Way
Orion Arm
locatedInConstellation Cancer
metallicityRelativeToSun approximately solar
observedSince ancient times
rightAscension 08h 40m
similarInAgeTo Hyades
visibleInBinoculars true
visibleInSmallTelescope true
visibleToNakedEye true

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: Messier 44
Description of subject: Messier 44, also known as the Beehive Cluster or Praesepe, is a bright open star cluster visible to the naked eye and one of the nearest such clusters to Earth.

Referenced by (5)

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

constellation Cancer containsDeepSkyObject Messier 44
subject surface form: Cancer
Beehive Cluster alsoKnownAs Messier 44
Praesepe hasAlternativeName Messier 44
Messier 44 catalogueNumber Messier 44 self-link
Delta Cancri isNear Messier 44