Stargazing in Koga tonight

Japan · 36.18°, 139.72°

Stargazing verdict · tonight

Fair

Fair — stars visible, but not the best conditions.

›A bright waning gibbous (93% lit) will wash out fainter stars.
›About 9 hours of true darkness to work with.

Your sky map — scrub through time

A live map of the sky above Koga: the Moon, planets, bright stars and constellations, exactly where they are. Drag the sliders to move through the night — or forward and back by days — and watch everything shift.

The sky over Koga

Tue 29 Sept, 22:00 · looking up — N at top, E to the left

Day

Time of night22:00

Drag the sliders to travel through time — watch the Moon, planets and constellations rise, set and shift. Positions are computed live for Koga.

Tonight's sky in Koga

🌖 Moon

Waning Gibbous

93% lit

🌑 Darkness

18:53–04:09

9h of dark

🌇 Sun

sets 17:28

rises 05:35

🌙 Moon rise/set

up 18:36

down 09:19

Planets visible tonight

♂ Mars

Best early hours · toward the E · 46° up

♃ Jupiter

Best early hours · toward the E · 28° up

♄ Saturn

Best most of the night · toward the S · 56° up

Best nights to stargaze — next two weeks

Ranked by how dark the sky will be (less Moon = better). Pair with a clear-sky forecast on the night.

Tue 29 Sept

29 Sept

89% moon

Wed 30 Sept

30 Sept

81% moon

Thu 1 Oct

1 Oct

72% moon

Fri 2 Oct

2 Oct

61% moon

Sat 3 Oct

3 Oct

50% moon

Sun 4 Oct

4 Oct

38% moon

Mon 5 Oct

5 Oct

28% moon

Tue 6 Oct

6 Oct

18% moon

Wed 7 Oct

7 Oct

10% moon

Thu 8 Oct

8 Oct

5% moon

Fri 9 Oct

9 Oct

1% moon

Sat 10 Oct

10 Oct

0% moon

Sun 11 Oct

11 Oct

1% moon

Mon 12 Oct

12 Oct

4% moon

Upcoming sky events from Koga

4 October

Saturn at opposition

Saturn reaches opposition on 4 October — directly opposite the Sun, so it rises at sunset, sets at sunrise and is at its biggest and brightest of the year. The best night to catch the rings through even a small telescope.

14 December

Geminid meteor shower

Widely considered the best shower of the year: slow, bright, often colourful meteors at up to ~150 per hour under dark skies. In 2026 the Moon is only a young crescent at the 13–14 December peak, so conditions are excellent.

21 October · lesser-known

Orionid meteor shower

Fast, faint meteors — debris from Halley's Comet — peaking around 21 October at ~20 per hour. A quieter, connoisseur's shower; moonlight hampers the 2026 peak, so aim for the darkest hours.

17 November · lesser-known

Leonid meteor shower

The Leonids peak around 17 November at ~15 fast meteors an hour. Famous for rare, spectacular storms every ~33 years; 2026 is a normal year, but still a pleasant pre-dawn watch.

23 December

December supermoon

The final and closest supermoon of 2026 on 23 December — a full Moon near its closest approach to Earth, appearing slightly larger and noticeably brighter. Lovely to the eye, especially rising near the horizon.

Moon phase for Koga →All sky events

Stargazing in Koga — FAQ

Is tonight good for stargazing in Koga?

Fair — stars visible, but not the best conditions. A bright waning gibbous (93% lit) will wash out fainter stars. Check the live cloud forecast above, which updates through the day.

What planets are visible from Koga tonight?

Tonight you can spot Mars, Jupiter, Saturn above the horizon from Koga, conditions permitting.

When is the best night to stargaze in Koga soon?

The darkest upcoming night is around Sat 10 Oct, when the Moon is only 0% lit.

Times are local to Koga (Asia/Tokyo). Astronomical data is computed from established models; the cloud forecast is live from Open-Meteo and refreshes through the day. Always confirm with a live forecast before travelling to a dark-sky site.