Statements (77)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
approximately 1 billion years
|
| gptkbp:apparent_magnitude |
4.5
5.5 5.25 |
| gptkbp:average_temperature |
approximately 8,000 K
about 8000 K |
| gptkbp:contains_star |
gptkb:Zeta_Lyrae_A
gptkb:Zeta_Lyrae_B gptkb:true |
| gptkbp:discovered_by |
unknown astronomer
|
| gptkbp:distance |
approximately 50 light years
approximately 50 light years from Earth |
| gptkbp:distance_from_earth |
approximately 50 light years
|
| gptkbp:exhibition |
Hipparcos catalog
|
| gptkbp:has |
a period of about 1.5 days
|
| gptkbp:has_bayer_designation |
gptkb:Zeta_Lyrae
|
| gptkbp:has_color |
0.1
0.2 0.25 |
| gptkbp:has_luminosity |
approximately 20 times that of the Sun
about 30 times that of the Sun |
| gptkbp:has_mechanic |
0.1 arcseconds/year
-0.12 arcseconds/year -0.15 arcseconds/year |
| gptkbp:has_radius |
approximately 2.5 times that of the Sun
approximately 2.5 solar radii |
| gptkbp:has_spectral_type |
gptkb:A5_V
|
| gptkbp:has_title |
gptkb:Zeta_Lyrae
|
| gptkbp:has_type |
gptkb:star
|
| https://www.w3.org/2000/01/rdf-schema#label |
Zeta Lyrae
|
| gptkbp:included |
star catalogs
|
| gptkbp:is |
a binary star system
|
| gptkbp:is_analyzed_in |
stellar dynamics
|
| gptkbp:is_associated_with |
various astronomical phenomena
|
| gptkbp:is_considered_as |
a target for exoplanet searches
|
| gptkbp:is_involved_in |
stellar evolution
|
| gptkbp:is_known_for |
its binary nature
|
| gptkbp:is_located_at |
Declination +30° 06′ 12″
Right Ascension 18h 36m 56.7s |
| gptkbp:is_located_in |
gptkb:Milky_Way_galaxy
constellation Lyra |
| gptkbp:is_monitored_by |
professional observatories
|
| gptkbp:is_observed_in |
amateur astronomers
spectroscopic analysis |
| gptkbp:is_part_of |
gptkb:Hercules_constellation
gptkb:Lyra gptkb:Lyra_constellation gptkb:Milky_Way_galaxy astrophysical research stellar associations stellar surveys Zeta Lyrae binary system Zeta Lyrae system |
| gptkbp:is_related_to |
other binary star systems
|
| gptkbp:is_studied_in |
astrophysics
|
| gptkbp:is_used_in |
stellar evolution studies
stellar classification studies |
| gptkbp:is_visible_from |
gptkb:Earth
gptkb:true yes northern hemisphere |
| gptkbp:lighting |
magnitude 4.5
|
| gptkbp:located_in |
gptkb:Lyra_constellation
|
| gptkbp:mass |
about 2.5 solar masses
approximately 2.5 times that of the Sun |
| gptkbp:named_after |
the Lyra constellation
the lyre (a musical instrument) |
| gptkbp:orbital_period |
approximately 1.5 years
|
| gptkbp:specification |
gptkb:HD_179249
|
| gptkbp:system |
gptkb:true
no |
| gptkbp:type_of |
gptkb:main-sequence_star
gptkb:star spectral type A |
| gptkbp:bfsParent |
gptkb:Lyra
|
| gptkbp:bfsLayer |
5
|