Cluster

M39

M39 · NGC 7092 · MWSC 3521

Captures

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Object data

Designation: M39
Also known as: NGC 7092, MWSC 3521
Type: Cluster
Constellation: Cygnus
RA (J2000): 21h 31m 48s
Dec (J2000): +48° 26′ 17″
Magnitude: 4.6
Apparent size: 19.5′
Catalogue: Messier
Reference: Wikipedia

Catalogue values from OpenNGC (CC-BY-SA-4.0).

Best months to observe

From 51.5°N: best September, peaking at 87° at 22:00. Circumpolar - never sets.

January: 21 degrees at 22:00
February: 12 degrees at 22:00
March: 10 degrees at 22:00
April: 14 degrees at 22:00
May: 23 degrees at 22:00
June: 37 degrees at 22:00
July: 53 degrees at 22:00
August: 72 degrees at 22:00
September: 87 degrees at 22:00
October: 69 degrees at 22:00
November: 51 degrees at 22:00
December: 35 degrees at 22:00

Your latitude

Degrees north, negative for south. Recomputed in your browser and remembered on this device.

Altitude at 22:00 local time on the 15th of each month. Twilight, moon and weather are your problem.