Delta Orionis
E544956
Delta Orionis, traditionally known as Mintaka, is a multiple star system that forms the westernmost star in Orion’s Belt and serves as an important navigational and astrophysical reference point.
Observed surface forms (5)
| Surface form | Occurrences |
|---|---|
| δ Orionis | 1 |
| Delta Orionis A | 0 |
| Delta Orionis Aa | 0 |
| Delta Orionis Aa1 | 0 |
| Delta Orionis Aa2 | 0 |
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
B-type main-sequence star
ⓘ
O-type giant star ⓘ multiple star system ⓘ |
| formsPartOfAsterism | Orion's Belt NERFINISHED ⓘ |
| hasApparentMagnitudeV | 2.23 ⓘ |
| hasBayerDesignation | δ Orionis NERFINISHED ⓘ |
| hasComponent |
Delta Orionis A
NERFINISHED
ⓘ
Delta Orionis Aa NERFINISHED ⓘ Delta Orionis Aa1 NERFINISHED ⓘ Delta Orionis Aa2 NERFINISHED ⓘ Delta Orionis Ab NERFINISHED ⓘ Delta Orionis B NERFINISHED ⓘ Delta Orionis C NERFINISHED ⓘ |
| hasDeclination | +00° 17′ 57″ ⓘ |
| hasDistanceFromEarth_ly | ~1200 ⓘ |
| hasEffectiveTemperature_K | ~30000 ⓘ |
| hasEquinox | J2000.0 ⓘ |
| hasFlamsteedDesignation | 34 Orionis NERFINISHED ⓘ |
| hasLuminosity_solarLuminosities | >100000 ⓘ |
| hasMass_solarMasses | >20 ⓘ |
| hasOrbitalPeriod_days | ~5.7 ⓘ |
| hasOtherDesignation |
HD 36486
NERFINISHED
ⓘ
HIP 25930 NERFINISHED ⓘ HR 1852 NERFINISHED ⓘ |
| hasParallax_mas | ~2.5 ⓘ |
| hasRadialVelocity_kmPerSec | ~+25 ⓘ |
| hasRightAscension | 05h 32m 00s ⓘ |
| hasSpectralType | O9.5 II ⓘ |
| hasTraditionalName | Mintaka NERFINISHED ⓘ |
| hasVariableType | eclipsing binary ⓘ |
| isBestSeenInMonth | January ⓘ |
| isBrightestComponent | Delta Orionis Aa1 NERFINISHED ⓘ |
| isEclipsingBinary | true ⓘ |
| isImportantFor |
astrophysical calibration
ⓘ
stellar evolution studies ⓘ |
| isMassiveStarSystem | true ⓘ |
| isSpectroscopicBinary | true ⓘ |
| isUsedAs | navigational reference star ⓘ |
| isVariableStar | true ⓘ |
| isWesternmostStarOf | Orion's Belt NERFINISHED ⓘ |
| locatedInConstellation | Orion NERFINISHED ⓘ |
| visibleFrom | both hemispheres ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
δ Orionis