Barnard's Galaxy
E140992
Barnard's Galaxy is a nearby irregular dwarf galaxy in the Local Group, notable for its low metallicity and active star formation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Barnard's Galaxy canonical | 2 |
| E E Barnard's Galaxy | 1 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Local Group galaxy
ⓘ
astronomical object ⓘ dwarf galaxy ⓘ irregular galaxy ⓘ |
| absoluteMagnitudeV | about −16 ⓘ |
| alsoKnownAs |
Caldwell 57
ⓘ
Barnard's Galaxy ⓘ
surface form:
E E Barnard's Galaxy
IC 4895 ⓘ NGC 6822 ⓘ |
| angularSize | about 15 by 13 arcminutes ⓘ |
| apparentMagnitudeV | about 9.3 ⓘ |
| catalogCode |
Caldwell 57
ⓘ
IC 4895 ⓘ NGC 6822 ⓘ |
| contains |
Cepheid variable stars
ⓘ
H II regions ⓘ neutral hydrogen gas ⓘ planetary nebulae ⓘ supernova remnants ⓘ young star clusters ⓘ |
| declination | −14° 48′ ⓘ |
| discoveredBy | Edward Emerson Barnard ⓘ |
| discoveryYear | 1884 ⓘ |
| distanceFromEarth |
about 1.6 million light-years
ⓘ
about 500 kiloparsecs ⓘ |
| hasProperty |
active star formation
ⓘ
gas-rich ⓘ irregular morphology ⓘ low surface brightness ⓘ no prominent bulge ⓘ no well-defined spiral structure ⓘ |
| hasStarFormationRate | on the order of 0.02 solar masses per year ⓘ |
| isNearbyTo | Milky Way ⓘ |
| locatedIn |
Sagittarius
ⓘ
surface form:
constellation Sagittarius
|
| mass | on the order of 10^9 solar masses ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | low metallicity ⓘ |
| morphologicalType | IB(s)m ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ radio wavelengths ⓘ |
| radialVelocity | about −57 km/s ⓘ |
| rightAscension | 19h 44m ⓘ |
| stellarPopulation | dominantly young and intermediate-age stars ⓘ |
| usedFor |
distance scale calibration using Cepheid variables
ⓘ
studies of star formation in low-metallicity environments ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
E E Barnard's Galaxy