NGC 884
E459044
NGC 884 is a young, bright open star cluster in the constellation Perseus, best known as one half of the famous Double Cluster visible to the naked eye.
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
open star cluster ⓘ star cluster ⓘ |
| age |
about 12.8 million years
ⓘ
on the order of 10 million years ⓘ |
| alsoKnownAs |
Caldwell 14
NERFINISHED
ⓘ
h Persei NERFINISHED ⓘ |
| angularSize | ~30 arcminutes ⓘ |
| apparentMagnitudeV | 6.1 ⓘ |
| belongsToAsterism | Double Cluster in Perseus NERFINISHED ⓘ |
| bestSeenFromHemisphere | Northern Hemisphere NERFINISHED ⓘ |
| bestViewingSeason |
northern autumn
ⓘ
northern winter ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| catalogNumber | NGC 884 NERFINISHED ⓘ |
| containsStarType |
B-type main-sequence stars
ⓘ
blue supergiants ⓘ variable stars ⓘ |
| declination | +57° 08′ ⓘ |
| discoveredBy | Hipparchus NERFINISHED ⓘ |
| distanceFromEarth |
about 2,300 parsecs
ⓘ
about 7,500 light-years ⓘ |
| galacticLatitude | about -4° ⓘ |
| galacticLongitude | about 135° ⓘ |
| hasApproximateStarCount | several hundred stars ⓘ |
| hasColorIndexBminusV | negative (blue-dominated) ⓘ |
| hasNeighboringObject | NGC 869 NERFINISHED ⓘ |
| hasNotableFeature |
forms one half of the Double Cluster
ⓘ
high concentration of hot, massive stars ⓘ prominent in wide-field astrophotography of Perseus region ⓘ |
| isGravitationallyBoundTo | NGC 869 (likely common origin) NERFINISHED ⓘ |
| isRichCluster | true ⓘ |
| isYoungCluster | true ⓘ |
| locatedIn |
Milky Way
ⓘ
Perseus Arm NERFINISHED ⓘ |
| locatedInConstellation | Perseus NERFINISHED ⓘ |
| observedInWavelength |
infrared
ⓘ
optical ⓘ |
| partOf | Double Cluster NERFINISHED ⓘ |
| rightAscension | 02h 22m ⓘ |
| separationFrom | NGC 869 ~30 arcminutes ⓘ |
| skyLocationRelativeTo | near the Perseus–Cassiopeia border ⓘ |
| visibleToNakedEye | true ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.