Tonight’s sky

When it gets dark, what the moon’s doing, and which planets are up — for planning a night under the stars.

Next 7 nights — tap a night to see it

  1. Tonight4 Aug70%
  2. Wed5 Aug59%
  3. Thu6 Aug48%
  4. Fri7 Aug37%
  5. Sat8 Aug26%
  6. Sun9 Aug16%
  7. Mon10 Aug8%

Darker nights (lower %) are best for galaxies and nebulae. Tap any night to see its darkness, moon, planets and ISS passes.

LondonGMT

Wednesday 16 December
all times GMT (local)

Waxing crescent · 45% lit

A 45%-lit moon is up for some of the dark window — deep-sky objects still show, brightest targets best.

Rises 11:55·sets 00:55

Darkness tonight

  • Sunset15:51
  • Civil twilight ends16:31
  • Nautical twilight ends17:15
  • Fully dark — a session can start17:55
  • First light — dark ends05:56
  • Nautical twilight (dawn)06:37
  • Civil twilight (dawn)07:20
  • Sunrise08:01

Planets tonight

  • JupiterHigh in the small hours (around 04:11) — in the south.rises 21:03sets 11:27highest 04:11 (52°)
  • MarsHigh just before dawn (around 04:56) — in the south.rises 21:54sets 11:58highest 04:56 (50°)
  • SaturnWell-placed in the evening twilight (around 18:55) — in the south.rises 12:45sets 00:58highest 18:55 (39°)
  • VenusStill climbing when the sky brightens at 05:56 — reaches 16° in the southeast.rises 03:47sets 13:51highest 05:56 (16°)

ISS passes (naked eye)

ISS pass times are unavailable right now — The ISS orbit data is out of date — check back later.

Sun & Moon path (altitude over 24h)

+60°+30°-30°-60°000306091215182124
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The shaded band is the genuinely-dark part of the night. A target is easy to observe when its curve is high (above ~30°) during that band; low on the horizon means haze and rooftops. Times are GMT (local).

Coming up

  • Quadrantids meteor showerSun 3 JanuaryPeak night. Sharp peak, up to ~40/hour — brief but rich.in 18 days
  • Annular solar eclipseSat 6 FebruaryOnly visible along a narrow track on Earth — check whether it passes near you (never look at the Sun unprotected).in 7 weeks
  • Penumbral lunar eclipseSat 20 FebruaryA shadow crosses part of the Moon — visible wherever the Moon is up at the time.in 9 weeks

Meteor showers are best on a moonless night away from town lights — use the moon panel above to judge. Eclipse and shower dates are worldwide; whether it’s above your horizon depends on your location and time.

Every time is shown in London’s own local clock, with daylight saving applied for the date. “—” means the event doesn’t occur (for example, some nights the moon doesn’t rise); “stays light” means the sky never reaches that stage (northern summer). ISS pass times use live orbital data and show only passes visible to the naked eye (bright enough, in a dark-enough sky). Planet visibility is judged during the genuinely-dark window, not by a daytime high point — so a planet only appears here when you could actually see it.