|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
approximately 1.5 billion years
nan
|
|
gptkbp:apparent_magnitude
|
4.25
|
|
gptkbp:average_temperature
|
approximately 4,600 K
|
|
gptkbp:composed_of
|
yes
|
|
gptkbp:constellation
|
gptkb:Hydra
|
|
gptkbp:contains_star
|
no
|
|
gptkbp:country
|
no known planets
no known exoplanets
|
|
gptkbp:cultural_heritage
|
23 Hydrae
|
|
gptkbp:discovery_year
|
gptkb:unknown
|
|
gptkbp:distance
|
yes
approximately 130 light years
5.5 mag
|
|
gptkbp:exhibition
|
the Hipparcos catalog
ADS 6464
GC 11882
HR 3730
SAO 143198
TYC 6350-00700-1
|
|
gptkbp:has_astrometric_measurements
|
yes
|
|
gptkbp:has_bayer_designation
|
gptkb:Tau_Hydrae
|
|
gptkbp:has_color
|
+1.06
|
|
gptkbp:has_companion
|
no known companions
|
|
gptkbp:has_henry_draper_designation
|
gptkb:HD_81040
|
|
gptkbp:has_luminosity
|
about 50 times that of the Sun
about 400 times that of the Sun
|
|
gptkbp:has_mechanic
|
-0.020 mas/yr
-0.021 arcseconds/year
+0.005 arcseconds/year
|
|
gptkbp:has_parallax_measurements
|
yes
|
|
gptkbp:has_photometric_measurements
|
yes
|
|
gptkbp:has_proper_motion_measurements
|
yes
|
|
gptkbp:has_radial_velocity_measurements
|
yes
|
|
gptkbp:has_radius
|
approximately 10 solar radii
about 40 times that of the Sun
|
|
gptkbp:has_spectral_type
|
gptkb:K3_III
gptkb:K0_III
|
|
gptkbp:has_spectroscopic_measurements
|
yes
|
|
gptkbp:has_stellar_classification
|
yes
|
|
gptkbp:has_title
|
HIP 46056
|
|
gptkbp:has_variable_star_type
|
no
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Tau Hydrae
|
|
gptkbp:included
|
gptkb:Bright_Star_Catalog
2 MASS catalog
|
|
gptkbp:is_a_member_of
|
gptkb:Milky_Way_galaxy
|
|
gptkbp:is_a_source_of
|
stellar wind
|
|
gptkbp:is_a_subject_of
|
gptkb:exoplanet
stellar population synthesis
stellar classification studies
stellar dynamics research
|
|
gptkbp:is_approximately
|
130 light years away
|
|
gptkbp:is_associated_with
|
the Galactic Halo
|
|
gptkbp:is_located_in
|
the constellation Hydra
|
|
gptkbp:is_located_in_the_southern_celestial_hemisphere
|
nan
|
|
gptkbp:is_not_known_to_have_any_planets
|
nan
|
|
gptkbp:is_not_part_of_any_known_star_cluster
|
nan
|
|
gptkbp:is_not_variable
|
nan
|
|
gptkbp:is_observed_in
|
gptkb:the_Hubble_Space_Telescope
|
|
gptkbp:is_often_described_as
|
Tau Hya
|
|
gptkbp:is_part_of
|
gptkb:Hertzsprung–_Russell_diagram
gptkb:NASA_Exoplanet_Archive
gptkb:IC_2391_moving_group
gptkb:Milky_Way_Galaxy
Galactic disk
solar neighborhood
Simbad database
Bayer designation system
Tycho catalog
European Space Agency's Gaia mission
|
|
gptkbp:is_part_of_centaurus_supercluster
|
no
|
|
gptkbp:is_part_of_coma_supercluster
|
no
|
|
gptkbp:is_part_of_hercules_supercluster
|
no
|
|
gptkbp:is_part_of_laniakea_supercluster
|
no
|
|
gptkbp:is_part_of_local_group
|
no
|
|
gptkbp:is_part_of_milky_way_bulge
|
no
|
|
gptkbp:is_part_of_milky_way_disk
|
yes
|
|
gptkbp:is_part_of_milky_way_halo
|
no
|
|
gptkbp:is_part_of_orion_arm
|
yes
|
|
gptkbp:is_part_of_pavo-indus_supercluster
|
no
|
|
gptkbp:is_part_of_perseus-pisces_supercluster
|
no
|
|
gptkbp:is_part_of_supercluster
|
no
|
|
gptkbp:is_part_of_virgo_supercluster
|
no
|
|
gptkbp:is_used_in
|
astrophysical research
|
|
gptkbp:is_visible_from
|
yes
nan
|
|
gptkbp:known_as
|
gptkb:HD_81040
|
|
gptkbp:mass
|
about 2.5 solar masses
about 2.5 times that of the Sun
nan
|
|
gptkbp:metallicity
|
approximately solar metallicity
|
|
gptkbp:notable_nominees
|
stellar population studies
|
|
gptkbp:right_ascension
|
-0.020 mas/yr
|
|
gptkbp:scientific_classification
|
a red giant star
|
|
gptkbp:speed
|
about 2 km/s
|
|
gptkbp:system
|
no
nan
|
|
gptkbp:targets
|
stellar evolution studies
spectroscopic studies
|