Statements (66)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
gptkb:the_Sun
approximately 5 billion years |
| gptkbp:apparent_magnitude |
5.5
approximately 6.5 +5.2 |
| gptkbp:average_temperature |
approximately 5,200 K
approximately 5000 K |
| gptkbp:constellation |
gptkb:Draco
|
| gptkbp:contains_star |
none known
|
| gptkbp:country |
gptkb:81_Draconis_b
gptkb:true |
| gptkbp:discovered_by |
gptkb:2002
|
| gptkbp:discovery |
radial velocity
|
| gptkbp:discovery_year |
gptkb:2006
|
| gptkbp:distance |
approximately 46 light years
5.0 mag |
| gptkbp:eccentricity |
0.1
|
| gptkbp:has_a_focus_on |
astrophysical research
exoplanet habitability studies |
| gptkbp:has_luminosity |
0.4 solar luminosities
|
| gptkbp:has_mechanic |
0.5 arcseconds/year
|
| gptkbp:has_radius |
0.7 solar radii
0.75 solar radii |
| gptkbp:has_role |
stellar dynamics studies
|
| gptkbp:has_spectral_type |
K0 V
K3 V |
| gptkbp:hosts |
life
|
| https://www.w3.org/2000/01/rdf-schema#label |
81 Draconis
|
| gptkbp:included |
the 2 MASS catalog
|
| gptkbp:is_a_member_of |
the solar neighborhood
|
| gptkbp:is_a_reference_for |
stellar evolution models
stellar distance measurements |
| gptkbp:is_a_subject_of |
gptkb:exoplanet
stellar population studies |
| gptkbp:is_analyzed_in |
stellar activity
|
| gptkbp:is_approximately |
16.7 light years away from Earth
|
| gptkbp:is_associated_with |
the Draco constellation
|
| gptkbp:is_known_for |
its stable environment
|
| gptkbp:is_located_in |
the constellation Draco
|
| gptkbp:is_monitored_by |
stellar variability
|
| gptkbp:is_observed_in |
various telescopes
|
| gptkbp:is_part_of |
gptkb:the_Milky_Way_galaxy
the solar system's neighborhood the Hipparcos catalog the local stellar population the galactic structure the galactic neighborhood the Galactic disk the stellar census |
| gptkbp:is_studied_for |
exoplanetary systems
|
| gptkbp:is_visible_from |
with the naked eye
|
| gptkbp:mass |
0.8 solar masses
|
| gptkbp:metallicity |
-0.2 dex
|
| gptkbp:notable_nominees |
stellar evolution studies
planetary system formation studies |
| gptkbp:orbital_period |
approximately 4.5 days
|
| gptkbp:performance |
K-dwarf stars
|
| gptkbp:rotation_period |
approximately 30 days
|
| gptkbp:scientific_classification |
stellar classification
a K-type star |
| gptkbp:semi_major_axis |
0.05 AU
|
| gptkbp:targets |
gptkb:future_space_missions
future astronomical studies |
| gptkbp:type |
K-type main-sequence star
|
| gptkbp:type_of |
gptkb:main-sequence_star
|