Sirius

E190097

A-type main-sequence star astronomical object binary star system main-sequence star star star system stellar system white dwarf

Sirius is the brightest star in the night sky, a nearby binary star system in the constellation Canis Major that has featured prominently in astronomy, mythology, and literature.

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All labels observed (5)

Label	Occurrences
Sirius canonical	13
Sirius A	3
Alpha Canis Majoris	1
Sirius (star)	1
Sirius B	1

Statements (62)

Predicate	Object
instanceOf	A-type main-sequence star ⓘ astronomical object ⓘ binary star system ⓘ main-sequence star ⓘ star ⓘ star ⓘ star system ⓘ stellar system ⓘ white dwarf ⓘ
alsoKnownAs	Alpha Canis Majoris ⓘ Canicula ⓘ Dog Star ⓘ Sothis ⓘ
apparentMagnitude	−1.46 ⓘ
belongsTo	Milky Way ⓘ
culturalSignificance	important in Greek mythology ⓘ important in Polynesian navigation ⓘ important in Roman mythology ⓘ important in ancient Egyptian astronomy ⓘ
declination_J2000	−16° 42′ 58″ ⓘ
distanceFromEarth_ly	about 8.6 ⓘ
distanceFromEarth_pc	about 2.64 ⓘ
effectiveTemperature_K	about 25200 ⓘ about 9940 ⓘ
featuredIn	astronomy literature ⓘ fiction and popular culture ⓘ mythology ⓘ
hasBayerDesignation	Alpha Canis Majoris ⓘ surface form: α Canis Majoris
hasCompanionType	degenerate star ⓘ
hasComponent	Sirius self-linksurface differs ⓘ surface form: Sirius A Sirius self-linksurface differs ⓘ surface form: Sirius B
hasFlamsteedDesignation	Alpha Canis Majoris ⓘ surface form: 9 Canis Majoris
hasGlieseDesignation	Gliese 244 ⓘ
hasHDDesignation	HD 48915 ⓘ
hasHIPDesignation	HIP 32349 ⓘ
hasHRDesignation	HR 2491 ⓘ
hasProperMotion	yes ⓘ
heliacalRisingAssociatedWith	Nile flooding in ancient Egypt ⓘ
isBrightestStarIn	night sky ⓘ
isNearestATypeStarToSun	true ⓘ
isStandardStarFor	photometric calibration ⓘ
locatedInConstellation	Canis Major ⓘ
luminosity_solarLuminosity	about 25 ⓘ
mass_solarMass	about 1.0 ⓘ about 2.0 ⓘ
memberOf	Local Bubble ⓘ
nameOrigin	Greek word "Seirios" meaning "glowing" or "scorching" ⓘ
observedBy	Hipparcos satellite ⓘ Hubble Space Telescope ⓘ
orbitalEccentricity	about 0.59 ⓘ
orbitalPeriod_years	about 50.1 ⓘ
parallax_mas	about 379.21 ⓘ
properMotion_Dec_masPerYear	about −1223.1 ⓘ
properMotion_RA_masPerYear	about −546.0 ⓘ
radialVelocity_kmPerSec	about −5.5 ⓘ
radius_earthRadius	about 0.0084 ⓘ
radius_solarRadius	about 1.7 ⓘ
rightAscension_J2000	06h 45m 08.9s ⓘ
spectralType	A1V ⓘ A1V ⓘ DA2 ⓘ
visibleFrom	both hemispheres ⓘ

Referenced by (19)

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

Micromégas → setting → Sirius ⓘ

Sothis → associatedWith → Sirius ⓘ

Sothis → personifies → Sirius ⓘ

Sothis → celestialBody → Sirius ⓘ

Sothis → astronomicalIdentity → Sirius ⓘ

this entity surface form: Sirius A

Olaf Stapledon → notableWork → Sirius ⓘ

Local Fluff → isNear → Sirius ⓘ

Canis Major → contains → Sirius ⓘ

this entity surface form: Alpha Canis Majoris

Canis Major → containsBrightestStarInNightSky → Sirius ⓘ

Seven Sirius Benjamin → middleName → Sirius ⓘ

IK Sirius Bandy → hasAbbreviation → Sirius ⓘ

Sirius → hasComponent → Sirius self-linksurface differs ⓘ

this entity surface form: Sirius A

Sirius → hasComponent → Sirius self-linksurface differs ⓘ

this entity surface form: Sirius B

Sopdet → personifies → Sirius ⓘ

Sopdet → celestialObject → Sirius ⓘ

Spdt → correspondsToStar → Sirius ⓘ

Spdt → equivalentInModernAstronomy → Sirius ⓘ

this entity surface form: Sirius A

HMS Sirius → namedAfter → Sirius ⓘ

this entity surface form: Sirius (star)