Messier 41
E506490
Messier 41 is an open star cluster located near Sirius in the constellation Canis Major, visible to the naked eye under good conditions.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | open star cluster ⓘ |
| addedToMessierCatalogueBy | Charles Messier NERFINISHED ⓘ |
| addedToMessierCatalogueYear | 1765 ⓘ |
| age | about 190 million years ⓘ |
| alsoKnownAs |
M41
NERFINISHED
ⓘ
NGC 2287 NERFINISHED ⓘ |
| angularSize | 38 arcminutes ⓘ |
| apparentDiameter | about 25 light-years ⓘ |
| apparentMagnitudeV | 5.0 ⓘ |
| bestObservationMonth | February ⓘ |
| bestSeenFromHemisphere |
Southern Hemisphere
ⓘ
low northern latitudes ⓘ |
| brightestStarApparentMagnitude | about 6.9 ⓘ |
| cataloguedIn |
Messier Catalogue
NERFINISHED
ⓘ
New General Catalogue NERFINISHED ⓘ |
| clusterTrumplerClass | III 2 r ⓘ |
| contains |
main-sequence stars
ⓘ
multiple star systems ⓘ red giant stars ⓘ |
| declination | −20° 44′ ⓘ |
| discoveredBy | Giovanni Battista Hodierna NERFINISHED ⓘ |
| discoveryDate | before 1654 ⓘ |
| discoveryIndependentlyReportedBy | John Flamsteed NERFINISHED ⓘ |
| discoveryIndependentlyReportedYear | 1702 ⓘ |
| distanceFromEarth |
approximately 2300 light-years
ⓘ
approximately 700 parsecs ⓘ |
| galacticLatitude | about −20 degrees ⓘ |
| galacticLongitude | about 227 degrees ⓘ |
| hasColorIndexBMinusV | about +0.2 ⓘ |
| hasCoreRadius | about 4 light-years ⓘ |
| hasTidalRadius | about 26 light-years ⓘ |
| locatedIn | Canis Major OB1 association NERFINISHED ⓘ |
| locatedInConstellation | Canis Major NERFINISHED ⓘ |
| locatedInGalaxy | Milky Way NERFINISHED ⓘ |
| messierCatalogueNumber | 41 ⓘ |
| metallicityRelativeToSun | slightly sub-solar ⓘ |
| nearbyBrightStar | Sirius NERFINISHED ⓘ |
| ngcNumber | 2287 ⓘ |
| numberOfStars | about 100 ⓘ |
| observationalSeason | winter ⓘ |
| observedBy | amateur astronomers ⓘ |
| observedInWavelength | optical ⓘ |
| rightAscension | 06h 46m ⓘ |
| separationFromSirius | about 4 degrees south ⓘ |
| visibleToNakedEye | yes ⓘ |
| visibleWith |
binoculars
ⓘ
small telescopes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.