Statements (81)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
approximately 1 billion years
approximately 10 million years |
| gptkbp:apparent_magnitude |
3.36
approximately 3.5 approximately 0.5 |
| gptkbp:average_temperature |
approximately 4,800 K
approximately 20,000 K |
| gptkbp:color |
gptkb:orange
|
| gptkbp:constellation |
gptkb:Lupus
|
| gptkbp:contains_star |
gptkb:Giant
|
| gptkbp:coordinates |
-4.5 degrees
240.1 degrees |
| gptkbp:cultural_heritage |
22 Lupi
|
| gptkbp:cultural_references |
mentioned in various star catalogs
|
| gptkbp:discovery |
known since antiquity
|
| gptkbp:distance |
approximately 50 light years
approximately 27 parsecs |
| gptkbp:distance_from_earth |
15 parsecs
|
| gptkbp:formulation |
gptkb:none
|
| gptkbp:galactic_latitude |
-1.2 degrees
|
| gptkbp:galactic_longitude |
339.5 degrees
|
| gptkbp:has_bayer_designation |
gptkb:Epsilon_Lupi
ε Lupi |
| gptkbp:has_color |
-0.25
|
| gptkbp:has_companion |
none known
|
| gptkbp:has_henry_draper_designation |
HD 139139
|
| gptkbp:has_luminosity |
approximately 1,500 times that of the Sun
approximately 3.5 times that of the Sun |
| gptkbp:has_mechanic |
-0.12 arcseconds/year
-0.15 arcseconds/year |
| gptkbp:has_radius |
approximately 3.5 solar radii
about 1.5 solar radii |
| gptkbp:has_spectral_type |
B2 V
|
| gptkbp:hipparcos_catalog_number |
HIP 76412
|
| gptkbp:historical_significance |
used in navigation
|
| https://www.w3.org/2000/01/rdf-schema#label |
Epsilon Lupi
|
| gptkbp:is_a |
gptkb:main-sequence_star
gptkb:astronomy gptkb:Giant gptkb:star hot star blue giant star spectroscopic binary star system luminous blue variable star hot blue star spectral class B star stellar binary |
| gptkbp:is_associated_with |
the Lupus constellation
|
| gptkbp:is_in |
the southern celestial hemisphere
|
| gptkbp:is_known_for |
its brightness in the night sky
|
| gptkbp:is_located_near |
90 light years from Earth
|
| gptkbp:is_observed_in |
optical wavelengths
|
| gptkbp:is_part_of |
gptkb:the_Milky_Way_galaxy
the local stellar neighborhood constellation Lupus the Scorpius-Centaurus association the Scorpius-Centaurus star-forming region |
| gptkbp:is_studied_in |
astrophysics
|
| gptkbp:is_visible_from |
visible to the naked eye
with the naked eye the southern sky |
| gptkbp:lighting |
none known
not detected one of the brighter stars in its constellation |
| gptkbp:location_in_sky |
southern hemisphere
|
| gptkbp:mass |
approximately 6.5 solar masses
about 1.2 solar masses |
| gptkbp:metallicity |
approximately solar metallicity
slightly higher than solar |
| gptkbp:orbital_period |
approximately 5.5 days
|
| gptkbp:parallax |
0.065 arcseconds
|
| gptkbp:proper_motion_in_dec |
-0.020 arcseconds/year
|
| gptkbp:proper_motion_in_ra |
-0.045 arcseconds/year
|
| gptkbp:rotation_period |
about 25 days
|
| gptkbp:specification |
HR 5460
|
| gptkbp:spectral_classification |
K1 III
|
| gptkbp:speed |
moderate
|
| gptkbp:type |
spectral type K
|
| gptkbp:bfsParent |
gptkb:Lupus_constellation
|
| gptkbp:bfsLayer |
6
|