Statements (109)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:star
|
| gptkbp:bfsLayer |
4
|
| gptkbp:bfsParent |
gptkb:Gemini_constellation
gptkb:Gemini gptkb:Perseus |
| gptkbp:age |
gptkb:NGC_2243
gptkb:NGC_188 approximately 1 billion years about 2 billion years |
| gptkbp:apparent_magnitude |
10.5
11.5 |
| gptkbp:associated_with |
gptkb:Gemini_constellation
|
| gptkbp:base |
best viewed with a telescope
|
| gptkbp:contains |
present
young stars old stars several hundred stars |
| gptkbp:coordinates |
RA 06h 00m 27s, Dec +24° 05′ 00″
RA 06h 00m 42s, Dec +24° 05′ 00″ |
| gptkbp:declination |
+24° 05′ 00″
|
| gptkbp:depicted_in |
gptkb:Northern_Hemisphere
gptkb:sneaker gptkb:museum northern hemisphere with binoculars best viewed in winter months |
| gptkbp:diameter |
approximately 10 light years
about 10 light years |
| gptkbp:discovered_by |
gptkb:William_Herschel
|
| gptkbp:distance |
about 16,000 light years
approximately 16,000 light years |
| gptkbp:exhibition |
gptkb:New_General_Catalogue
|
| gptkbp:has_color |
1.1
B-V = 0.65 |
| gptkbp:has_spectral_type |
various types
various types present |
| https://www.w3.org/2000/01/rdf-schema#label |
NGC 2158
|
| gptkbp:image |
Hubble Space Telescope image available
|
| gptkbp:is_associated_with |
gptkb:open_cluster_population_II
stellar populations |
| gptkbp:is_located_near |
gptkb:NGC_2159
gptkb:NGC_2164 the Orion arm of the Milky Way |
| gptkbp:is_noted_for |
its historical significance in astronomy
its rich star population its position in the sky its compactness its high concentration of stars its unique stellar population its contribution to the understanding of star clusters. its age and metallicity |
| gptkbp:is_observed_in |
gptkb:Hubble_Space_Telescope
infrared wavelengths ground-based telescopes |
| gptkbp:is_part_of |
gptkb:Galactic_Halo
gptkb:observatory gptkb:Milky_Way_Galaxy gptkb:Milky_Way_galaxy gptkb:the_Local_Group Galactic halo Galactic disk open cluster category the Milky Way's stellar population Milky Way open clusters open cluster NGC 2164 the Milky Way's open cluster system |
| gptkbp:is_similar_to |
gptkb:NGC_2160
gptkb:NGC_2162 |
| gptkbp:is_studied_in |
chemical composition
stellar dynamics stellar evolution star formation history stellar evolution models stellar interactions stellar population synthesis dynamical evolution star cluster formation stellar kinematics its gravitational interactions stellar metallicity stellar mass functions mass segregation its role in galactic evolution binary star populations color-magnitude diagrams mass loss in clusters |
| gptkbp:lighting |
moderate brightness
|
| gptkbp:located_in |
constellation Gemini
declination +24° 05' 00" right ascension 06h 00m 00s Galactic coordinates l = 180°, b = -10° |
| gptkbp:mass |
approximately 1,000 solar masses
|
| gptkbp:metallicity |
solar metallicity
[ Fe/ H] = -0.2 |
| gptkbp:notable_for |
its age
its compactness its star density |
| gptkbp:notable_person |
contains several red giants
|
| gptkbp:population |
high density
|
| gptkbp:research |
observed by various astronomers
|
| gptkbp:right_ascension |
06h 00m 27s
06h 00m 42s |
| gptkbp:scientific_classification |
a galactic open cluster
open cluster in the Milky Way a globular cluster in some catalogs |
| gptkbp:type |
gptkb:star
Galactic open cluster |
| gptkbp:year_created |
1784
1786 |