Live Sky Report
What Can I See in the Sky Tonight in Arakawa, Tokyo, Japan?
Waxing Crescent moon at 2%, Mars shines at magnitude 1.1. Calculated for 35.74°, 139.78° (Asia/Tokyo).
Visible planets tonight
Mars, Saturn, Jupiter — brightest: Mars at mag 1.1 in Cancer
🔭 Tonight's Sky Report
📍 Arakawa, Tokyo, Japan — Sunday, October 11
Space weather observed: 7:20 PM UTC
Tonight's sky above Arakawa, Tokyo, Japan
Skywatchers in Arakawa, Tokyo, 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.
Local sky character in Arakawa
Northern mid-latitudes · northern hemisphere · 8 m elevation
- The north celestial pole stands 35.7° above the horizon, so stars within 36° of it never set from here.
- About 79.2% 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 25.3° 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.
Arakawa is a town-scale settlement, so the edge of the built-up area is often dark enough for the Milky Way on moonless nights.
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Astronomy near Arakawa
Real great-circle distances from Arakawa, Tokyo, Japan.
- Nobeyama Radio Observatory — observatory, 120 km away, 1350 m
Best nights this month in Arakawa
Calculated for these coordinates and today's date — not a fixed list.
- 2026-10-21 — Orionids peak — up to 20/hour
Radiant in Orion. Visible from both hemispheres. The Moon is 72% lit on peak night, so lunar interference is moderate.
- 2026-10-25 — 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.
- 2026-11-05 — Taurids peak — up to 5/hour
Radiant in Taurus. Favours the Northern Hemisphere, which includes Arakawa, Tokyo, Japan. The Moon is 18% lit on peak night, so lunar interference is low.
- 2026-11-08 — 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 Arakawa, Tokyo, Japan.
Arakawa, Tokyo, Japan stargazing questions
- What can I see in the sky tonight from Arakawa, Tokyo, Japan?
- Tonight from Arakawa, Tokyo, Japan expect a waxing crescent Moon at 2% illumination, with these naked-eye planets above the horizon after dark: Mars, Saturn, Jupiter. The night offers about 9.8 hours of true astronomical darkness.
- What planets are visible tonight in Arakawa, Tokyo, Japan?
- Tonight in Arakawa, Tokyo, Japan, Mars, Saturn, Jupiter are visible to the naked eye after dark, based on this location's real ephemeris for tonight.
- When does darkness start tonight in Arakawa, Tokyo, Japan?
- Astronomical darkness begins at 6:34 PM local time in Arakawa, Tokyo, Japan tonight, the moment the Sun drops more than 18° below the horizon and the sky becomes fully dark for faint-object observing.
- Can you see the aurora tonight in Arakawa, Tokyo, Japan?
- Arakawa, Tokyo, Japan is far enough from the pole that aurora only reaches overhead during a major geomagnetic storm — specifically when the planetary Kp index reaches about 9, a level reached only a handful of times per solar cycle.
- What is the stargazing light pollution level in Arakawa, Tokyo, Japan?
- Arakawa, Tokyo, Japan is a small city — typically Bortle class 4–5 (rural/suburban transition), where the Milky Way core can be glimpsed on clear, moonless nights. These are typical ranges for this population size, not a measured reading for this exact spot — use tonight's Moon phase and the best-nights list above to time a visit away from direct lighting.
- Does Arakawa, Tokyo, 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 120 km from Arakawa, Tokyo, Japan at 1350 m.
- What should I plan for observing near Arakawa, Tokyo, Japan?
- High sites reward targets that suffer most from atmosphere: planets at high altitude, faint nebulae, and the Milky Way, which culminates around 25.3° here. Cold and thinner air are the practical constraints, not the sky.
- How dark does it actually get in Arakawa, Tokyo, Japan tonight?
- About 9.8 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 Arakawa, Tokyo, Japan.
More in Tokyo
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.
🛰️ ISS Visibility
Next visible pass rises at 7:51 PM, lasting about 3 minutes.
4 more visible passes predicted in this window.
☄️ Orionids peaks in 9 days
Up to 20 meteors/hour at peak, radiating from Orion.
Full viewing guide →Related astronomy for Arakawa, Tokyo, Japan
Frequently Asked Questions
Is this just astronomy weather for Arakawa?
This page goes beyond ordinary astronomy weather -- it combines real local weather for astronomy, live space weather, and the space weather aurora connection into one live report for Arakawa, Tokyo, Japan.
What are tonight's astronomy viewing conditions for Arakawa?
The sky viewing conditions badge above reflects the real astronomy viewing conditions for Arakawa, Tokyo, Japan right now -- cloud cover, darkness, and moon interference combined, not moon phase alone. Good weather for stargazing depends on all of these together.
