Caldwell 49
E450951
Caldwell 49 is a large, bright emission nebula and star-forming region in the constellation Monoceros, popularly known as the Rosette Nebula.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
astronomical object ⓘ deep-sky object ⓘ emission nebula ⓘ star-forming region ⓘ |
| alsoKnownAs | Rosette Nebula NERFINISHED ⓘ |
| angularSize | about 1.3 degrees ⓘ |
| apparentMagnitude | about 9.0 ⓘ |
| appearsColor | reddish in long-exposure images ⓘ |
| associatedOpenCluster | NGC 2244 NERFINISHED ⓘ |
| bestSeenIn |
small telescopes
ⓘ
wide-field astrophotography ⓘ |
| catalogCode | C49 ⓘ |
| catalogDesignation |
LBN 948
NERFINISHED
ⓘ
Sh 2-275 NERFINISHED ⓘ Sharpless 275 NERFINISHED ⓘ |
| centralRegion | cavity cleared by stellar winds ⓘ |
| contains |
Bok globules
NERFINISHED
ⓘ
molecular clouds ⓘ open cluster NGC 2244 ⓘ protostars ⓘ young stellar objects ⓘ |
| declination | +04° 59′ ⓘ |
| diameter | about 130 light-years ⓘ |
| discoveryStatus | known since 18th century ⓘ |
| distanceFromEarth |
about 1,500 parsecs
ⓘ
about 5,000 light-years ⓘ |
| dominantEmissionLine |
H-alpha
ⓘ
[O III] ⓘ |
| galacticLatitude | about -2 degrees ⓘ |
| galacticLongitude | about 206 degrees ⓘ |
| hasFeature |
photoionized gas
ⓘ
pillars and globules shaped by radiation pressure ⓘ strong stellar winds from massive stars ⓘ |
| ionizedBy | massive stars of NGC 2244 ⓘ |
| isRegionOf | active star formation ⓘ |
| locatedIn | Orion Arm NERFINISHED ⓘ |
| locatedInConstellation | Monoceros NERFINISHED ⓘ |
| observedInWavelength |
infrared
ⓘ
optical ⓘ radio ⓘ |
| partOf |
Milky Way
NERFINISHED
ⓘ
Rosette Molecular Cloud NERFINISHED ⓘ |
| rightAscension | about 06h 33m ⓘ |
| shape | roughly circular ring-like structure ⓘ |
| spectralTypeOfExcitingStars |
B-type
ⓘ
O-type ⓘ |
| visibleFrom |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.