Statements (61)
Predicate | Object |
---|---|
gptkbp:instance_of |
gptkb:star
|
gptkbp:bfsLayer |
3
|
gptkbp:bfsParent |
gptkb:star
|
gptkbp:are |
important for understanding the evolution of galaxies
important for measuring cosmic distances found in open clusters important for understanding stellar dynamics pulsating stars important for understanding the chemical evolution of galaxies important for understanding the lifecycle of stars important for understanding the dynamics of star formation important for understanding the fate of the universe important for understanding the expansion of the universe often used in the study of stellar populations in clusters often used in the study of the cosmic distance scale. a key to measuring the scale of the universe a type of pulsating variable star important for understanding the formation of stars important for understanding the nature of gravity often used in the study of the evolution of the universe often used in the study of the expansion rate of the universe often studied in the context of stellar populations important for understanding the history of the universe often brighter than other variable stars often found in the arms of spiral galaxies often studied in the context of galaxy formation often used in extragalactic astronomy often used in the study of dark energy often used in the study of galaxy clusters often used in the study of the Milky Way galaxy often used in the study of the cosmic web often used in the study of the interstellar medium used in the Tying of the Cosmic Distance Ladder used to calibrate other distance indicators used to estimate distances to nearby galaxies important for understanding the structure of the universe important for understanding the distribution of dark matter often used in the study of the large-scale structure of the universe often used in the study of cosmic microwave background radiation |
gptkbp:associated_with |
young stellar populations
|
gptkbp:can_be |
observed in infrared
|
gptkbp:discovered_by |
gptkb:Henrietta_Swan_Leavitt
|
gptkbp:exhibits |
pulsation
regular periodicity |
gptkbp:gestation_period |
1 to 100 days
|
gptkbp:has_luminosity |
100 to 10,000 times that of the Sun
|
gptkbp:have |
high mass
|
https://www.w3.org/2000/01/rdf-schema#label |
Cepheid Variables
|
gptkbp:influenced_by |
stellar evolution
|
gptkbp:is_characterized_by |
period-luminosity relationship
|
gptkbp:is_essential_for |
gptkb:spacecraft
|
gptkbp:is_found_in |
galaxies
|
gptkbp:is_observed_in |
gptkb:Hubble_Space_Telescope
|
gptkbp:is_recognized_by |
gptkb:the_Magellanic_Clouds
|
gptkbp:is_used_by |
Hubble constant
|
gptkbp:lighting |
up to 2.5 magnitudes
|
gptkbp:named_after |
gptkb:Cepheus_constellation
|
gptkbp:related_to |
supernovae
|
gptkbp:type |
Type II Cepheids
classical Cepheids |
gptkbp:used_in |
distance measurement
|