P Cygni

GPTKB entity

Statements (48)
Predicate Object
gptkbp:instance_of gptkb:star
gptkbp:age a few million years
gptkbp:apparent_magnitude approximately 3.5
gptkbp:archaeological_findings observed by astronomers for centuries
gptkbp:astrophysical_importance significant for understanding stellar evolution.
gptkbp:average_temperature around 12,000 K
gptkbp:brightness_fluctuation notable for brightness fluctuations
gptkbp:constellation gptkb:Cygnus
gptkbp:contains_star possible binary system
classified as a variable star
gptkbp:coordinates located in the Milky Way galaxy
gptkbp:cultural_references mentioned in various astronomical texts
gptkbp:discovery_year 1600s
gptkbp:distance approximately 5,000 light years
gptkbp:emissions_standard strong hydrogen and helium lines
gptkbp:explosion potential supernova candidate
gptkbp:first_described_by as a nova-like star
gptkbp:formulation gptkb:Luminous_Blue_Variable
gptkbp:has_luminosity approximately 100,000 times that of the Sun
evolved from a massive main-sequence star
influences dynamics in its surrounding region
gptkbp:has_spectral_type gptkb:B-type_supergiant
gptkbp:historical_significance one of the first stars to be classified as a nova
https://www.w3.org/2000/01/rdf-schema#label P Cygni
gptkbp:hubble_space_telescope_observation observed in various wavelengths
gptkbp:is_observed_in gptkb:Johannes_Kepler
gptkbp:lighting irregular variability
affected by light pollution in urban areas
analyzed for light curve patterns
exhibits irregular light curve variability
gptkbp:losses high mass loss rate due to stellar winds
gptkbp:mass approximately 20 times that of the Sun
part of the massive star population in Cygnus
gptkbp:mass_loss_mechanism driven by radiation pressure
gptkbp:notable_for its strong emission lines
gptkbp:research difficult to observe due to its brightness
extensively studied in the 20th century
important for scientific research in astrophysics
gptkbp:research_importance important for understanding massive star evolution
gptkbp:spectroscopic_studies extensively studied spectroscopically
gptkbp:stellar_nucleosynthesis contributes to nucleosynthesis in the galaxy
gptkbp:stellar_remnants potential remnant of a supernova explosion
gptkbp:stellar_wind_speed high stellar wind speed
gptkbp:storage subject of many photometric studies
gptkbp:type gptkb:Supernova
gptkbp:bfsParent gptkb:LBV
gptkb:Luminous_Blue_Variables
gptkbp:bfsLayer 7