Holmberg II
E450571
Holmberg II is a dwarf irregular galaxy notable for its prominent gas structures and active star-forming regions, located in the nearby M81 Group.
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
dwarf irregular galaxy
ⓘ
galaxy ⓘ |
| apparentMagnitudeV | ~11.1 ⓘ |
| belongsTo | nearby M81 galaxy complex ⓘ |
| catalogCode |
DDO 50
NERFINISHED
ⓘ
PGC 23324 NERFINISHED ⓘ UGC 4305 NERFINISHED ⓘ |
| contains |
H II regions
ⓘ
massive stars ⓘ molecular clouds ⓘ neutral hydrogen gas ⓘ young stellar populations ⓘ |
| discoveredBy | Erik Holmberg NERFINISHED ⓘ |
| distanceFromEarth |
~11 million light-years
ⓘ
~3.4 Mpc ⓘ |
| environment | nearby galaxy group ⓘ |
| hasGalaxyMorphologicalType | Im ⓘ |
| hasGalaxyType | Magellanic-type irregular ⓘ |
| hasLow |
metallicity
ⓘ
stellar mass ⓘ |
| hasNotableObject | Holmberg II X-1 NERFINISHED ⓘ |
| hasNotableResearchTopic |
feedback from massive stars
ⓘ
structure of the interstellar medium in dwarf galaxies ⓘ ultraluminous X-ray sources in dwarf galaxies ⓘ |
| hasProminentFeature |
H I holes
ⓘ
X-ray source Holmberg II X-1 NERFINISHED ⓘ active star-forming regions ⓘ extended neutral hydrogen disk ⓘ gas structures ⓘ supershells ⓘ |
| hasStarFormationActivity | high ⓘ |
| locatedIn |
M81 Group
NERFINISHED
ⓘ
Ursa Major constellation NERFINISHED ⓘ |
| memberOf | M81 Group NERFINISHED ⓘ |
| namedAfter | Erik Holmberg NERFINISHED ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | local universe ⓘ |
| radialVelocity | ~157 km/s ⓘ |
| redshift | 0.00048 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.