Statements (76)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
gptkb:the_Sun
nan |
| gptkbp:apparent_magnitude |
3.5
3.44 |
| gptkbp:average_temperature |
approximately 4,500 K
|
| gptkbp:contains_star |
none known
|
| gptkbp:distance |
approximately 100 light years
|
| gptkbp:exhibition |
gptkb:Hipparcos
|
| gptkbp:has_bayer_designation |
gptkb:Delta
|
| gptkbp:has_color |
1.5
1.45 |
| gptkbp:has_luminosity |
approximately 100 times that of the Sun
approximately 70 times that of the Sun about 500 times that of the Sun |
| gptkbp:has_mechanic |
-0.01 arcseconds/year
-0.020 mas/yr -0.021 mas/yr -0.02 arcseconds/year |
| gptkbp:has_radius |
approximately 12 times that of the Sun
about 50 times that of the Sun |
| gptkbp:has_spectral_type |
gptkb:K3_III
K-type stars |
| gptkbp:has_title |
gptkb:Delta_Hydrae
|
| https://www.w3.org/2000/01/rdf-schema#label |
Delta Hydrae
|
| gptkbp:included |
star charts
star catalogs |
| gptkbp:is_a |
gptkb:Giant
|
| gptkbp:is_a_member_of |
gptkb:Hertzsprung–_Russell_diagram
|
| gptkbp:is_approximately |
100 light years away
|
| gptkbp:is_associated_with |
stellar evolution studies
|
| gptkbp:is_in |
the solar neighborhood
|
| gptkbp:is_known_for |
its historical significance
its color |
| gptkbp:is_known_to |
have a stable brightness
|
| gptkbp:is_located_in |
constellation Hydra
|
| gptkbp:is_located_in_the_southern_celestial_hemisphere |
nan
|
| gptkbp:is_not_part_of_any_known_star_system |
nan
|
| gptkbp:is_noted_for |
its brightness
its stability its position in the sky its orange hue |
| gptkbp:is_observed_in |
telescopes
professional astronomers amateur astronomy |
| gptkbp:is_part_of |
gptkb:Hertzsprung–_Russell_diagram
gptkb:Milky_Way gptkb:Milky_Way_galaxy the celestial sphere the night sky the HR diagram the celestial navigation system the celestial coordinate system the astronomical community the Hydra constellation |
| gptkbp:is_recognized_by |
Bayer designation
|
| gptkbp:is_referenced_in |
astronomical literature
|
| gptkbp:is_studied_for |
stellar atmospheres
its spectral characteristics |
| gptkbp:is_studied_in |
astrophysics
|
| gptkbp:is_used_in |
stellar classification
star identification navigation by astronomers |
| gptkbp:is_visible_from |
gptkb:true
yes northern hemisphere clear nights nan |
| gptkbp:known_as |
gptkb:Delta_Hya
gptkb:GJ_1001 |
| gptkbp:mass |
about 3 times that of the Sun
nan |
| gptkbp:measures |
photometry
|
| gptkbp:origin |
gptkb:Greek_mythology
|
| gptkbp:scientific_classification |
gptkb:star
a red giant star |