Southern Delta Aquariids 2028: the moon at peak

Jul 30, 2028, 15:48 UTC · Calculated July 26, 2026

71% Mixed — significant moonlight for part of the night.

Peak and moon conditions

Peak (UTC)

Jul 30, 2028, 15:48 UTC

Illumination

71%

Waxing gibbous

Peak rate (ZHR)

~25/hour

Radiant

Aquarius

Active period

Jul 12 – Aug 23

Peak night by city

For each city: the local time of the peak, and how much of that night is both astronomically dark and free of moonlight.

City	Peak (local time)	Astronomical darkness	Moon-free darkness	Moonrise	Moonset	Rating
Seoul	Mon, Jul 31 00:48	6.4 h	3.4 h	14:50	00:29 (+1)	Fair
Tokyo	Mon, Jul 31 00:48	6.7 h	3.4 h	13:52	23:43	Fair
New York	Sun, Jul 30 11:48	5.9 h	3.6 h	14:55	00:23 (+1)	Fair
Los Angeles	Sun, Jul 30 08:48	6.9 h	3.7 h	14:40	00:46 (+1)	Fair
London	Sun, Jul 30 16:48	2.8 h	2.3 h	16:43	00:12 (+1)	Good
Madrid	Sun, Jul 30 17:48	6.0 h	3.0 h	17:07	02:19 (+1)	Fair
Sydney	Mon, Jul 31 01:48	10.7 h	2.9 h	—	02:29 (+1)	Poor
São Paulo	Sun, Jul 30 12:48	10.4 h	2.6 h	12:42	02:46 (+1)	Poor

Why the moon decides a meteor shower

Meteor rates quoted as ZHR assume a perfectly dark sky with the radiant overhead. Real counts fall off fast with sky brightness, and the moon is the one source of sky brightness that is completely predictable years ahead. A full moon near the peak can cut visible meteors by three quarters even under a cloudless sky. That is why the useful question is not “when is the peak” but “where is the moon at the peak” — which is what this page computes.

Other years

Other meteor showers

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