open cluster population II

GPTKB entity

Statements (55)
Predicate Object
gptkbp:instance_of gptkb:open_cluster
gptkbp:age up to a few billion years
gptkbp:characteristic younger than globular clusters
gptkbp:cluster_formation_theory theories explain how clusters form and evolve
gptkbp:composed_by metal-rich stars
gptkbp:composed_of generally higher metallicity than Population I stars
gptkbp:contains_star clusters can experience tidal interactions with the galaxy
gptkbp:dissolved clusters can disperse over time
gptkbp:distribution found in the Milky Way and other galaxies
gptkbp:dynamics looser gravitational binding than globular clusters
gptkbp:example gptkb:Hyades
gptkb:Pleiades
gptkbp:formed formed from the same molecular cloud
gptkbp:galactic_context part of the broader study of galactic dynamics
gptkbp:galactic_halo not typically found in the galactic halo
gptkbp:has_luminosity age can be estimated through isochrone fitting
stars evolve together in clusters
stars can interact gravitationally within the cluster
gptkbp:historical_significance first identified in the 18th century
https://www.w3.org/2000/01/rdf-schema#label open cluster population II
gptkbp:importance studying stellar evolution
understanding galactic structure
gptkbp:is_a_tool_for Hubble Space Telescope used for observations
ground-based telescopes used for observations
gptkbp:is_compared_to compared to globular clusters in terms of age and composition
gptkbp:lifespan can last several hundred million years
gptkbp:location galaxy disk
gptkbp:model models help predict cluster evolution
gptkbp:notable_city gptkb:NGC_188
gptkb:NGC_752
gptkb:M67
gptkb:NGC_2244
gptkb:NGC_6819
gptkbp:observational_astronomy key area of research in observational astronomy
gptkbp:relation_to associated with star formation regions
gptkbp:research gptkb:spectroscopy
photometry
difficult to observe due to distance and brightness
gptkbp:research_importance help in calibrating distance scales
provide insights into the chemical evolution of galaxies
gptkbp:size typically contain a few dozen to a few thousand stars
gptkbp:stellar_birth formed from the same molecular cloud as other stars
gptkbp:stellar_evolution_tracks used to study the life cycles of stars in clusters
gptkbp:stellar_formation_history provide clues to the history of star formation in the galaxy
gptkbp:stellar_mass_range includes a range of stellar masses
gptkbp:stellar_motion stars have similar velocities within the cluster
gptkbp:stellar_population_classification part of the classification of star clusters
gptkbp:stellar_population_dynamics dynamics influenced by nearby stars
gptkbp:stellar_population_studies important for understanding the Milky Way's history
gptkbp:stellar_population_synthesis used to model the light from clusters.
gptkbp:stellar_remnants can contain white dwarfs and neutron stars
gptkbp:stellar_types includes O, B, A, F, G, K stars
gptkbp:type gptkb:star
gptkbp:bfsParent gptkb:NGC_2158
gptkbp:bfsLayer 5