HD 48915

E712263

HD 48915 is the Henry Draper Catalogue designation for Sirius, the brightest star in the night sky located in the constellation Canis Major.

All labels observed (1)

Label Occurrences
HD 48915 canonical 5

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf star
absoluteMagnitudeV 1.43
age about 200 million years
alsoKnownAs Alpha Canis Majoris
Canicula
Dog Star
Sirius
α Canis Majoris
linked to: Alpha Canis Majoris
apparentMagnitudeV −1.46
belongsToAsterism Winter Triangle
catalogDesignation BD−16 1591
Gliese 244
HD 48915
HIP 32349
HR 2491
colorIndexB−V 0.00
companionType white dwarf
declination −16° 42′ 58.02″
distanceFromEarth about 8.6 light-years
distanceFromSun about 2.64 parsecs
effectiveTemperature about 9940 K
equatorialCoordinateSystem ICRS
galacticLatitude −8.89°
galacticLongitude 227.23°
hasCompanion Sirius B
hasCulturalSignificanceIn Greek astronomy
Polynesian navigation
ancient Egyptian astronomy
hemisphereVisibility both hemispheres
isBrightestStarIn constellation Canis Major
linked to: Canis Major

night sky
isNearestATypeStarToSun true
isStandardStarFor photometric calibration
locatedInConstellation Canis Major
luminosity about 25 solar luminosities
mass about 2.0 solar masses
metallicity[Fe/H] about +0.4
orbitalPeriodWithCompanion about 50.1 years
parallax 379.21 mas
properMotionDec −1223.08 mas/yr
properMotionRA −546.01 mas/yr
radialVelocity −5.5 km/s
radius about 1.7 solar radii
rightAscension 06h 45m 08.917s
spectralType A1V
systemType binary star system
visibleFromLatitude up to about 73° N

How these facts were elicited

Referenced by (5)

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

Sirius hasHDDesignation HD 48915
HD 48915 catalogDesignation HD 48915
Gliese 244 HDDesignation HD 48915