|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
around 300 million years
|
|
gptkbp:apparent_magnitude
|
4.3
|
|
gptkbp:average_temperature
|
around 10,000 K
|
|
gptkbp:contains_star
|
gptkb:d_Canum_Venaticorum_B
|
|
gptkbp:discovered_by
|
gptkb:unknown
|
|
gptkbp:distance
|
approximately 50 light years
|
|
gptkbp:exhibition
|
Hipparcos catalog
|
|
gptkbp:has_color
|
gptkb:white
0.1
|
|
gptkbp:has_luminosity
|
approximately 20 times that of the Sun
|
|
gptkbp:has_mechanic
|
-0.12 arcseconds/year
+0.15 arcseconds/year
|
|
gptkbp:has_radius
|
approximately 2.5 solar radii
|
|
gptkbp:has_spectral_type
|
gptkb:A0_V
|
|
gptkbp:has_title
|
also known as Chara
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
d Canum Venaticorum
|
|
gptkbp:included
|
star catalogs
star formation studies
|
|
gptkbp:is_analyzed_in
|
stellar dynamics
|
|
gptkbp:is_associated_with
|
the constellation mythology
the Ursa Major group
|
|
gptkbp:is_known_for
|
its brightness
|
|
gptkbp:is_known_to
|
variable brightness
|
|
gptkbp:is_located_at
|
Declination +50° 30′ 32″
Right Ascension 13h 25m 11.5s
|
|
gptkbp:is_located_in
|
the celestial sphere
|
|
gptkbp:is_noted_for
|
its binary nature
|
|
gptkbp:is_observed_in
|
professional astronomers
stellar parallax
amateur astronomy
|
|
gptkbp:is_part_of
|
gptkb:Canes_Venatici
gptkb:Milky_Way_Galaxy
gptkb:the_Local_Group
multiple star system
constellation Canes Venatici
the celestial navigation system
the astronomical community
|
|
gptkbp:is_referenced_in
|
astronomical literature
|
|
gptkbp:is_related_to
|
stellar evolution
|
|
gptkbp:is_studied_for
|
its spectral characteristics
|
|
gptkbp:is_studied_in
|
astrophysics
|
|
gptkbp:is_used_in
|
stellar classification
|
|
gptkbp:is_utilized_in
|
stellar distance measurement
|
|
gptkbp:is_visible_from
|
gptkb:Northern_Hemisphere
gptkb:true
|
|
gptkbp:mass
|
about 2.5 solar masses
|
|
gptkbp:measures
|
astrometric methods
|
|
gptkbp:named_after
|
the hunting dogs
|
|
gptkbp:orbital_period
|
varies with companion
|
|
gptkbp:scientific_classification
|
a binary star system
|
|
gptkbp:system
|
gptkb:true
|
|
gptkbp:type_of
|
gptkb:main-sequence_star
|