🌙 Tonight's Sky in Incheon — Sat, October 17, 2026

On Sat, October 17, 2026 the Sun sets over Incheon at 17:53; astronomical twilight ends at 19:20 and the sky is fully dark for 9.9 hours until 05:16, with sunrise at 06:43. The Moon is a first quarter (40.4% lit) and is already up at dusk, setting at 22:11 — after that the sky is moonless.

Naked-eye planets tonight: Jupiter, Mars, Saturn. Jupiter rises in the east at 01:38 and climbs to 53° in the southeast by 06:17 before dawn. Mars rises in the northeast at 00:40 and climbs to 63° in the southeast by 06:17 before dawn. Saturn is already 11° up in the east at dusk, peaks at 54° in the south at 23:30, and sets in the west at 05:37. Uranus (binoculars/telescope) rises in the northeast at 19:50 and climbs to 74° in the south by 03:01 before dawn. Neptune (binoculars/telescope) is already 16° up in the east at dusk, peaks at 52° in the south at 22:59, and sets in the west at 05:00. Venus is too close to the Sun to be seen tonight. Mercury stays too low on the horizon.

The International Space Station crosses from north-northeast to northeast between 04:57 and 05:02, reaching 57° and shining like a bright star to the naked eye — it pops out of Earth's shadow at 04:57. Comet 161P/Hartley-IRAS (JPL mag. 15) is highest at 19:50, 59° in the south; Comet 2P/Encke (JPL mag. 17.1) is highest at 23:00, 71° in the south — both remain telescope/imaging targets. Kp is 1 (quiet), so aurora is possible only above about 64.9° geomagnetic latitude — not expected from Incheon (latitude 37.5°). Coming up: Orionid meteor shower peak in 4 days, Comet 161P/Hartley-IRAS perihelion in 41 days, Geminid meteor shower peak in 57 days.