HD 187642

URI: https://gptkb.org/entity/HD_187642

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:star
gptkbp:age	1.2 billion years
gptkbp:alternativeName	gptkb:Altair
gptkbp:apparentMagnitude	0.77
gptkbp:BayerDesignation	gptkb:Alpha_Aquilae
gptkbp:catalogue	gptkb:Henry_Draper_Catalogue
gptkbp:constellation	gptkb:Aquila
gptkbp:declination	+08° 52′ 06″
gptkbp:diameter	1.63 solar radii
gptkbp:discoveredBy	ancient astronomers
gptkbp:distanceFromEarth	16.7 light years
gptkbp:FlamsteedDesignation	gptkb:53_Aquilae
gptkbp:hasExoplanet	no
gptkbp:luminosity	10.6 times solar
gptkbp:mass	1.79 solar masses
gptkbp:metallicity	−0.2 [Fe/H]
gptkbp:notableFor	one of the closest bright stars to Earth
gptkbp:parallax	194.95 mas
gptkbp:partOf	gptkb:Summer_Triangle
gptkbp:rightAscension	19h 50m 47s
gptkbp:rotationPeriod	286 km/s
gptkbp:spectralType	gptkb:A7V
gptkbp:temperature	7550 K
gptkbp:variableType	gptkb:Delta_Scuti_variable
gptkbp:visibleToNakedEye	yes
gptkbp:bfsParent	gptkb:Altair gptkb:Altair_(star)
gptkbp:bfsLayer	6
https://www.w3.org/2000/01/rdf-schema#label	HD 187642