|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
1-2 billion years
|
|
gptkbp:apparent_magnitude
|
7.65
+7.65
|
|
gptkbp:average_temperature
|
approximately 6000 K
about 6000 K
6070 K
|
|
gptkbp:constellation
|
gptkb:Pegasus
|
|
gptkbp:country
|
gptkb:HD_209458_b
gptkb:HD_209458_c
|
|
gptkbp:declination
|
+18° 53' 02''
|
|
gptkbp:discovered_by
|
gptkb:1999
|
|
gptkbp:discovery_year
|
gptkb:1999
|
|
gptkbp:distance
|
159 light years
|
|
gptkbp:has_luminosity
|
1.5 solar luminosities
1.5 times the luminosity of the Sun
|
|
gptkbp:has_mechanic
|
-0.045 arcsec/yr
+0.020 arcsec/yr
|
|
gptkbp:has_radius
|
1.2 solar radii
1.1 times the radius of the Sun
|
|
gptkbp:has_spectral_type
|
gptkb:G
G0 V
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HD 209458
|
|
gptkbp:is_a
|
gptkb:main-sequence_star
|
|
gptkbp:is_approximately
|
150 light years away from Earth
159 light years away from Earth
|
|
gptkbp:is_known_for
|
transiting exoplanet HD 209458 b
|
|
gptkbp:is_located_in
|
constellation Pegasus
|
|
gptkbp:is_part_of
|
gptkb:Milky_Way
gptkb:Milky_Way_galaxy
|
|
gptkbp:is_visible_from
|
gptkb:Earth
gptkb:true
|
|
gptkbp:mass
|
1.1 solar masses
1.1 times the mass of the Sun
|
|
gptkbp:metallicity
|
[ Fe/ H] = 0.0
|
|
gptkbp:orbital_period
|
3.52 days
|
|
gptkbp:parallax
|
20.5 mas
|
|
gptkbp:right_ascension
|
22h 03m 10.7s
|
|
gptkbp:type
|
gptkb:main-sequence_star
|