Statements (50)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:age |
approximately 10 million years
|
| gptkbp:apparent_magnitude |
3.2
|
| gptkbp:astrometric_data |
available in star catalogs
|
| gptkbp:average_temperature |
approximately 20,000 K
|
| gptkbp:composed_of |
helium-rich
|
| gptkbp:constellation |
gptkb:Cepheus
|
| gptkbp:contains_star |
gptkb:Supernova
none known other Beta Cephei variables |
| gptkbp:coordinates |
90°
+30° (X, Y, Z) in parsecs |
| gptkbp:cultural_references |
mentioned in various mythologies
|
| gptkbp:declination |
+58° 47' 18''
|
| gptkbp:discovery |
gptkb:William_Herschel
|
| gptkbp:discovery_year |
1783
|
| gptkbp:distance |
approximately 700 light years
|
| gptkbp:future_evolution |
will become a red giant
|
| gptkbp:has_field |
weak magnetic field
|
| gptkbp:has_luminosity |
approximately 2000 times that of the Sun
|
| gptkbp:has_mechanic |
-0.12 mas/yr
+0.12 mas/yr |
| gptkbp:has_spectral_type |
B2 IV
|
| gptkbp:has_variations |
gptkb:Beta_Cephei_variable
|
| gptkbp:historical_significance |
used for navigation
|
| https://www.w3.org/2000/01/rdf-schema#label |
Beta Cephei
|
| gptkbp:is_observed_in |
many amateur astronomers
|
| gptkbp:is_visible_from |
visible to the naked eye
|
| gptkbp:light_pollution_impact |
affected by light pollution in urban areas
|
| gptkbp:lighting |
one of the brightest stars in its constellation
0.1 magnitudes has a characteristic light curve pattern |
| gptkbp:losses |
significant mass loss
|
| gptkbp:mass |
approximately 10 times that of the Sun
|
| gptkbp:max_speed |
strong stellar wind
|
| gptkbp:name |
gptkb:Alderamin
|
| gptkbp:originated_in |
post-main sequence
|
| gptkbp:parallax |
4.67 mas
|
| gptkbp:research |
none significant
subject of numerous scientific studies has been observed for centuries |
| gptkbp:right_ascension |
21h 28m 24.5s
|
| gptkbp:rotation_period |
approximately 0.5 days
|
| gptkbp:spectroscopic_data |
available in various studies
|
| gptkbp:storage |
available in various catalogs
|
| gptkbp:type |
gptkb:star
|
| gptkbp:bfsParent |
gptkb:Cepheus_constellation
gptkb:Cepheus |
| gptkbp:bfsLayer |
5
|