When Is M39 Visible During the Year?

See how M39 visibility changes through the year from your location. The graph shows its seasonal observing windows, while the table gives rise, transit and set times for selected dates.

M39 will remain visible until February 3, when it moves too close to the Sun and temporarily disappears from the night sky.

Best Months to See M39

Based on the amount of time M39 is above the horizon during dark or twilight hours, the strongest observing months in the next year are October 2026, October 2027, November 2026.

M39 Visibility Throughout the Year

M39 visibility on 2026-10-03

M39 Visible all night

M39 rise and set timetable

	Time	Elevation
Sunset	16:47	55°
Civil sunset	17:15	60°
Twilight start (−12°)	17:45	64°
Astronomical observing session begins	18:15	69°
M39 transit	19:51	79°
Moonrise, 56.5% illuminated	21:14	71°
Astronomical observing session ends	03:38	12°
Twilight end (−12°)	04:08	9°
Civil sunrise	04:39	6°
Sunrise	05:06	3°
M39 set	05:48
M39 rise	09:52
Moonset	12:53	19°

Track M39 position throughout the night

← 3 October 2026 →

Time
Altitude
Azimuth

Shift the map to change the time and observe M39 changing position in the night sky.

M39 Rise, Transit and Set Times by Date