M25
E459052
M25 is a bright open star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping in the Milky Way.
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
deep-sky object ⓘ open star cluster ⓘ |
| addedToMessierCatalogueBy | Charles Messier NERFINISHED ⓘ |
| age |
(8–100) million years range
ⓘ
~90 million years ⓘ |
| angularSize | 32 arcminutes ⓘ |
| apparentMagnitudeV | 4.6 ⓘ |
| appearsIn |
Index Catalogue
NERFINISHED
ⓘ
Messier Catalogue NERFINISHED ⓘ New General Catalogue NERFINISHED ⓘ |
| approximateNumberOfMemberStars | >100 ⓘ |
| bestSeenFrom |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere NERFINISHED ⓘ |
| bestSeenIn | summer ⓘ |
| catalogCode |
IC 4725
NERFINISHED
ⓘ
Messier 25 NERFINISHED ⓘ NGC 4725 NERFINISHED ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| containsCepheidVariable | U Sagittarii NERFINISHED ⓘ |
| containsVariableStar | U Sagittarii NERFINISHED ⓘ |
| declination | −19° 15′ ⓘ |
| discoveredBy | Philippe Loys de Chéseaux NERFINISHED ⓘ |
| discoveryYear | 1745 ⓘ |
| distanceFromEarth |
~2000 light-years
ⓘ
~600 parsecs ⓘ |
| galacticLatitude | −5.7° ⓘ |
| galacticLongitude | 13.9° ⓘ |
| hasIntegratedSpectralType | approximately F ⓘ |
| hasTrumplerClassification | II,3,m ⓘ |
| isPartOf | Sagittarius star cloud region NERFINISHED ⓘ |
| isSubjectOf |
Cepheid calibration studies
ⓘ
open cluster evolution studies ⓘ |
| locatedIn |
Milky Way
ⓘ
Sagittarius Arm NERFINISHED ⓘ |
| locatedNear | Galactic plane NERFINISHED ⓘ |
| messierCatalogueEntryYear | 1764 ⓘ |
| observedIn | optical wavelengths ⓘ |
| rightAscension | 18h 31m ⓘ |
| stellarPopulation | young stars ⓘ |
| visibleWith |
binoculars
ⓘ
small telescope ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.