Sh 2-275

E450953

Sh 2-275 is a large, circular emission nebula in the constellation Monoceros, notable for its active star-forming region and striking rosette-like appearance.

All labels observed (1)

Label Occurrences
Sh 2-275 canonical 4

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf H II region
deep-sky object
emission nebula
star-forming region
alsoKnownAs Rosette Nebula
Sh2-275
linked to: Sharpless 2-275

Sharpless 2-275
associatedWith NGC 2244
contains Bok globules
molecular clouds
open cluster NGC 2244
linked to: NGC 2244

protostars
young stellar objects
discoveredBy John Herschel (nebular region around NGC 2244)
linked to: John Herschel
excitedBy young massive stars
hasAge a few million years (ionizing cluster NGC 2244)
hasAlternativeDesignation Caldwell 49
LBN 948
SNR G206.3-02.1 (historical association, not a supernova remnant)
hasAngularSize about 1.3 degrees
hasApparentMagnitude 9.0
hasAppearance rosette-like
hasCatalogNumber Sh 2-275
hasCentralRegion open cluster NGC 2244
hasColor reddish
hasDeclination +04° 57′
hasDistanceFromEarth about 1.6 kiloparsecs
about 5200 light-years
hasDominantEmissionLine H-alpha
[O III]
[S II]
hasMorphology large circular nebula
hasRightAscension 06h 31m
ionizedBy OB stars in NGC 2244
isCataloguedIn Sharpless 2 catalog
linked to: Sharpless catalogue

Sharpless catalog
linked to: Sharpless catalogue
isPopularTargetFor amateur astronomers
astrophotographers
isRegionOf active star formation
locatedIn Orion Arm
locatedInConstellation Monoceros
observedIn infrared wavelengths
optical wavelengths
radio wavelengths
partOf Milky Way
visibleIn Northern Hemisphere winter sky
Southern Hemisphere summer sky

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.