Live Sky Report
What Can I See in the Sky Tonight in Surabaya, East Java, Indonesia?
Waxing Gibbous moon at 62%, Saturn shines at magnitude 0.3. Calculated for -7.25°, 112.75° (Asia/Jakarta).
Visible planets tonight
Saturn, Mars, Jupiter, Mercury — brightest: Saturn at mag 0.3 in Cetus
🔭 Tonight's Sky Report
📍 Surabaya, East Java, Indonesia — Monday, October 19
Space weather observed: 6:00 PM UTC
Tonight's sky above Surabaya, East Java, Indonesia
Above Surabaya, East Java, Indonesia tonight, the sky is a live system: the Moon's illumination, which planets have cleared the horizon, and whether Earth's magnetosphere is quiet or churning all change hour by hour.
Local sky character in Surabaya
Tropical / equatorial latitudes · southern hemisphere · 8 m elevation
- The south celestial pole stands 7.2° above the horizon, so stars within 7° of it never set from here.
- About 56.3% 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 68.2° up, clearing the horizon haze comfortably.
- The Large Magellanic Cloud only reaches about 27.5° altitude, so it is a low, seasonal target rather than a year-round one.
- At 8 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
With a population above one million, Surabaya produces significant sky glow: expect the Moon, planets and bright stars from the centre, and travel outward for the Milky Way.
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Best nights this month in Surabaya
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.
- 2026-11-08 — 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 Surabaya, East Java, Indonesia.
- 2026-11-17 — Leonids peak — up to 15/hour
Radiant in Leo. Visible from both hemispheres. The Moon is 45% lit on peak night, so lunar interference is moderate.
Surabaya, East Java, Indonesia stargazing questions
- What can I see in the sky tonight from Surabaya, East Java, Indonesia?
- Tonight from Surabaya, East Java, Indonesia expect a waxing gibbous Moon at 62% illumination, with these naked-eye planets above the horizon after dark: Saturn, Mars, Jupiter, Mercury. The night offers about 9.3 hours of true astronomical darkness.
- What planets are visible tonight in Surabaya, East Java, Indonesia?
- Tonight in Surabaya, East Java, Indonesia, Saturn, Mars, Jupiter, Mercury are visible to the naked eye after dark, based on this location's real ephemeris for tonight.
- When does darkness start tonight in Surabaya, East Java, Indonesia?
- Astronomical darkness begins at 6:33 PM local time in Surabaya, East Java, Indonesia 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 Surabaya, East Java, Indonesia?
- Surabaya, East Java, Indonesia 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 Surabaya, East Java, Indonesia?
- Surabaya, East Java, Indonesia is a large metropolitan area — typically Bortle class 7–9 (bright, inner-city sky), where only the Moon, planets, and the brightest stars are visible. 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.
- Can I see both northern and southern constellations from Surabaya, East Java, Indonesia?
- Yes — this is the real advantage of an equatorial location. At 7.2° S, about 56.3% of the entire celestial sphere rises at some point in the year, so Polaris-side constellations and the Southern Cross region are both reachable across the seasons.
- How good is the Milky Way from Surabaya, East Java, Indonesia?
- The Galactic Centre culminates around 68.2° above the horizon from here, high enough to clear most horizon haze. Local cloud and humidity, not geometry, are usually the limiting factor at tropical latitudes.
- Are there seasons for stargazing in Surabaya, East Java, Indonesia?
- Night length barely changes at this latitude — twilight is short and the Sun sets steeply, so darkness arrives quickly all year. What changes is which part of the sky is on view after sunset, and, in monsoon-affected regions, how often the sky is clear at all.
- How dark does it actually get in Surabaya, East Java, Indonesia tonight?
- About 9.3 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 Surabaya, East Java, Indonesia.
More in East Java
Other sky reports in the same region.
Sky tonight across Indonesia
Other cities in Indonesia with live sky reports.
- Sky tonight in Mojokerto, East Java42 km
- Sky tonight in Soko, East Java44 km
- Sky tonight in Pandaan, East Java45 km
- Sky tonight in Pasuruan, East Java47 km
- Sky tonight in Sampang, East Java54 km
- Sky tonight in Mojoagung, East Java57 km
- Sky tonight in Paciran, East Java59 km
- Sky tonight in Lawang, East Java65 km
Popular astronomy destinations
Aurora hubs, dark-sky sites, and observatory towns.
☄️ Orionids peaks in 1 day
Up to 20 meteors/hour at peak, radiating from Orion.
Full viewing guide →Related astronomy for Surabaya, East Java, Indonesia
Frequently Asked Questions
Is this just astronomy weather for Surabaya?
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 Surabaya, East Java, Indonesia.
What are tonight's astronomy viewing conditions for Surabaya?
The sky viewing conditions badge above reflects the real astronomy viewing conditions for Surabaya, East Java, Indonesia right now -- cloud cover, darkness, and moon interference combined, not moon phase alone. Good weather for stargazing depends on all of these together.