Properties (45)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
open cluster
|
| gptkbp:age |
approximately 300 million years
|
| gptkbp:associatedWith |
the_Cygnus_constellation_region
|
| gptkbp:contains |
gptkb:red_giants
approximately 30 multiple blue stars |
| gptkbp:established |
gptkb:Charles_Messier
|
| gptkbp:exhibits |
Messier catalog
|
| gptkbp:has |
a rich star field
|
| gptkbp:hasGoals |
gptkb:M67
M34 M44 |
| gptkbp:hasRecognition |
approximately 5.5
|
| gptkbp:hasVariants |
+48° 26′ 00″
|
| https://www.w3.org/2000/01/rdf-schema#label |
Messier 39
|
| gptkbp:isAccessibleBy |
gptkb:Northern_Hemisphere
naked eye small telescopes |
| gptkbp:isAvailableIn |
1,000 light years away from Earth
|
| gptkbp:isConsidered |
a good target for binoculars
|
| gptkbp:isEngagedIn |
William Herschel
|
| gptkbp:isInvolvedIn |
gptkb:the_New_General_Catalogue
|
| gptkbp:isLocatedIn |
gptkb:Messier's_original_list
declination +48° 26′ 00″ right ascension 20h 54m 30s |
| gptkbp:isLocatedNear |
gptkb:the_North_American_Nebula
|
| gptkbp:isNotedFor |
its loose structure
its star density |
| gptkbp:isOftenMadeWith |
other open clusters
|
| gptkbp:isOftenUsedIn |
astronomers
|
| gptkbp:isPartOf |
the_Cygnus_constellation
the_Milky_Way's_open_clusters |
| gptkbp:isUsedFor |
a galactic open cluster
|
| gptkbp:isUtilizedIn |
dark skies
|
| gptkbp:legalStatus |
20h 54m 30s
|
| gptkbp:length |
approximately 1,000 light years
|
| gptkbp:locatedIn |
constellation_Cygnus
|
| gptkbp:notableFor |
its bright stars
|
| gptkbp:partOf |
Milky Way galaxy
|
| gptkbp:previousName |
NGC 7092
|
| gptkbp:releaseYear |
1764
|
| gptkbp:size |
approximately 30 arcminutes
|
| gptkbp:type |
open star cluster
|
| gptkbp:visibility |
best viewed in late summer
|
| gptkbp:visitedBy |
amateur astronomers
|