|
gptkbp:instance_of
|
gptkb:Nebula_Award
|
|
gptkbp:age
|
approximately 8,000 years
|
|
gptkbp:apparent_magnitude
|
13.8
|
|
gptkbp:associated_with
|
stellar evolution
mass loss
planetary nebula phase
|
|
gptkbp:body_shape
|
owl-like appearance
|
|
gptkbp:color
|
blue-green
|
|
gptkbp:contains
|
central star
ionized gas
|
|
gptkbp:discovered_by
|
gptkb:William_Parsons
|
|
gptkbp:discovery_year
|
1848
|
|
gptkbp:distance_from_earth
|
approximately 2,000 light years
|
|
gptkbp:emissions_standard
|
gptkb:N_II
H-alpha
O III
|
|
gptkbp:exhibition
|
gptkb:Messier_97
|
|
gptkbp:expansion_plans
|
about 30 km/s
|
|
gptkbp:features
|
ring structure
two prominent lobes
|
|
gptkbp:has
|
complex structure
|
|
gptkbp:has_radius
|
about 0.5 light years
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
the Owl Nebula
|
|
gptkbp:image
|
1970s
|
|
gptkbp:is_notable_for
|
its unique shape
its faintness
its central star
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
radio waves
visible light
infrared
|
|
gptkbp:is_part_of
|
gptkb:Messier_catalog
gptkb:Milky_Way_galaxy
NGC catalog
|
|
gptkbp:is_studied_for
|
chemical composition
light emission
stellar processes
|
|
gptkbp:is_visible_from
|
gptkb:Earth
best viewed in spring
|
|
gptkbp:known_as
|
gptkb:NGC_3587
|
|
gptkbp:lighting
|
faint
|
|
gptkbp:located_in
|
constellation Ursa Major
|
|
gptkbp:mass
|
around 0.6 solar masses
|
|
gptkbp:notable_feature
|
dark lanes
bright knots
|
|
gptkbp:research
|
gptkb:spectroscopy
photometry
|
|
gptkbp:significance
|
gptkb:astronomy
|
|
gptkbp:type
|
gptkb:Nebula_Award
|
|
gptkbp:bfsParent
|
gptkb:Ursa_Major
|
|
gptkbp:bfsLayer
|
5
|