|
gptkbp:instanceOf
|
gptkb:planetary_nebula
|
|
gptkbp:apparentMagnitude
|
9.0
|
|
gptkbp:associatedWith
|
star formation
|
|
gptkbp:bestViewedIn
|
February
|
|
gptkbp:catalogueNumber
|
gptkb:NGC_2237
gptkb:Caldwell_49
|
|
gptkbp:contains
|
gptkb:planetary_nebula
gptkb:B-type_stars
protostars
massive O-type stars
open cluster NGC 2244
several Bok globules
|
|
gptkbp:declination
|
+04° 59′ 54″
|
|
gptkbp:diameter
|
about 65 light-years
about 130 light-years
|
|
gptkbp:discoveredBy
|
gptkb:John_Flamsteed
|
|
gptkbp:discoveredIn
|
late 17th century
|
|
gptkbp:distanceFromEarth
|
about 5,200 light-years
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
gptkb:Southern_Hemisphere
astronomer
small telescope
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Rosette Nebula
|
|
gptkbp:ionizedBy
|
young, hot stars in NGC 2244
|
|
gptkbp:locatedIn
|
constellation Monoceros
|
|
gptkbp:mass
|
about 10,000 solar masses
|
|
gptkbp:notableFor
|
complex structure
active stellar nursery
central cavity
flower-like appearance
rich in hydrogen gas
|
|
gptkbp:otherDesignation
|
gptkb:NGC_2238
gptkb:NGC_2239
gptkb:Sh2-275
gptkb:NGC_2246
gptkb:Caldwell_49
|
|
gptkbp:partOf
|
gptkb:Monoceros_OB1_association
|
|
gptkbp:photographed
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:region
|
gptkb:planetary_nebula
|
|
gptkbp:rightAscension
|
06h 33m 45s
|
|
gptkbp:shape
|
circular
|
|
gptkbp:spectralType
|
gptkb:planetary_nebula
|
|
gptkbp:bfsParent
|
gptkb:Orion_Arm
|
|
gptkbp:bfsLayer
|
5
|