|
gptkbp:instance_of
|
gptkb:galaxy
|
|
gptkbp:apparent_magnitude
|
8.4
|
|
gptkbp:body_shape
|
gptkb:active_galactic_nucleus
|
|
gptkbp:conducts_research_on
|
galactic dynamics
|
|
gptkbp:contains
|
gptkb:NGC_5195
|
|
gptkbp:contains_star
|
multiple star formation regions
|
|
gptkbp:coordinates
|
RA 13h 29m 52.7s, Dec +47° 11′ 42″
|
|
gptkbp:diameter
|
approximately 76,000 light-years
|
|
gptkbp:discovered_by
|
gptkb:Pierre_Méchain
|
|
gptkbp:discovery_year
|
1773
|
|
gptkbp:distance_from_earth
|
approximately 23 million light-years
|
|
gptkbp:exhibition
|
gptkb:Messier_51
NGC catalog
|
|
gptkbp:foot
|
two prominent spiral arms
|
|
gptkbp:has_color
|
B-V = 0.65
blue and pink hues due to star formation
|
|
gptkbp:has_gravitational_interaction
|
with NGC 5195
|
|
gptkbp:has_historical_significance
|
one of the first galaxies to be recognized as a spiral
|
|
gptkbp:has_spectral_type
|
Sbc
|
|
gptkbp:has_supernova
|
gptkb:SN_1994_I
|
|
gptkbp:has_tidal_tail
|
due to interaction with NGC 5195
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M51 (Whirlpool Galaxy)
|
|
gptkbp:included
|
astronomy textbooks
|
|
gptkbp:interacts_with
|
gptkb:NGC_5195
|
|
gptkbp:is_associated_with
|
Hubble's law
the concept of galactic morphology
|
|
gptkbp:is_featured_in
|
various documentaries
|
|
gptkbp:is_known_for
|
its beautiful spiral structure
|
|
gptkbp:is_noted_for
|
its bright core
its interaction with NGC 5195
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
infrared wavelengths
ground-based telescopes
|
|
gptkbp:is_part_of
|
gptkb:Local_Group
the Virgo Supercluster
the Local Supercluster
|
|
gptkbp:is_part_of_research_field
|
extragalactic astronomy
|
|
gptkbp:is_popular_in
|
amateur astronomy
|
|
gptkbp:is_referenced_in
|
gptkb:literature
|
|
gptkbp:is_studied_for
|
star formation rates
its gas and dust composition
|
|
gptkbp:is_studied_in
|
galaxy formation and evolution
|
|
gptkbp:is_used_as_example
|
in astrophysics courses
|
|
gptkbp:is_used_in
|
studies of dark matter
|
|
gptkbp:is_visible_from
|
yes
northern hemisphere
small telescopes
|
|
gptkbp:lighting
|
approximately 23.5 mag/arcsec²
|
|
gptkbp:located_in
|
gptkb:Canes_Venatici
|
|
gptkbp:mass
|
approximately 160 billion solar masses
|
|
gptkbp:members
|
gptkb:M51_Group
|
|
gptkbp:motto
|
captured by various telescopes
|
|
gptkbp:notable_galaxies
|
SA(s)bc
|
|
gptkbp:part_of
|
gptkb:Messier_catalog
|
|
gptkbp:photography
|
amateur astronomers
|
|
gptkbp:redshift
|
0.0014
|
|
gptkbp:storage
|
available in various wavelengths
|
|
gptkbp:type
|
gptkb:spiral_galaxy
|