Tonight's sky · local time · UTC+8

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

Taiwan · 25.03°, 121.57° · Computed 10-18 10:45 UTC+8

🛰️ Tonight's naked-eye ISS pass

appears
03:57
N 19°
Max. elevation
6°
N 19° · 03:57
disappears
03:59
NE 27°

ISS over Taipei 03:57–03:59 · north-northeast→north-northeast · max 6°

emerges from Earth's shadow · A bright, steady star crosses the sky in 3–6 minutes, no blinking. No equipment needed — visible even from a city centre.

🛰️ ISS Wiki

Tonight in brief

On Sat, October 17, 2026 the Sun sets over Taipei at 17:25; astronomical twilight ends at 18:41 and the sky is fully dark for 9.9 hours until 04:36, with sunrise at 05:53. The Moon is a first quarter (40.5% lit) and is already up at dusk, setting at 22:10 — after that the sky is moonless.

Naked-eye planets tonight: Jupiter, Mars, Saturn, Mercury. Jupiter rises in the east at 01:17 and climbs to 56° in the east by 05:30 before dawn. Mars rises in the east at 00:25 and climbs to 67° in the east by 05:30 before dawn. Saturn is already 13° up in the east at dusk, peaks at 67° in the south at 22:51, and sets in the west at 04:55. Mercury is already 9° up in the southwest at dusk, peaks at 9° in the southwest at 17:48, and sets in the west at 18:32. Uranus (binoculars/telescope) rises in the northeast at 19:38 and climbs to 86° in the south by 02:21 before dawn. Neptune (binoculars/telescope) is already 20° up in the east at dusk, peaks at 65° in the south at 22:20, and sets in the west at 04:21. Venus is too close to the Sun to be seen tonight.

The International Space Station crosses from north-northeast to north-northeast between 03:57 and 03:59, reaching 6° and shining like a bright star to the naked eye — it pops out of Earth's shadow at 03:57. Comet 161P/Hartley-IRAS (JPL mag. 15) is highest at 19:13, 72° in the south; Comet 2P/Encke (JPL mag. 17.1) is highest at 22:18, 83° 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 Taipei (latitude 25.0°). Coming up: Orionid meteor shower peak in 4 days, Comet 161P/Hartley-IRAS perihelion in 41 days, Geminid meteor shower peak in 57 days.

☀️🌙 Sun & Moon

Sunset17:25
End of astronomical twilight (fully dark)18:41
Start of astronomical twilight (dawn)04:36 (next day)
Sunrise (next morning)05:53 (next day)
Hours of full darkness9.9 h
First Quarter
Illumination 40.5%
Moonrise11:39
Moonset22:10
Next phaseFirst QuarterOct 19 00:13

🪐 Planets — visible tonight?

  • Mercury0.0Visible · evening
    Rises · direction: already up at dusk
    Sets · direction: 18:32 · W 248°
    Highest (altitude · direction · time): 9° · SW 243° · 17:48
  • Venus-4.2Not visible · too close to the Sun
    Rises · direction: —
    Sets · direction: 17:32 · W 248°
    Highest (altitude · direction · time): —
  • Mars+1.0Visible · pre-dawn
    Rises · direction: 00:25 (next day) · E 69°
    Sets · direction: until dawn
    Highest (altitude · direction · time): 67° · E 102° · 05:30 (next day)
  • Jupiter-1.9Visible · pre-dawn
    Rises · direction: 01:17 (next day) · E 73°
    Sets · direction: until dawn
    Highest (altitude · direction · time): 56° · E 101° · 05:30 (next day)
  • Saturn+0.3Visible · midnight
    Rises · direction: already up at dusk
    Sets · direction: 04:55 (next day) · W 272°
    Highest (altitude · direction · time): 67° · S 180° · 22:51
  • Uranus+5.6Visible · pre-dawn
    Rises · direction: 19:38 · NE 66°
    Sets · direction: until dawn
    Highest (altitude · direction · time): 86° · S 180° · 02:21 (next day)
  • Neptune+7.8Visible · midnight
    Rises · direction: already up at dusk
    Sets · direction: 04:21 (next day) · W 270°
    Highest (altitude · direction · time): 65° · S 180° · 22:20
  • Pluto+14.6Visible · evening
    Rises · direction: already up at dusk
    Sets · direction: 23:50 · SW 244°
    Highest (altitude · direction · time): 41° · S 180° · 18:35

