Messier 51

GPTKB entity

Statements (88)
Predicate Object
gptkbp:instance_of gptkb:galaxy
gptkbp:apparent_magnitude approximately 8.4
gptkbp:body_shape gptkb:active_galactic_nucleus
active galactic nucleus (AGN)
gptkbp:conducts_research_on galaxy evolution studies
gptkbp:contains gptkb:supernova_SN_1994_I
gptkbp:contains_star gptkb:NGC_5195
yes
active star formation
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_catalog
gptkbp:has_color B-V = 0.65
gptkbp:has_features interacting galaxy
spiral galaxy with a bar
gptkbp:has_historical_significance one of the first galaxies identified as a spiral
first spiral galaxy identified
gptkbp:has_relationship_with gptkb:NGC_5195
gptkbp:has_spectral_type SAB(rs)bc
Sbc
gptkbp:has_supernova gptkb:SN_1994_I
at its center
gptkbp:has_type gptkb:spiral_galaxy
https://www.w3.org/2000/01/rdf-schema#label Messier 51
gptkbp:included gptkb:the_New_General_Catalogue
various astronomical surveys
New General Catalogue (NGC)
gptkbp:interacts_with gptkb:NGC_5195
gptkbp:is_associated_with dark matter halo
the cosmic web
the study of galaxy formation
the starburst region
gptkbp:is_located_in constellation Canes Venatici
gptkbp:is_notable_for its interaction with NGC 5195
its beautiful spiral structure
gptkbp:is_observed_in the northern hemisphere
various wavelengths
radio telescopes
radio wavelengths
optical telescopes
gptkbp:is_part_of gptkb:Messier_catalog
gptkb:the_Local_Group
local group of galaxies
the Virgo Supercluster
the field of extragalactic astronomy
the study of cosmic evolution
the Laniakea Supercluster
the field of observational cosmology
the Messier 51 group
the Hubble Sequence
the Messier catalog of nebulae and star clusters
gptkbp:is_popular_in amateur astronomy
gptkbp:is_studied_for star formation rates
galaxy interactions
its structure and dynamics
its gravitational interactions
its stellar population
its gas and dust content
gptkbp:is_studied_in gptkb:astronomy
gptkbp:is_visible_from gptkb:Earth
gptkb:Seimas
northern hemisphere
small telescopes
with amateur telescopes
spring months
star charts.
gptkbp:known_as gptkb:Whirlpool_Galaxy
gptkbp:lighting approximately 23.5 mag/arcsec²
low surface brightness
gptkbp:located_in constellation Canes Venatici
gptkbp:members gptkb:M51_Group
gptkbp:notable_feature spiral arms
prominent spiral arms
gptkbp:notable_galaxies SA(s)bc
Sc
gptkbp:photography gptkb:Hubble_Space_Telescope
gptkbp:previous_name gptkb:Whirlpool_Galaxy
gptkbp:redshift 0.0014
approximately 0.0015
gptkbp:targets exoplanet searches
deep-sky observations
gptkbp:type gptkb:spiral_galaxy
gptkbp:bfsParent gptkb:The_Whirlpool_Galaxy
gptkb:Messier_catalog
gptkbp:bfsLayer 5