Messier 39

70%  resolution (8.2MB)

Object identification (8.2MB)

Object data of M39

Object type: Open star cluster (III 2 m)
Size: 29'
Magnitude: 4.6mag
Constellation: Cyg
Distance: 1,000 Ly
Notes: Messier 39 or M39 is an open cluster of stars in the constellation of Cygnus.

To the southeast is the dark nebula LDN 1012.

Exposure data

Date: 2022-10-04 until 2022-10-30 (5 nights)
Location: Nussbach / Austria (400m)
Telescope: TEC APO 200 FL with TEC flattener-reducer 0.9x (f=1490mm)
Camera: Nikon Z6 (ISO 400)
Mount: ASA DDM85
Exposure time: 46x6min
Exposure time total: 4h 36min