|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
gptkb:the_Sun
approximately 5 billion years
|
|
gptkbp:apparent_magnitude
|
5.5
+4.7
|
|
gptkbp:average_temperature
|
approximately 5,200 K
approximately 5,800 K
|
|
gptkbp:constellation
|
gptkb:Ursa_Major
|
|
gptkbp:contains_star
|
none known
|
|
gptkbp:coordinates
|
+50 degrees
+150 degrees
|
|
gptkbp:country
|
gptkb:91_Ursae_Majoris_b
has at least one confirmed exoplanet
|
|
gptkbp:declination
|
+54° 24' 12''
|
|
gptkbp:discovered_by
|
gptkb:2000
|
|
gptkbp:discovery
|
radial velocity
|
|
gptkbp:discovery_year
|
gptkb:2001
|
|
gptkbp:distance
|
5.5
approximately 80 light years
|
|
gptkbp:eccentricity
|
0.1
|
|
gptkbp:exoplanet_name
|
gptkb:91_Ursae_Majoris_b
|
|
gptkbp:has_a_distance_from_the_galactic_center
|
approximately 8,500 parsecs
|
|
gptkbp:has_a_known_age
|
approximately 6 billion years
|
|
gptkbp:has_a_known_chemical_composition
|
similar to the Sun
|
|
gptkbp:has_a_known_magnetic_field
|
weak
|
|
gptkbp:has_a_known_rotation_speed
|
2 km/s
|
|
gptkbp:has_a_rotation_axis
|
tilted relative to the galactic plane
|
|
gptkbp:has_color
|
0.6
|
|
gptkbp:has_luminosity
|
1.5 solar luminosities
about 0.4 solar luminosities
|
|
gptkbp:has_mechanic
|
0.1 arcseconds/year
|
|
gptkbp:has_radius
|
1.2 solar radii
about 0.7 solar radii
|
|
gptkbp:has_spectral_type
|
G5 V
K3 V
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
91 Ursae Majoris
|
|
gptkbp:is_a_member_of
|
the Galactic disk
|
|
gptkbp:is_a_source_of
|
stellar wind
|
|
gptkbp:is_a_subject_of
|
astrophysical studies
|
|
gptkbp:is_approximately
|
81 light years away
|
|
gptkbp:is_associated_with
|
the Ursa Major moving group
|
|
gptkbp:is_located_in
|
Ursa Major constellation
|
|
gptkbp:is_part_of
|
gptkb:the_Milky_Way_galaxy
the Local Bubble
the solar system's neighborhood
the Orion Arm of the Milky Way
the solar neighborhood
the Milky Way's stellar population.
|
|
gptkbp:is_studied_for
|
stellar evolution
|
|
gptkbp:is_visible_from
|
from Earth
|
|
gptkbp:mass
|
1.1 solar masses
about 0.8 solar masses
|
|
gptkbp:metallicity
|
[ Fe/ H] = -0.2
0.2 solar metallicity
|
|
gptkbp:notable_nominees
|
habitable zone studies
|
|
gptkbp:orbit_type
|
gptkb:91_Ursae_Majoris_c
|
|
gptkbp:orbital_period
|
approximately 4.2 days
|
|
gptkbp:parallax
|
0.04 arcseconds
|
|
gptkbp:right_ascension
|
13h 57m 43.0s
|
|
gptkbp:rotation_period
|
approximately 26 days
|
|
gptkbp:scientific_classification
|
a main-sequence star
|
|
gptkbp:targets
|
gptkb:exoplanet
gptkb:future_space_missions
|
|
gptkbp:type
|
K-type main-sequence star
|