GoodSeeing
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Muling

44.916° N   130.517° E  ·  259 M
39 /100
PEAK
Marginal, but there is a 1 hour gap from 01:00.
BEST WINDOW 01:00–02:00 · ASTRO DARK 01:00–03:00 · MOON 0%
Transparency
0.30
Seeing
0.87
Cloud
76%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
01
02
03
04
39
30
12
0
BEST WINDOW
Low cloud
4%
19%
33%
32%
Mid cloud
0%
0%
0%
0%
High cloud
74%
83%
96%
81%
Transparency
0.30
0.28
0.26
0.25
Seeing
0.81
0.82
0.87
0.92
Moon clear
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
01 Fair · 39/100
Starting from
100
Cloud
−43
Transparency
−16
Seeing
−2
Moonlight
−0
Darkness
−0
Score
39
CLOUD 76% LOW 4% MID 0% HIGH 74% SUN -26.2° MOON -25.7° / 0% WIND 4 TEMP 20°
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 00:30 · OBSERVE 01:00–02:00 · 1H · MEAN 37

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

0103
SET UP 00:30 · OBSERVE 01:00–02:00 · 1H · MEAN 43

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

0103
MOONLIGHT IGNORED FOR THIS TARGET
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

0103
CLOUD NEVER DROPS BELOW 76%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

0103
CLOUD NEVER DROPS BELOW 76%
SET UP 00:30 · OBSERVE 01:00–02:00 · 1H · MEAN 35

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

0103
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The next week of nights

Tonight · 12 Aug
39
Fair
MOON 0%
01:00–02:00
Tomorrow · 13 Aug
26
Poor
MOON 1%
Friday · 14 Aug
15
Poor
MOON 5%
Saturday · 15 Aug
0
Clouded out
MOON 10%
Sunday · 16 Aug
11
Clouded out
MOON 19%
Monday · 17 Aug
24
Poor
MOON 28%
Tuesday · 18 Aug
34
Poor
MOON 37%
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Nearby locations

About this forecast

Conditions for Muling, 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 →