Statements (50)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:apparent_magnitude |
5.56
|
| gptkbp:average_temperature |
approximately 4,800 K
|
| gptkbp:common_name |
also known as 91 Draconis A and B
|
| gptkbp:contains_star |
gptkb:91_Draconis_B
|
| gptkbp:discovered_by |
the 19th century
|
| gptkbp:distance |
about 5.5 magnitudes
|
| gptkbp:distance_from_earth |
approximately 100 light years
|
| gptkbp:has_a_distance_from_the_sun |
approximately 60 light years
|
| gptkbp:has_a_focus_on |
astrophysical research
|
| gptkbp:has_color |
1.45
|
| gptkbp:has_luminosity |
approximately 0.3 times that of the Sun
|
| gptkbp:has_mechanic |
0.25 arcseconds/year
|
| gptkbp:has_radius |
approximately 12 solar radii
|
| gptkbp:has_spectral_type |
gptkb:K3_III
|
| https://www.w3.org/2000/01/rdf-schema#label |
91 Draconis
|
| gptkbp:included |
the Yale Bright Star Catalog
|
| gptkbp:is_a |
gptkb:Giant
|
| gptkbp:is_a_member_of |
the solar neighborhood stars
|
| gptkbp:is_a_subject_of |
stellar evolution studies
stellar astrophysics stellar dynamics research |
| gptkbp:is_approximately |
60 light years away from Earth
|
| gptkbp:is_associated_with |
the Draco constellation mythology
|
| gptkbp:is_known_for |
its binary nature
|
| gptkbp:is_located_in |
the constellation Draco
constellation Draco |
| gptkbp:is_observed_in |
gptkb:the_Hubble_Space_Telescope
|
| gptkbp:is_part_of |
gptkb:the_Milky_Way_galaxy
gptkb:Milky_Way the Hipparcos catalog the catalog of nearby stars the local stellar population the solar neighborhood the Galactic disk the study of stellar populations. the Galactic structure |
| gptkbp:is_studied_in |
various astronomical surveys
|
| gptkbp:is_visible_from |
gptkb:true
|
| gptkbp:mass |
approximately 2.5 solar masses
approximately 1.5 solar masses |
| gptkbp:metallicity |
approximately -0.2 dex
|
| gptkbp:notable_nominees |
planetary system formation studies
|
| gptkbp:rotation_period |
about 30 days
|
| gptkbp:scientific_classification |
a binary star system with a wide separation
|
| gptkbp:system |
gptkb:true
a separation of about 100 AU has been studied for its formation history |
| gptkbp:targets |
spectroscopic studies
exoplanet searches |