gptkbp:instance_of
|
gptkb:star
|
gptkbp:age
|
approximately 3 million years
approximately 4 million years
|
gptkbp:apparent_magnitude
|
4.5
|
gptkbp:associated_with
|
gptkb:star
|
gptkbp:contains
|
gptkb:HD_46223
gptkb:HD_46225
gptkb:HD_46226
gptkb:HD_46227
gptkb:HD_46229
gptkb:HD_46232
gptkb:HD_46236
gptkb:HD_46237
gptkb:HD_46238
gptkb:HD_46239
gptkb:HD_46240
gptkb:HD_46241
gptkb:HD_46242
gptkb:HD_46243
gptkb:HD_46244
gptkb:HD_46245
gptkb:HD_46246
gptkb:HD_46247
gptkb:HD_46248
gptkb:HD_46249
gptkb:HD_46250
gptkb:HD_46251
gptkb:HD_46252
gptkb:HD_46253
gptkb:HD_46254
gptkb:HD_46255
gptkb:HD_46256
gptkb:HD_46257
gptkb:HD_46258
gptkb:HD_46259
gptkb:HD_46260
gptkb:HD_46261
gptkb:HD_46262
gptkb:HD_46263
gptkb:HD_46264
gptkb:HD_46265
gptkb:HD_46266
gptkb:HD_46267
gptkb:HD_46268
gptkb:HD_46269
gptkb:HD_46270
gptkb:HD_46271
gptkb:HD_46272
gptkb:HD_46273
gptkb:HD_46274
gptkb:HD_46275
gptkb:HD_46276
gptkb:HD_46277
gptkb:HD_46278
gptkb:HD_46279
gptkb:HD_46280
gptkb:HD_46281
gptkb:HD_46282
gptkb:HD_46283
gptkb:HD_46284
gptkb:HD_46285
gptkb:HD_46286
gptkb:HD_46287
gptkb:HD_46288
gptkb:HD_46289
gptkb:HD_46290
gptkb:HD_46291
gptkb:HD_46292
gptkb:HD_46293
gptkb:HD_46294
gptkb:HD_46295
gptkb:HD_46296
gptkb:HD_46297
gptkb:HD_46298
gptkb:HD_46299
gptkb:HD_46300
young massive stars
HD 46224
|
gptkbp:coordinates
|
RA 6h 32m 30s, Dec +4° 55′ 0″
|
gptkbp:declination
|
+04° 54′ 00″
|
gptkbp:depicted_in
|
with binoculars
best viewed in winter months
with small telescopes
|
gptkbp:diameter
|
approximately 20 light years
|
gptkbp:discovered_by
|
gptkb:John_Flamsteed
gptkb:John_Frederick_William_Herschel
|
gptkbp:distance
|
approximately 4,500 light years
|
gptkbp:exhibition
|
gptkb:New_General_Catalogue
gptkb:Messier_catalog
|
gptkbp:has_color
|
U-B = -0.1
B-V = 0.3
|
gptkbp:has_spectral_type
|
O-type stars
B-type stars
O and B type stars
|
https://www.w3.org/2000/01/rdf-schema#label
|
NGC 2244
|
gptkbp:is_observed_in
|
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope
|
gptkbp:is_part_of
|
gptkb:LBN_762
gptkb:IC_348
gptkb:NGC_2238
NGC 2237-9
Rosette star-forming region
Sharpless 273
|
gptkbp:lighting
|
diminishes visibility
apparent magnitude 6.3
|
gptkbp:located_in
|
gptkb:Rosette_Nebula
Monoceros constellation
|
gptkbp:mass
|
approximately 1,000 solar masses
|
gptkbp:metallicity
|
solar metallicity
|
gptkbp:mission
|
gptkb:Rosette_Nebula
|
gptkbp:notable_feature
|
gptkb:star
high stellar density
young massive stars
bright star cluster
surrounded by gas and dust
|
gptkbp:notable_person
|
gptkb:HD_46223
gptkb:HD_46225
gptkb:HD_46226
gptkb:HD_46229
HD 46224
|
gptkbp:part_of
|
gptkb:Milky_Way_Galaxy
|
gptkbp:photography
|
Amateur astronomers
|
gptkbp:related_to
|
gptkb:Rosette_Nebula
gptkb:NGC_2238
gptkb:NGC_2239
gptkb:NGC_2237
gptkb:NGC_2246
NGC 2247
NGC 2245
NGC 2248
NGC 2249
NGC 2250
|
gptkbp:research
|
requires telescope for viewing
|
gptkbp:research_focus
|
studied for star formation processes
studied for stellar evolution
studied for cluster dynamics
studied for galactic structure
|
gptkbp:right_ascension
|
06h 32m 00s
|
gptkbp:size
|
approximately 20 arcminutes
|
gptkbp:type
|
gptkb:star
|
gptkbp:year_created
|
1701
1831
|
gptkbp:bfsParent
|
gptkb:Columba
|
gptkbp:bfsLayer
|
3
|