Quadrantids from Xi’an in 2026

Quadrantids from Xi’an: the short answer

Maximum for the Quadrantids in 2026 is 05:12 Xi’an time on 4 January 2026. From 34.3°N the radiant gets to 74.6° at 09:09, the Moon is 100% lit, and this city's measured-sky ceiling is 9.6 meteors an hour.

That ranks it 3rd of twelve from Xi’an this year, behind the Geminids (22.2/h) and the Perseids (17.0/h).

The radiant track over this city

The radiant rises at 23:35 bearing NNE, culminates 74.6° up at 09:09 towards north (360°), and sets at 18:45. It lies inside Bootes. The rate scales with the sine of that altitude, so 74.6° buys you 96% of a zenith radiant.

When it gets dark here

Sunset over Xi’an is 17:46, civil twilight ends 18:14, and the sky reaches astronomical darkness — Sun 18° down — at 19:16. It holds until 06:21, with sunrise at 07:50: 11 h 5 min of real darkness inside 14 h 4 min of night.

Local solar midnight, the true middle of the night, falls at 00:48 here rather than at 00:00: Asia/Shanghai runs 44 minutes ahead of mean solar time at 108.93°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 Xi’an. The Moon is 100% lit and only 0 of 13 sampled hours are moon-free. Moonrise 17:28. Moonset 08:42. At the best hour it stands 29.3° above the horizon, 87° from the radiant, pulling the limiting magnitude down to 3.53.

Why 10 an hour and not 110

Zenithal hourly rate 110, population index 2.1, entry speed 40.4 km/s — fast. Those are stream constants. What changes from city to city is the geometry: at 61.7° of radiant altitude and limiting magnitude 3.53, Xi’an converts that ZHR into about 9.6 meteors an hour.

Hour by hour the modelled rate runs from 0.0 at 19:00 (radiant -1.1°) to 2.3 at 07:00 (radiant 61.7°), peaking at 9.6. That spread across 13 hours is why a "what time" answer beats a "how many" answer.

The stream comes from Minor planet 2003 EH1 and Comet C/1490 Y1 and is listed as active 28 December to 12 January, so 4 January 2026 is the best night from Xi’an rather than the only one.

Watching from around Xi’an

Xi’an, Shaanxi is the 24th largest of the 300 cities covered here, with a population of 9.60 million at 416 m above sea level. The nearest other cities on the site are Baoji (156 km W), Qingyang (199 km NW), Shiyan (248 km SE) — 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.