NGC 45
E591825
NGC 45 is a faint, low-surface-brightness spiral galaxy located relatively nearby in the constellation Cetus.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
extragalactic object
ⓘ
low-surface-brightness galaxy ⓘ spiral galaxy ⓘ |
| absoluteMagnitudeV | about −18 ⓘ |
| angularSize | 8.5′ × 5.2′ ⓘ |
| apparentMagnitudeV | 10.4 ⓘ |
| belongsTo | nearby galaxy population ⓘ |
| bestSeenFrom | southern hemisphere ⓘ |
| bestViewingSeason | northern autumn ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| constellation | Cetus NERFINISHED ⓘ |
| declination | −23° 10′ 55″ ⓘ |
| discoverer | John Herschel NERFINISHED ⓘ |
| discoveryDate | 1835 ⓘ |
| distanceFromEarth |
6.5 Mpc
ⓘ
approximately 21 million light-years ⓘ |
| dustContent | modest ⓘ |
| environment | relatively isolated galaxy ⓘ |
| epoch | J2000 ⓘ |
| galaxyType | unbarred spiral galaxy ⓘ |
| gasContent | rich in neutral hydrogen ⓘ |
| groupMembership | outlying member of Sculptor Group ⓘ |
| hasNucleus | weak or ill-defined nucleus ⓘ |
| hasStellarPopulation |
dominantly young stars in spiral arms
ⓘ
older stars in disk ⓘ |
| hasStructure |
diffuse disk
ⓘ
patchy spiral arms ⓘ |
| inclination | low inclination to line of sight ⓘ |
| locatedIn |
Sculptor Group region
NERFINISHED
ⓘ
local volume ⓘ |
| mass | lower mass than Milky Way ⓘ |
| metallicity | sub-solar ⓘ |
| morphologicalType | SA(s)dm ⓘ |
| observedBy | Hubble Space Telescope NERFINISHED ⓘ |
| observedIn |
optical wavelengths
ⓘ
radio wavelengths ⓘ |
| orientation | nearly face-on ⓘ |
| otherDesignation |
ESO 473- G 022
NERFINISHED
ⓘ
PGC 930 NERFINISHED ⓘ |
| radialVelocity | 448 km/s ⓘ |
| redshift | 0.001494 ⓘ |
| rightAscension | 00h 14m 03s ⓘ |
| rotationCurve | indicates presence of dark matter ⓘ |
| starFormationRate | relatively low ⓘ |
| supermassiveBlackHoleEvidence | no strong evidence for luminous AGN ⓘ |
| surfaceBrightness | low ⓘ |
| visibility | faint but observable with medium amateur telescopes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.