Statements (75)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:open_cluster
gptkb:Nebula_Award gptkb:star |
| gptkbp:age |
around 8,000 years
approximately 6,000 years |
| gptkbp:apparent_magnitude |
8.8
9.0 |
| gptkbp:contains |
central star
ionized gas |
| gptkbp:coordinates |
18h 53m 35.5s, +33° 01′ 43″
18h 53m 35s, +33° 01′ 50″ |
| gptkbp:diameter |
about 1 light year
|
| gptkbp:discovered_by |
gptkb:William_Herschel
Antonie P. de Grassi |
| gptkbp:discovery_year |
1779
|
| gptkbp:distance_from_earth |
approximately 2,300 light years
approximately 2,300 light-years around 2,300 light years |
| gptkbp:first_appearance |
1779
|
| gptkbp:has_spectral_type |
O and B stars
|
| gptkbp:has_type |
gptkb:Nebula_Award
|
| https://www.w3.org/2000/01/rdf-schema#label |
M57
|
| gptkbp:included |
star catalogs
|
| gptkbp:ingredients |
various elements like hydrogen and helium
|
| gptkbp:is_analyzed_in |
its expansion rate
its light spectrum |
| gptkbp:is_associated_with |
stellar evolution studies
the study of nebulae |
| gptkbp:is_characterized_by |
a bright central star
|
| gptkbp:is_considered |
a target for future space missions
a significant astronomical object a classic example of a planetary nebula a benchmark for planetary nebula research |
| gptkbp:is_described_as |
astronomical catalogs
|
| gptkbp:is_examined_in |
stellar dynamics research
|
| gptkbp:is_featured_in |
astronomy education materials
|
| gptkbp:is_known_for |
its unique structure
|
| gptkbp:is_located_at |
Galactic coordinates (l, b): 60.0°, +25.0°
|
| gptkbp:is_located_in |
the constellation Lyra
|
| gptkbp:is_monitored_by |
changes in brightness
|
| gptkbp:is_notable_for |
its ring-like appearance
|
| gptkbp:is_noted_for |
its aesthetic beauty in images
|
| gptkbp:is_observed_in |
professional astronomers
spectroscopy techniques astronomical events various wavelengths including optical and infrared |
| gptkbp:is_part_of |
gptkb:the_Milky_Way_galaxy
gptkb:Milky_Way_galaxy the Messier catalog the history of astronomy the study of cosmic phenomena the study of cosmic evolution the Hubble Space Telescope observations the Local Group of galaxies the astronomical community's interest the planetary nebula phase of stellar evolution |
| gptkbp:is_referenced_in |
gptkb:literature
|
| gptkbp:is_related_to |
the study of white dwarfs
|
| gptkbp:is_studied_for |
its chemical composition
its physical properties |
| gptkbp:is_studied_in |
astrophysics
|
| gptkbp:is_surrounded_by |
a faint halo of gas
|
| gptkbp:is_used_for |
a reference object in astronomy
|
| gptkbp:is_visible_from |
gptkb:Northern_Hemisphere
the northern hemisphere with small telescopes |
| gptkbp:known_as |
gptkb:Ring_Nebula
gptkb:the_Ring_Nebula |
| gptkbp:located_in |
gptkb:Lyra_constellation
|
| gptkbp:photography |
amateur astronomers
|
| gptkbp:size |
about 1 light-year across
|
| gptkbp:type |
gptkb:Nebula_Award
|
| gptkbp:bfsParent |
gptkb:Lyra
gptkb:M57_motorway |
| gptkbp:bfsLayer |
5
|