Live Sky Report
What Can I See in the Sky Tonight in Sumiyoshi, Shizuoka, Japan?
New Moon moon at 0%, Venus shines at magnitude -4.4. Calculated for 34.75°, 138.25° (Asia/Tokyo).
Visible planets tonight
Venus, Jupiter, Mercury, Saturn, Mars — brightest: Venus at mag -4.4 in Virgo
🔭 Tonight's Sky Report
📍 Sumiyoshi, Shizuoka, Japan — Wednesday, August 12
Tonight's sky above Sumiyoshi, Shizuoka, Japan
Skywatchers in Sumiyoshi, Shizuoka, Japan have the same live tools professional observers use — a real ephemeris, live Kp readings from NOAA SWPC, and hourly cloud forecasts — condensed into one report on this page.
Above Sumiyoshi, Shizuoka, Japan tonight (34.75°, 138.25°), expect a new moon moon at 0% illumination. The night gives 7.4 hours of true astronomical darkness. At 34.8°, aurora needs a strong storm — roughly Kp 9 or higher — to reach Sumiyoshi, Shizuoka, Japan.
Local sky character in Sumiyoshi
Northern mid-latitudes · northern hemisphere · 8 m elevation
- The north celestial pole stands 34.8° above the horizon, so stars within 35° of it never set from here.
- About 78.5% of the whole sky rises above the horizon at some point in the year from this latitude.
- The Milky Way's core in Sagittarius culminates about 26.3° up, staying low, so a clear southern horizon matters.
- At 8 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
Sumiyoshi is small enough that local light domes are limited — on a clear, moonless night the Milky Way is realistically within reach.
Astronomy near Sumiyoshi
Real great-circle distances from Sumiyoshi, Shizuoka, Japan.
- Nobeyama Radio Observatory — observatory, 134 km away, 1350 m
Best nights this month in Sumiyoshi
Calculated for these coordinates and today's date — not a fixed list.
- 2026-08-12 — Darkest night of the coming month
The Moon is only 0% illuminated, giving the least lunar interference in the next 30 nights — the best window for the Milky Way and faint deep-sky targets from Sumiyoshi, Shizuoka, Japan.
- 2026-08-12 — Perseids peak — up to 100/hour
Radiant in Perseus. Favours the Northern Hemisphere, which includes Sumiyoshi, Shizuoka, Japan. The Moon is 2% lit on peak night, so lunar interference is none.
- 2026-08-27 — Full Moon
A 100%-lit Moon washes out faint objects, but lunar terrain along the limb is at its most striking — plan bright targets and planets instead of deep sky.
Sumiyoshi, Shizuoka, Japan stargazing questions
- What can I see in the sky tonight from Sumiyoshi, Shizuoka, Japan?
- Tonight from Sumiyoshi, Shizuoka, Japan expect a new moon Moon at 0% illumination, with these naked-eye planets above the horizon after dark: Venus, Jupiter, Mercury, Saturn, Mars. The night offers about 7.4 hours of true astronomical darkness.
- Does Sumiyoshi, Shizuoka, Japan's elevation help stargazing?
- At 8 m you are above a meaningful fraction of the atmosphere, which reduces extinction and scintillation — the reason major observatories are sited high. Nobeyama Radio Observatory sits about 134 km from Sumiyoshi, Shizuoka, Japan at 1350 m.
- What should I plan for observing near Sumiyoshi, Shizuoka, Japan?
- High sites reward targets that suffer most from atmosphere: planets at high altitude, faint nebulae, and the Milky Way, which culminates around 26.3° here. Cold and thinner air are the practical constraints, not the sky.
- How dark does it actually get in Sumiyoshi, Shizuoka, Japan tonight?
- About 7.4 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.
Nearby cities
Real great-circle distance from Sumiyoshi, Shizuoka, Japan.
More in Shizuoka
Other sky reports in the same region.
Sky tonight across Japan
Other cities in Japan with live sky reports.
Popular astronomy destinations
Aurora hubs, dark-sky sites, and observatory towns.