Top picture: Serpens Constellation, resolved by @kestrel_skies

Open cluster · Serpens

NGC 6604

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Type

Open cluster

Constellation

Serpens

Position (J2000)

18h 18m 03s · −12° 14′ 35″

Discovered

by William Herschel in 1784

Pictures

2

Typical integration

7.7 h

Magnitude

6.5

visual

Size

9.6′

Distance

~5,500 ly

Best months

May–Jul

Catalogue data from OpenNGC by Mattia Verga, CC BY-SA 4.0. Distances, discoverers and common names from Wikidata, CC0.