|
gptkbp:instance_of
|
gptkb:Nebula_Award
|
|
gptkbp:apparent_magnitude
|
8.8
|
|
gptkbp:contains
|
central star
|
|
gptkbp:diameter
|
about 1.44 light years
|
|
gptkbp:discovered_by
|
gptkb:Antonie_P._de_Grijs
|
|
gptkbp:discovery_year
|
1779
|
|
gptkbp:distance_from_earth
|
approximately 2,000 light years
|
|
gptkbp:emissions_standard
|
hydrogen and oxygen
|
|
gptkbp:has_color
|
greenish hue
|
|
gptkbp:has_function
|
ring-like structure
|
|
gptkbp:has_spectral_type
|
O-type star
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
NGC 6720
|
|
gptkbp:ingredients
|
ionized gas
|
|
gptkbp:is_analyzed_in
|
chemical composition
stellar populations
light curves
|
|
gptkbp:is_associated_with
|
planetary nebulae
|
|
gptkbp:is_described_as
|
astronomical literature
|
|
gptkbp:is_examined_in
|
gptkb:spectroscopy
stellar dynamics
|
|
gptkbp:is_explored_in
|
space telescopes
|
|
gptkbp:is_featured_in
|
astronomy documentaries
|
|
gptkbp:is_known_for
|
its historical significance
its unique features
its bright central star
its beauty in images
|
|
gptkbp:is_located_at
|
Declination +33° 01' 42''
Right Ascension 18h 53m 35.1s
|
|
gptkbp:is_located_in
|
constellation Lyra
|
|
gptkbp:is_noted_for
|
its intricate details
its symmetry
|
|
gptkbp:is_observed_in
|
amateur astronomers
professional astronomers
public outreach events
various wavelengths
astronomical events
photographic techniques
|
|
gptkbp:is_part_of
|
gptkb:Hubble_Heritage_Project
gptkb:interstellar_medium
gptkb:Messier_57
gptkb:Milky_Way_galaxy
cosmic phenomena
NGC catalog
cosmic structures
astronomical catalogs
nebular studies
|
|
gptkbp:is_referenced_in
|
gptkb:academic_journals
gptkb:textbooks
|
|
gptkbp:is_studied_for
|
stellar evolution
stellar winds
its morphology
its expansion rate
|
|
gptkbp:is_studied_in
|
astrophysics
stellar astrophysics
|
|
gptkbp:is_used_in
|
educational astronomy
|
|
gptkbp:is_visible_from
|
gptkb:Earth
small telescopes
|
|
gptkbp:known_as
|
gptkb:Ring_Nebula
|
|
gptkbp:map
|
astronomical surveys
|
|
gptkbp:photography
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:scientific_classification
|
type II planetary nebula
|
|
gptkbp:type
|
gptkb:Nebula_Award
|
|
gptkbp:bfsParent
|
gptkb:the_Ring_Nebula
gptkb:The_Ring_Nebula
|
|
gptkbp:bfsLayer
|
5
|