Beta Monocerotis

E555753

Beta Monocerotis is a bright multiple-star system in the constellation Monoceros, notable for its visually striking trio of closely spaced, luminous stars.

All labels observed (6)

Label Occurrences
Beta Monocerotis canonical 1
Beta Monocerotis A 1
Beta Monocerotis B 1

How this entity was disambiguated

Statements (42)

Predicate Object
instanceOf multiple star system
apparentMagnitudeV 4.60
5.40
5.60
bestSeenFrom Northern Hemisphere
bestSeenInMonth February
colorIndexBminusV −0.18
component Beta Monocerotis A
linked to: Beta Monocerotis

Beta Monocerotis B
linked to: Beta Monocerotis

Beta Monocerotis C
linked to: Beta Monocerotis
constellation Monoceros
declination −07° 01′ 59″
discoverer Giovanni Battista Hodierna
discoveryCentury 17th century
distanceFromEarth_ly ~690
distanceFromEarth_pc ~210
effectiveTemperature_K ~17000
~18000
equatorialCoordinateEpoch J2000
galacticPopulation thin disk
hasOpticalMultiplicity true
hemisphere celestial equator region
isNakedEyeVisible true
luminosity_solar ~1600
~3200
mass_solar ~6.0
~6.2
~7.1
notableFor closely spaced luminous components
visually striking triple star
numberOfComponents 3
otherName β Mon
linked to: Beta Monocerotis

β Monocerotis
linked to: Beta Monocerotis
parallax_mas ~4.75
parallaxError_mas ~0.16
properMotionDec_masPerYr −0.7
properMotionRA_masPerYr −3.9
radialVelocity_kmPerSec ~+22
rightAscension 06h 28m 49s
spectralType B3V
B3Ve
variableStarType Be star system

How these facts were elicited

Referenced by (6)

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

Monoceros contains Beta Monocerotis
Beta Monocerotis otherName β Monocerotis
linked to: Beta Monocerotis
Beta Monocerotis otherName β Mon
linked to: Beta Monocerotis
Beta Monocerotis component Beta Monocerotis A
linked to: Beta Monocerotis
Beta Monocerotis component Beta Monocerotis B
linked to: Beta Monocerotis
Beta Monocerotis component Beta Monocerotis C
linked to: Beta Monocerotis