Southern delta-Aquariids from Singapore in 2026

Not worth a late night

Southern delta-Aquariids: not worth a late night here

Even against the sky actually measured here, the Southern delta-Aquariids would only manage about 0 meteors an hour from Singapore: the radiant tops out at 72° and the Moon is 96% lit. That is a low return for a night outdoors.

Maximum (local)
21:23 · 31 July 2026
Night of
31 July 2026
Best window
23:00–02:00
Peak rate
0.2/h
Radiant (best)
72.5° S
Moon
96% lit
Cloud cover
unavailable

Next worthwhile night here: Geminids on 14 December 2026 — 11.8 meteors an hour, 136 days after this one.

Local to Singapore

Sunset
19:16
Astronomical dusk
20:28
Astronomical dawn
05:53
Sunrise
07:05
Dark hours
9 h 25 min
Radiant culminates
03:12 · 72.8°
Solar midnight
01:11
Latitude
1.3°N

Rates are computed for Singapore's own measured sky brightness, 17.4 mag/arcsec² — equivalent to Bortle 9 skies. Derived from satellite night-lights data; the method is published.

Southern delta-Aquariids from Singapore: the short answer

Marginal from Singapore. Maximum 21:23 on 31 July 2026; the radiant reaches 72.8° at 03:12 and the rate for this city's measured sky tops out at 0.2 an hour with the Moon 96% lit.

That ranks it 11th of twelve from Singapore this year, behind the Geminids (11.8/h) and the Perseids (6.8/h).

The radiant track over this city

The radiant rises at 21:14 bearing ESE, culminates 72.8° up at 03:12 towards south (180°), and sets at 09:11. It lies inside Aquarius. The rate scales with the sine of that altitude, so 72.8° buys you 96% of a zenith radiant.

When it gets dark here

Singapore loses the Sun at 19:16 and gets it back at 07:05. True astronomical darkness — the only part that counts for faint meteors — runs 20:28 to 05:53, 9 h 25 min out of 11 h 50 min of night.

Local solar midnight, the true middle of the night, falls at 01:11 here rather than at 00:00: Asia/Singapore runs 65 minutes ahead of mean solar time at 103.85°E. That offset is why the best hour on this page is not the hour you would guess from the clock.

What the Moon does here

Moonlight is the limiting factor on this night from Singapore. The Moon is 96% lit and only 1 of 11 sampled hours are moon-free. Moonrise 20:38. Moonset 08:57. At the best hour it stands 32.9° above the horizon, 9° from the radiant, pulling the limiting magnitude down to 2.96.

Why 0 an hour and not 25

Converting ZHR 25 into something useful for Singapore means multiplying by sin(72.5°) and dividing by 3.2 raised to (6.5 − 2.96). That lands at 0.2 meteors an hour, from fast 40.6 km/s entries.

Hour by hour the modelled rate runs from 0.0 at 20:00 (radiant -17.9°) to 0.1 at 06:00 (radiant 45.3°), peaking at 0.2. That spread across 11 hours is why a "what time" answer beats a "how many" answer.

The stream comes from Comet 96P/Machholz and is listed as active 12 July to 23 August, so 31 July 2026 is the best night from Singapore rather than the only one.

Watching from around Singapore

Singapore is the 49th largest of the 300 cities covered here, with a population of 5.64 million at 23 m above sea level. The nearest other cities on the site are Kuala Lumpur (316 km NW), Palembang (478 km SSE), Medan (630 km WNW) — close enough that the radiant altitudes barely change, far enough that sunset and moonrise do.

What this page does not know

Rates on this page are computed against this city's own measured sky brightness, derived from satellite night-lights data. That is a calculated brightness for the point directly overhead, not a survey of your street: a park on the edge of town and a lit car park in the centre share the same figure here and will not look the same. It is also zenith-only, while the Bortle scale describes the whole sky from horizon to horizon.

Cloud cover is a forecast, not a constant, so it is resolved when you load the tonight card and is deliberately absent from this prerendered page — the hourly table shows "unavailable" rather than assuming clear skies. Meteor outbursts, local terrain and building horizons are not modelled.

A single observer with an unobstructed horizon typically records 30–50% below the ideal-sky figure. Give your eyes twenty minutes to adapt, keep bright screens away, look about halfway up the sky rather than straight at the radiant, and count for a full hour before judging a shower.

Expected rate through the night

0 3 5 20:00 22:00 00:00 02:00 04:00 06:00

Meteors per hour for one observer under this city's measured sky. Local time, Asia/Singapore. Cloud cover is not included — it is unknown at build time.

Hour by hour from Singapore

Hourly radiant altitude, Moon position, limiting magnitude and expected rate for Southern delta-Aquariids from Singapore.
Local Radiant Moon alt Moon lit Sun alt Cloud Lim. mag Meteors/h
20:00 -17.9° -10.0° 97% -11.2° n/a 1.74 0.0
21:00 -3.5° 4.3° 96% -25.3° n/a 3.86 0.0
22:00 10.9° 18.6° 96% -39.2° n/a 3.39 0.1
23:00 25.3° 32.9° 96% -52.4° n/a 2.96 0.2
00:00 39.4° 47.1° 96% -63.9° n/a 2.59 0.2
01:00 52.9° 61.0° 96% -70.4° n/a 2.33 0.2
02:00 65.1° 73.5° 96% -67.1° n/a 2.17 0.1
03:00 72.5° 78.3° 95% -56.9° n/a 2.13 0.1
04:00 69.2° 69.1° 95% -44.1° n/a 2.22 0.2
05:00 58.4° 55.8° 95% -30.5° n/a 2.43 0.2
06:00 45.3° 41.7° 95% -16.4° n/a 2.38 0.1

"Cloud: n/a" means the forecast is not resolved on this prerendered page, not that the sky is clear.