|
gptkbp:instance_of
|
gptkb:galaxy
|
|
gptkbp:apparent_magnitude
|
9.58
9.6
|
|
gptkbp:apparent_size
|
7.0 x 6.5 arcminutes
|
|
gptkbp:average_temperature
|
~10,000 K
~10^7 K
|
|
gptkbp:body_shape
|
gptkb:active_galactic_nucleus
yes
|
|
gptkbp:composed_of
|
metal-rich
mostly hydrogen and helium
|
|
gptkbp:conducts_research_on
|
gptkb:active_galactic_nuclei
gptkb:gravitational_waves
high-energy astrophysics
galaxy formation
stellar dynamics
stellar evolution
galactic evolution
cosmic microwave background
cosmological simulations
large-scale structure of the universe
galaxy mergers
stellar populations
exoplanet studies
multi-messenger astronomy
black hole physics
nuclear astrophysics
dark matter studies
galaxy interactions
supermassive black hole growth
|
|
gptkbp:contains
|
gptkb:dark_matter
gptkb:supermassive_black_hole
hot gas
globular clusters
|
|
gptkbp:contains_star
|
gptkb:Virgo_Cluster
gptkb:Virgo_II_Group
over 15,000
over 12,000
0.5 solar masses per year
low rate
low level
Virgo I Group
with M84
|
|
gptkbp:coordinates
|
12h 30m 49.423s, +12° 23′ 28.04″
l = 284.9°, b = +75.2°
l = 284.4°, b = 70.4°
|
|
gptkbp:declination
|
+12° 23' 28.04"
|
|
gptkbp:diameter
|
120,000 light-years
120,000 light years
|
|
gptkbp:discovered_by
|
gptkb:Charles_Messier
|
|
gptkbp:discovery_year
|
1781
|
|
gptkbp:distance
|
31.5 mag
|
|
gptkbp:distance_from_earth
|
53.5 million light-years
53.5 million light years
|
|
gptkbp:emissions_standard
|
yes
|
|
gptkbp:exhibition
|
gptkb:Hubble_Space_Telescope
gptkb:New_General_Catalogue
gptkb:M87
gptkb:Messier_catalog
|
|
gptkbp:first_image_of_black_hole
|
April 2019
April 10, 2019
|
|
gptkbp:has_b-vcolor_index
|
0.94
|
|
gptkbp:has_central_density
|
~0.1 M☉/pc³
|
|
gptkbp:has_color
|
B-V = 0.9
|
|
gptkbp:has_component
|
yes
|
|
gptkbp:has_core_density
|
~0.5 M☉/pc³
|
|
gptkbp:has_cosmological_importance
|
yes
|
|
gptkbp:has_event_horizon_telescope_observation
|
gptkb:2019
|
|
gptkbp:has_features
|
E0-1
|
|
gptkbp:has_first_image_of_black_hole
|
April 10, 2019
|
|
gptkbp:has_galaxy_classification
|
c D galaxy
|
|
gptkbp:has_galaxy_dynamics
|
elliptical dynamics
|
|
gptkbp:has_galaxy_morphology
|
smooth and featureless
|
|
gptkbp:has_game
|
NED 1232
|
|
gptkbp:has_gravitational_lensing
|
yes
|
|
gptkbp:has_historical_significance
|
first direct image of a black hole
first galaxy with a black hole image
|
|
gptkbp:has_intergalactic_interactions
|
yes
|
|
gptkbp:has_jet_emission
|
radio and optical
|
|
gptkbp:has_jet_length
|
over 5,000 light-years
|
|
gptkbp:has_jet_speed
|
~0.93c
|
|
gptkbp:has_jet_width
|
~1,000 light-years
|
|
gptkbp:has_luminosity
|
2.5 × 10^12 L☉
~10^42 erg/s
~10^10 L☉
~10^11 L☉
~10^24 W/ Hz
|
|
gptkbp:has_mass_distribution
|
isotropic
|
|
gptkbp:has_mass_to_light_ratio
|
~100 solar masses per solar luminosity
|
|
gptkbp:has_massive_star_formation
|
yes
|
|
gptkbp:has_mechanic
|
dynamically relaxed
|
|
gptkbp:has_ngc
|
gptkb:NGC_4486
|
|
gptkbp:has_observational_data
|
Hubble Space Telescope, Chandra X-ray Observatory
|
|
gptkbp:has_planetary_nebula
|
gptkb:NGC_4486_B
|
|
gptkbp:has_radio_lobes
|
yes
|
|
gptkbp:has_spectral_type
|
gptkb:E
E1
E0-1
E0
|
|
gptkbp:has_supernova
|
gptkb:SN_1990_B
yes
|
|
gptkbp:has_ultraviolet_luminosity
|
~10^9 L☉
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 87
|
|
gptkbp:impact
|
yes
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:is_part_of
|
gptkb:Virgo_constellation
|
|
gptkbp:is_studied_in
|
gptkb:astronomy
|
|
gptkbp:is_used_in_cosmology
|
yes
|
|
gptkbp:is_visible_from
|
yes
|
|
gptkbp:jet_length
|
over 5000 light-years
|
|
gptkbp:jet_speed
|
up to 99% of the speed of light
|
|
gptkbp:lighting
|
yes
23.5 mag/arcsec²
|
|
gptkbp:located_in
|
gptkb:Virgo_Cluster
|
|
gptkbp:mass
|
old stars
6.4 × 10^12 solar masses
6.5 billion solar masses
6.4 × 10^9 solar masses
|
|
gptkbp:notable_feature
|
gptkb:supermassive_black_hole
M87* (black hole)
|
|
gptkbp:notable_galaxies
|
gptkb:Eberron
gptkb:NGC_4486_A
yes
E1
E0
M86, M84
|
|
gptkbp:notable_pilots
|
yes
relativistic jet
|
|
gptkbp:orbit_type
|
gptkb:NGC_4486_A
yes
|
|
gptkbp:orbital_period
|
with M86
|
|
gptkbp:population_density
|
~10 stars/pc³
|
|
gptkbp:previous_name
|
gptkb:NGC_4486
gptkb:3_C_274
gptkb:Virgo_A
|
|
gptkbp:redshift
|
0.00436
|
|
gptkbp:research
|
yes
observed by Hubble Space Telescope
observed by many telescopes
|
|
gptkbp:right_ascension
|
12h 30m 49.423s
|
|
gptkbp:speed
|
~300 km/s
|
|
gptkbp:storage
|
yes
|
|
gptkbp:surface
|
yes
|
|
gptkbp:type
|
gptkb:spiral_galaxy
|
|
gptkbp:universe
|
yes
|
|
gptkbp:bfsParent
|
gptkb:Virgo
gptkb:Messier_catalog
gptkb:Virgo_Supercluster
|
|
gptkbp:bfsLayer
|
5
|