Triangulum Galaxy
E20155
The Triangulum Galaxy is a nearby spiral galaxy in the Local Group, notable as one of the closest large galaxies to the Milky Way and a companion to the Andromeda Galaxy.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Triangulum Galaxy canonical | 11 |
| M33 | 6 |
| Messier 33 | 4 |
| Triangulum | 2 |
| Triangulum Galaxy (M33) | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Local Group member
ⓘ
galaxy ⓘ spiral galaxy ⓘ |
| alsoKnownAs |
Triangulum Galaxy
ⓘ
surface form:
M33
Triangulum Galaxy ⓘ
surface form:
Messier 33
NGC 598 ⓘ |
| angularSize | approximately 70 by 40 arcminutes ⓘ |
| apparentMagnitudeV | 5.7 ⓘ |
| belongsTo |
Andromeda subgroup
ⓘ
surface form:
Andromeda subgroup of the Local Group
|
| canBeSeenWith | binoculars under dark skies ⓘ |
| catalog |
Messier catalogue
ⓘ
New General Catalogue ⓘ |
| companionOf | Andromeda Galaxy ⓘ |
| contains | large reservoirs of neutral hydrogen ⓘ |
| declination | +30° 39′ 36″ ⓘ |
| diameter | about 60,000 light-years ⓘ |
| discoveredBy | Giovanni Battista Hodierna ⓘ |
| discoveryYear | 1654 ⓘ |
| distanceFromEarth |
about 0.9 megaparsecs
ⓘ
about 3 million light-years ⓘ |
| galaxyType | unbarred spiral galaxy ⓘ |
| gasRich | true ⓘ |
| hasHIIRegion | NGC 604 ⓘ |
| hasSatelliteGalaxy | Pisces Dwarf Galaxy ⓘ |
| hasSupernovaRemnant | multiple known supernova remnants ⓘ |
| isGravitationallyBoundTo | likely Andromeda Galaxy ⓘ |
| isThirdLargestIn | Local Group ⓘ |
| liesInDirectionOf | Northern sky ⓘ |
| locatedInConstellation |
Triangulum Galaxy
self-linksurface differs
ⓘ
surface form:
Triangulum
|
| mass | about 5×10^10 solar masses ⓘ |
| memberOf | Local Group ⓘ |
| metallicity | sub-solar average metallicity ⓘ |
| morphologicalType | SA(s)cd ⓘ |
| notableFeature |
high star formation rate
ⓘ
rich in H II regions ⓘ well-defined spiral structure ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ ultraviolet wavelengths ⓘ |
| oneOfClosestLargeGalaxiesTo | Milky Way ⓘ |
| radialVelocity | about −179 km/s ⓘ |
| redshift | z ≈ −0.000597 ⓘ |
| rightAscension | 01h 33m 50.9s ⓘ |
| rotationCurve | used to study dark matter distribution ⓘ |
| starFormationRate | about 0.5–1 solar masses per year ⓘ |
| stellarMass | about 3–6×10^9 solar masses ⓘ |
| usedAs | calibrator for the extragalactic distance scale ⓘ |
Referenced by (24)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Messier 33
this entity surface form:
M33
this entity surface form:
Triangulum
this entity surface form:
Messier 33
this entity surface form:
M33
this entity surface form:
M33
this entity surface form:
Messier 33
this entity surface form:
Triangulum
this entity surface form:
M33
this entity surface form:
M33
this entity surface form:
M33