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.