When Is Coma Pinwheel (M99) Visible During the Year?

See how Coma Pinwheel (M99) 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.

Coma Pinwheel (M99) will become visible again around October 31 after moving far enough from the Sun.

Best Months to See Coma Pinwheel (M99)

Based on the amount of time Coma Pinwheel (M99) is above the horizon during dark or twilight hours, the strongest observing months in the next year are March 2027, February 2027, April 2027.

Coma Pinwheel (M99) Visibility Throughout the Year

Coma Pinwheel (M99) visibility on 2026-09-07

M99 Visible from sunset until late evening

Coma Pinwheel (M99) rise and set timetable

	Time	Elevation
Coma Pinwheel (M99) transit	12:22	67°
Moonset	14:56	49°
Sunset	17:27	19°
Civil sunset	17:55	14°
Twilight start	18:26	8°
Astronomical observing session begins	18:58	2°
Coma Pinwheel (M99) set	19:06
Moonrise, 21% illuminated	23:21	-36°
Astronomical observing session ends	03:13	-24°
Coma Pinwheel (M99) rise	05:34

Track Coma Pinwheel (M99) Position Throughout the Night

← 7 September 2026 →

Time
Altitude
Azimuth

Shift the map to change the time and observe Coma Pinwheel (M99) changing position in the night sky.

Coma Pinwheel (M99) Rise, Transit and Set Times by Date