|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
nan
|
|
gptkbp:apparent_magnitude
|
5.25
|
|
gptkbp:average_temperature
|
around 4,800 K
|
|
gptkbp:conducts_research_on
|
stellar dynamics
binary star evolution
|
|
gptkbp:contains
|
multiple stars
|
|
gptkbp:country
|
nan
|
|
gptkbp:distance
|
5.5
|
|
gptkbp:exhibition
|
various star catalogs
|
|
gptkbp:has_a_brightness
|
magnitude 5.5
|
|
gptkbp:has_a_primary_component
|
gptkb:99_Lyrae_A
|
|
gptkbp:has_a_radial_velocity
|
-10 km/s
|
|
gptkbp:has_a_secondary_component
|
gptkb:99_Lyrae_B
|
|
gptkbp:has_bayer_designation
|
gptkb:Lyra
|
|
gptkbp:has_luminosity
|
about 60 times that of the Sun
|
|
gptkbp:has_mechanic
|
0.15 arcseconds/year
-0.020 arcseconds/year in declination
0.045 arcseconds/year in right ascension
|
|
gptkbp:has_radius
|
about 12 times that of the Sun
|
|
gptkbp:has_spectral_type
|
gptkb:A
gptkb:K0_III
K-type stars
|
|
gptkbp:has_title
|
nan
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
99 Lyrae
|
|
gptkbp:included
|
the Yale Bright Star Catalog
|
|
gptkbp:is_a_binary_system_with_a_period_of
|
approximately 100 years
|
|
gptkbp:is_a_member_of
|
the solar neighborhood
|
|
gptkbp:is_a_point_of_interest_for
|
amateur astronomers
|
|
gptkbp:is_a_reference_for
|
celestial navigation
|
|
gptkbp:is_a_source_of
|
stellar wind
|
|
gptkbp:is_a_subject_of
|
stellar evolution studies
|
|
gptkbp:is_analyzed_in
|
stellar activity
|
|
gptkbp:is_approximately
|
50 light years away from Earth
100 light years away
|
|
gptkbp:is_classified_as_a_single_star
|
nan
|
|
gptkbp:is_located_in
|
constellation Lyra
the constellation Lyra
|
|
gptkbp:is_located_in_the_northern_celestial_hemisphere
|
nan
|
|
gptkbp:is_observed_in
|
various wavelengths
|
|
gptkbp:is_part_of
|
gptkb:the_Milky_Way_galaxy
|
|
gptkbp:is_part_of_the_galactic_disk
|
nan
|
|
gptkbp:is_studied_in
|
gptkb:astronomy
astrophysics
|
|
gptkbp:is_visible_from
|
nan
|
|
gptkbp:known_as
|
gptkb:HR_6883
|
|
gptkbp:mass
|
about 2.5 times that of the Sun
nan
|
|
gptkbp:metallicity
|
solar metallicity
|
|
gptkbp:notable_examples
|
binary star systems.
|
|
gptkbp:notable_galaxies
|
nan
|
|
gptkbp:notable_nominees
|
planetary system formation
|
|
gptkbp:provided
|
astronomical surveys
|
|
gptkbp:scientific_classification
|
a double star system
|
|
gptkbp:system
|
nan
|
|
gptkbp:targets
|
exoplanet searches
|