|
gptkbp:instance_of
|
gptkb:observatory
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:The_Quasar
|
|
gptkbp:aircraft_operated
|
gptkb:theorem
towards Earth
|
|
gptkbp:apparent_magnitude
|
12.9
|
|
gptkbp:associated_with
|
the 3 C catalog
|
|
gptkbp:depicted_in
|
naked eye under ideal conditions
|
|
gptkbp:discovered_by
|
Astronomer A. C. Becker
|
|
gptkbp:distance
|
approximately 2.5 billion light-years
|
|
gptkbp:emissions_standard
|
H-alpha
CIV
Fe II
H-beta
Mg II
|
|
gptkbp:first_appearance
|
gptkb:theorem
optical wavelengths
X-ray wavelengths
radio wavelengths
gamma-ray wavelengths
|
|
gptkbp:first_described_by
|
a quasar
|
|
gptkbp:has_luminosity
|
gptkb:theorem
approximately 4 times that of the Milky Way
|
|
gptkbp:has_spectral_type
|
broad emission lines
Luminous blue variable
|
|
gptkbp:has_variants
|
days to weeks
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
3 C 273
|
|
gptkbp:image
|
in various wavelengths
|
|
gptkbp:is_active_in
|
gptkb:theorem
|
|
gptkbp:is_considered
|
a prototype for quasars.
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:is_part_of
|
many astronomical studies
the 3 C survey
the brightest quasars
|
|
gptkbp:is_studied_in
|
extensively
|
|
gptkbp:is_used_for
|
a standard candle for cosmology
|
|
gptkbp:lens_type
|
gptkb:theorem
|
|
gptkbp:lighting
|
observed
detected
|
|
gptkbp:located_in
|
gptkb:Virgo_constellation
|
|
gptkbp:mass
|
approximately 886 million solar masses
|
|
gptkbp:ray_tracing_support
|
gptkb:theorem
|
|
gptkbp:redshift
|
0.158
|
|
gptkbp:stations
|
gptkb:theorem
|
|
gptkbp:storage
|
gptkb:theorem
|
|
gptkbp:type
|
gptkb:horse_race
|
|
gptkbp:year_created
|
gptkb:1963
|