|
gptkbp:instance_of
|
gptkb:open_cluster
gptkb:star
|
|
gptkbp:age
|
approximately 300 million years
|
|
gptkbp:apparent_magnitude
|
6.1
available
|
|
gptkbp:archaeological_findings
|
noted by various astronomers
|
|
gptkbp:associated_with
|
open cluster family
|
|
gptkbp:best_time_to_visit
|
winter months
|
|
gptkbp:cluster_age_estimation
|
based on stellar models
|
|
gptkbp:cluster_dynamics_study
|
ongoing research
|
|
gptkbp:cluster_shape
|
irregular shape
|
|
gptkbp:contains
|
planetary nebula NGC 2438
|
|
gptkbp:contains_star
|
about 100
over 100 stars
ongoing in some regions
gravitational interactions present
|
|
gptkbp:coordinates
|
RA 07h 42m 18s, Dec -14° 50′ 00″
l=240°, b=-5°
|
|
gptkbp:criteria
|
based on distance and motion
|
|
gptkbp:declination
|
-14° 50′ 00″
|
|
gptkbp:diameter
|
approximately 30 light years
|
|
gptkbp:discovered_by
|
gptkb:Pierre_Méchain
|
|
gptkbp:discovery_year
|
1771
February 19, 1781
|
|
gptkbp:distance_from_earth
|
5000 light years
approximately 5,400 light years
|
|
gptkbp:distance_measurement_method
|
parallax
|
|
gptkbp:environment
|
Galactic halo influence
|
|
gptkbp:exhibition
|
gptkb:Messier_catalog
|
|
gptkbp:first_appearance
|
gptkb:Charles_Messier
1781
|
|
gptkbp:has_color
|
0.5
B-V = 0.50
|
|
gptkbp:has_spectral_type
|
various
various types including O, B, A, F, G, K, M
|
|
gptkbp:historical_significance
|
one of the first clusters cataloged
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 46
|
|
gptkbp:image
|
Hubble image available
|
|
gptkbp:interstellar_medium_influence
|
present in the region
|
|
gptkbp:is_located_near
|
gptkb:Messier_47
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
various wavelengths
|
|
gptkbp:is_part_of
|
gptkb:Milky_Way_galaxy
|
|
gptkbp:is_similar_to
|
gptkb:Messier_47
|
|
gptkbp:is_visible_from
|
gptkb:Northern_Hemisphere
gptkb:sunglasses
|
|
gptkbp:lighting
|
moderately bright
visible under dark skies
available for some stars
|
|
gptkbp:located_in
|
constellation Puppis
|
|
gptkbp:mass
|
young to intermediate age stars
|
|
gptkbp:notable_feature
|
NGC 2438 nebula
|
|
gptkbp:notable_person
|
multiple star systems present
|
|
gptkbp:operating_hours
|
winter months
|
|
gptkbp:part_of
|
gptkb:Milky_Way_galaxy
|
|
gptkbp:photometric_variability
|
some stars exhibit variability
|
|
gptkbp:population_density
|
moderate density
|
|
gptkbp:related_clusters
|
gptkb:NGC_2477
|
|
gptkbp:research
|
telescopes and binoculars
faintness of stars
|
|
gptkbp:research_interest
|
stellar evolution studies
|
|
gptkbp:right_ascension
|
07h 42m 18s
|
|
gptkbp:size
|
approximately 30 light years across
|
|
gptkbp:spectroscopic_data
|
available
|
|
gptkbp:stellar_evolution_stages
|
various stages observed
|
|
gptkbp:stellar_mass_function
|
follows typical distribution
|
|
gptkbp:stellar_mass_range
|
varied mass stars present
|
|
gptkbp:stellar_population_diversity
|
high diversity in types
|
|
gptkbp:stellar_wind_effects
|
observed in some stars
|
|
gptkbp:storage
|
available
|
|
gptkbp:type
|
gptkb:open_cluster
Galactic open cluster
|
|
gptkbp:visible_with_binoculars
|
gptkb:true
|
|
gptkbp:bfsParent
|
gptkb:Canis_Minor
|
|
gptkbp:bfsLayer
|
5
|