Statements (85)
Predicate | Object |
---|---|
gptkbp:instance_of |
gptkb:star
|
gptkbp:age |
estimated to be around 100 million years
|
gptkbp:apparent_magnitude |
-8.0
2.24 -8.25 |
gptkbp:average_temperature |
around 4,500 K
|
gptkbp:color |
gptkb:red
|
gptkbp:constellation |
gptkb:Cassiopeia
|
gptkbp:discovered_by |
ancient times
|
gptkbp:discovery |
known since antiquity
|
gptkbp:distance |
approximately 230 light years
|
gptkbp:exhibition |
the Hipparcos catalog
the GCVS |
gptkbp:has_color |
gptkb:red
+1.50 |
gptkbp:has_luminosity |
approximately 1,500 times that of the Sun
about 3,000 times that of the Sun about 1,500 times the luminosity of the Sun |
gptkbp:has_mechanic |
-0.01 arcseconds/year
-0.02 arcseconds/year -0.02 arcseconds/year in declination 0.01 arcseconds/year in right ascension |
gptkbp:has_radius |
approximately 40 times that of the Sun
approximately 50 times that of the Sun approximately 60 times the radius of the Sun |
gptkbp:has_spectral_type |
M0 III
|
https://www.w3.org/2000/01/rdf-schema#label |
Schedar
|
gptkbp:included |
the Messier catalog
the Bright Star Catalog |
gptkbp:is_a |
gptkb:Supernova
gptkb:Giant gptkb:star |
gptkbp:is_associated_with |
the myth of Andromeda
the mythological figure of Cassiopeia |
gptkbp:is_in |
the northern celestial hemisphere
|
gptkbp:is_known_for |
its historical significance in astronomy
its brightness and color its role in folklore and mythology |
gptkbp:is_located_at |
approximately 230 light-years from Earth
|
gptkbp:is_located_in |
constellation Cassiopeia
|
gptkbp:is_located_near |
230 light years from Earth
|
gptkbp:is_observed_in |
amateur astronomers
various wavelengths of light various astronomical studies |
gptkbp:is_one_of |
the brightest stars in Cassiopeia
|
gptkbp:is_part_of |
gptkb:Milky_Way
gptkb:Milky_Way_galaxy Cassiopeia constellation the celestial sphere the HR diagram the spectral classification system the celestial navigation system the celestial coordinate system the astronomical community the HR catalog the star classification system the Bayer designation system the astronomical literature the star cataloging systems |
gptkbp:is_related_to |
the constellation's shape
|
gptkbp:is_studied_for |
stellar evolution
its physical properties |
gptkbp:is_studied_in |
astrophysicists
|
gptkbp:is_used_in |
star charts
stellar navigation navigational astronomy |
gptkbp:is_visible_from |
gptkb:Earth
gptkb:true visible to the naked eye the northern hemisphere the autumn sky the night sky. |
gptkbp:location |
northern hemisphere
|
gptkbp:mass |
about 5 times the mass of the Sun
|
gptkbp:name |
gptkb:Alpha_Cassiopeiae
|
gptkbp:named_after |
Arabic word for 'the chair'
Arabic word for 'the head of the snake' the Arabic word for 'the breast'. the Arabic word for 'the head of the serpent' |
gptkbp:previous_name |
gptkb:Shedar
|
gptkbp:scientific_classification |
a giant star
|
gptkbp:type |
red giant
|
gptkbp:type_of |
spectral type M0 III
|
gptkbp:bfsParent |
gptkb:Cassiopeia
|
gptkbp:bfsLayer |
5
|