Stargazing guide
Stargazing in Rengasdengklok, West Java, Indonesia
Rengasdengklok, West Java, Indonesia has an estimated Bortle 4–5 sky (small city). The Milky Way core is highest after dark in April, at about 67°.
How dark the sky is around Rengasdengklok, West Java, Indonesia, the nearest certified dark-sky places, when the Milky Way core is visible, and the next dark New Moon. Calculated for -6.16°, 107.30°.
Estimated sky glow
Milky Way core
Next New Moon
Dark-sky rating for Rengasdengklok
Rengasdengklok, West Java, Indonesia is a small city (population about 201,463). A place this size typically has a rural to suburban transition: the Milky Way core can be glimpsed on clear, moonless nights. That is an estimate of Bortle class 4–5 from population, not a measurement: the real value depends on the exact spot you observe from.
For a measured reading at any point, open the live Dark Sky map.
Nearest dark-sky places and observatories
- Bosscha Observatory · observatory · about 82 km away
Milky Way season in Rengasdengklok
The bright core of the Milky Way climbs high above the horizon haze. It climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October, peaking in April at about 67°.
- The south celestial pole stands 6.2° above the horizon, so stars within 6° of it never set from here.
- About 55.4% 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 67.2° up, clearing the horizon haze comfortably.
- The Large Magellanic Cloud only reaches about 26.5° altitude, so it is a low, seasonal target rather than a year-round one.
- At 10 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
Tonight and aurora
As of October 15, 2026 (UTC) the Moon is a Waxing Crescent at 21% illumination. Aurora at 6.2° latitude generally needs about Kp 9.0.
Nearby places
Stargazing in Rengasdengklok: common questions
Is Rengasdengklok a good place for stargazing?
Rengasdengklok, West Java, Indonesia is a small city, so its typical sky is rural to suburban transition: the Milky Way core can be glimpsed on clear, moonless nights (an estimate of Bortle 4–5 from population, not a measurement). The nearest certified dark-sky place or observatory in our registry is Bosscha Observatory, about 82 km away.
When can you see the Milky Way from Rengasdengklok?
From Rengasdengklok, West Java, Indonesia (-6.16°, 107.30°) the Milky Way's bright core climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October. It peaks in April, reaching about 67°. Moonlight, cloud and city lights still decide what you actually see.
What is the best night this month for stargazing near Rengasdengklok?
The darkest nights fall around the New Moon. As of 2026-10-15 the Moon is a Waxing Crescent at 21% illumination, and the next New Moon is November 9, 2026 (UTC). Pair it with a clear forecast and a site away from town lights.