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Qingyuan

23.700° N   113.033° E  ·  11 M
53 /100
PEAK
Marginal, but there is a 2 hours gap from 03:00.
BEST WINDOW 03:00–05:00 · ASTRO DARK 00:00–05:00 · MOON 0%
Transparency
0.41
Seeing
1.00
Cloud
39%
Moon
0%

Fair tonight

Hour by hour, local to Qingyuan. Colour encodes the score and nothing else; every other measurement is luminance.

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
00
01
02
03
04
05
06
38
30
34
53
44
31
0
BEST WINDOW
Low cloud
10%
9%
6%
1%
9%
5%
2%
Mid cloud
9%
17%
22%
14%
23%
32%
4%
High cloud
69%
86%
71%
29%
24%
12%
9%
Transparency
0.41
0.38
0.35
0.31
0.29
0.25
0.23
Seeing
0.94
0.95
0.96
1.00
1.00
1.00
1.00
Moon clear
down
down
down
down
down
down
down
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Why this hour scored what it did
00 Fair · 38/100
Starting from
100
Cloud
−49
Transparency
−12
Seeing
−1
Moonlight
−0
Darkness
−0
Score
38
CLOUD 73% LOW 10% MID 9% HIGH 69% SUN -50.5° MOON -49.2° / 0% WIND 3 TEMP 29°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

What are you doing tonight?

The same forecast, weighted for the target. Planetary work barely cares about moonlight; long exposures die on high cloud a visual observer would never notice.

SET UP 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 47

Darkness and moonlight dominate. Faint fuzzies need a genuinely dark sky more than they need steady air.

00020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 05:00
SET UP 01:30 · OBSERVE 02:00–06:00 · 4H · MEAN 51

Seeing is everything and moonlight is irrelevant. Bright targets punch through twilight, so darkness barely counts.

00020406
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 42

Tolerates soft seeing, but high cloud wrecks a wide frame and moonlight raises the background everywhere.

00020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 05:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

Needs conditions to hold still for hours. Sustained transparency matters more than any single good hour.

00020406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 47

Naked eye, whole sky. Total cloud and moonlight are the only things that count.

00020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 05:00
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The next week of nights

Tonight · 12 Aug
53
Fair
MOON 0%
03:00–05:00
Tomorrow · 13 Aug
49
Fair
MOON 1%
21:00–00:00
Friday · 14 Aug
32
Poor
MOON 5%
Saturday · 15 Aug
23
Poor
MOON 10%
Sunday · 16 Aug
26
Poor
MOON 19%
Monday · 17 Aug
18
Poor
MOON 28%
Tuesday · 18 Aug
22
Poor
MOON 37%
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About this forecast

Conditions for Qingyuan, China are computed from the MET Norway forecast model for these exact coordinates, combined with sun and moon positions we calculate directly. The score weighs cloud cover by layer, atmospheric transparency, estimated seeing, moonlight and how dark the sky actually gets. Read the full method →