|
gptkbp:instanceOf
|
gptkb:star
binary star system
|
|
gptkbp:age
|
1.6 billion years
|
|
gptkbp:apparentMagnitude
|
3.42
1.09
|
|
gptkbp:BayerDesignation
|
α Trianguli
|
|
gptkbp:catalogueNumber
|
ADS 1613
BD+28 279
FK5 102
HD 9446
HIP 7568
HR 456
SAO 55357
WDS J02095+2905
|
|
gptkbp:component
|
Triangulum constellation
|
|
gptkbp:declination
|
+29° 05′ 26″
|
|
gptkbp:diameter
|
3.2 solar radii
|
|
gptkbp:discoveredBy
|
ancient astronomers
|
|
gptkbp:distanceFromEarth
|
63 light years
|
|
gptkbp:eclipsingBinary
|
no
|
|
gptkbp:FlamsteedDesignation
|
3 Trianguli
|
|
gptkbp:hasCompanion
|
unseen secondary star
|
|
gptkbp:hasExoplanet
|
no known exoplanets
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alpha Trianguli
|
|
gptkbp:IAUApprovedName
|
gptkb:Alpha_Trianguli
|
|
gptkbp:locatedIn
|
constellation Triangulum
|
|
gptkbp:luminosity
|
29 times solar luminosity
|
|
gptkbp:mass
|
1.7 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] ≈ 0.0
|
|
gptkbp:notableFeature
|
brightest star in Triangulum
|
|
gptkbp:orbitType
|
1.736 days
|
|
gptkbp:otherName
|
Caput Trianguli
Ras al Muthallah
|
|
gptkbp:parallax
|
0.18 mas
51.78 mas
|
|
gptkbp:properMotionRA
|
-11.74 mas/yr
+120.36 mas/yr
|
|
gptkbp:rightAscension
|
02h 09m 32.6s
|
|
gptkbp:rotationPeriod
|
81 km/s
|
|
gptkbp:SIMBADID
|
alf+Tri
|
|
gptkbp:spectralType
|
F6IV
|
|
gptkbp:temperature
|
6,300 K
|
|
gptkbp:variableStar
|
none
|
|
gptkbp:visibleToNakedEye
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Triangulum
|
|
gptkbp:bfsLayer
|
6
|