Pluto is a dwarf planet at magnitude 14–15 — a large-telescope / imaging target

☄️ Comets 2P & 161P — tonight's position

CometJPL predicted mag.HighestEquipment
Comet 161P/Hartley-IRAS
RA 21.03h · Dec +6.5° · Δ 0.664 AU
15.072° · S 181° · 19:13large telescope / imaging
Comet 2P/Encke
RA 0.19h · Dec +17.9° · Δ 1.016 AU
17.183° · S 175° · 22:18large telescope / imaging

Magnitudes are JPL M1/K1 predictions and can differ from observations (COBS) by 2–3 magnitudes. Coordinates J2000.

🛰️ All ISS passes (24 h from local noon)

TimeStart (dir.)Max. elevationEnd (dir.)Visible?
12:48–12:58NW 310°40° · SW 237°SE 153°Daylight (not visible)
02:12 (next day)–02:22S 190°18° · SE 121°NE 61°In Earth's shadow (not visible)
03:57 (next day)–03:59N 19°6° · N 19°NE 27°Visible to the naked eye

ISS TLE epoch: 2026-10-17 19:43 UTC · CelesTrak

📡 Receiving passes — Meteor-M N2-4 · NOAA-20 · NOAA-21 (max. elevation ≥ 20°)

For direct reception of 137.9 MHz LRPT (Meteor) and X-band (NOAA-20/21); day or night. Dish pointing angles are in the Sky & Impact Lab → Sat Pass tab.

SatelliteTimeMax. elevationLength
NOAA-2112:25–12:4043° · E 70°15 min
NOAA-2013:21–13:3654° · W 250°15 min
Meteor-M N2-413:26–13:4025° · E 69°14 min
Meteor-M N2-415:06–15:2028° · W 258°14 min
NOAA-2100:52 (next day)–01:0737° · E 105°15 min
NOAA-2001:48 (next day)–02:0363° · NW 298°15 min
Meteor-M N2-403:31 (next day)–03:4634° · W 288°14 min

🌌 Space weather in one line

Kp 1 · Quiet · aurora possible above 64.9° geomagnetic latitudeNOAA SWPC 2026-10-17T21:00

📅 Coming up

  • in 4 days
    Oct 21
    Orionid meteor shower peak

    Dust from Halley's Comet — night of Oct 21–22, about 10–20 per hour (AMS observed rate). The Moon sets after midnight, so pre-dawn is best.

    Source: AMS Meteor Shower Calendar · Wiki

  • in 41 days
    Nov 27
    Comet 161P/Hartley-IRAS perihelion

    The Halley-type comet, back after 21.5 years, reaches its closest point to the Sun (1.28 AU). A telescope/imaging target at magnitude 10–12.

    Source: NASA JPL Small-Body Database · Wiki

  • in 57 days
    Dec 13
    Geminid meteor shower peak

    The richest shower of the year — night of Dec 13–14, with a 15%-lit Moon: good conditions.

    Source: AMS Meteor Shower Calendar

🌍 Other cities

How this is computed

Planets, Moon and Sun: astronomy-engine (VSOP87, refraction-corrected). Comets: two-body propagation of JPL SBDB elements. Satellites: CelesTrak TLE + SGP4. An ISS pass is “visible” when the Sun is at least 6° below the observer's horizon and the satellite is outside Earth's shadow (cylindrical model). A planet is “visible” when it reaches 5° altitude after civil dusk. All times are in the city's time zone; the date rolls to the next night at local noon. Recomputed every 30 minutes.