|
gptkbp:instanceOf
|
gptkb:star
red supergiant
|
|
gptkbp:age
|
~3.4 billion years
|
|
gptkbp:apparentMagnitude
|
2.00
|
|
gptkbp:arabicName
|
Hamal (meaning 'lamb')
|
|
gptkbp:BayerDesignation
|
gptkb:Alpha_Arietis
|
|
gptkbp:catalogue
|
FK5 74
ADS 1618
BD+23 306
GC 2492
HD 12929
HIP 9884
HR 617
SAO 75051
WDS J02072+2328
|
|
gptkbp:constellation
|
Aries
|
|
gptkbp:declination
|
+23° 27′ 44.7″
|
|
gptkbp:diameter
|
15 solar radii
|
|
gptkbp:discoveredBy
|
known since antiquity
|
|
gptkbp:distanceFromEarth
|
65.8 light years
|
|
gptkbp:dominantColor
|
gptkb:orange
|
|
gptkbp:eclipticLatitude
|
+8.1°
37.7°
|
|
gptkbp:firstMagnitudeStar
|
no
|
|
gptkbp:FlamsteedDesignation
|
gptkb:13_Arietis
|
|
gptkbp:hasChineseName
|
娄宿一 (Lóu Xiù yī)
|
|
gptkbp:hasExoplanet
|
no
|
|
gptkbp:heliumFusion
|
yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Arietis
|
|
gptkbp:IAUApprovedName
|
gptkb:Hamal
|
|
gptkbp:luminosity
|
91 times solar luminosity
|
|
gptkbp:mass
|
2.0 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.09
|
|
gptkbp:otherName
|
gptkb:Hamal
|
|
gptkbp:parallax
|
49.56 mas
|
|
gptkbp:positionInConstellation
|
brightest star in Aries
|
|
gptkbp:properMotionRA
|
+188.94 mas/yr
-148.18 mas/yr
|
|
gptkbp:radialVelocity
|
-1.5 km/s
|
|
gptkbp:rightAscension
|
02h 07m 10.405s
|
|
gptkbp:rotationPeriod
|
3.44 km/s
|
|
gptkbp:spectralType
|
K2III
|
|
gptkbp:temperature
|
4,480 K
|
|
gptkbp:usedIn
|
gptkb:navigation
calendar systems
astrology
|
|
gptkbp:variableStar
|
no
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Hamal
|
|
gptkbp:bfsLayer
|
7
|