GoodSeeing
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Mugala

36.855° N   81.664° E  ·  1410 M
64 /100
PEAK
Worth setting up — 5 hours of workable sky from 00:00.
BEST WINDOW 00:00–05:00 · ASTRO DARK 00:00–05:00 · MOON 0%
Transparency
1.00
Seeing
0.94
Cloud
23%
Moon
0%

Good tonight

Hour by hour, local to Mugala. 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
49
61
55
64
52
5
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
Mid cloud
20%
20%
27%
16%
31%
88%
99%
High cloud
69%
41%
26%
10%
14%
23%
37%
Transparency
1.00
0.99
0.67
0.60
0.50
0.73
0.78
Seeing
0.80
0.85
0.87
0.76
0.89
0.94
0.89
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 · 49/100
Starting from
100
Cloud
−49
Transparency
−0
Seeing
−3
Moonlight
−0
Darkness
−0
Score
49
CLOUD 73% LOW 0% MID 20% HIGH 69% SUN -37.4° MOON -36.4° / 0% WIND 4 TEMP 26°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.
Tonight's limiting factor
What the GoodSeeing score actually measures

One number from 0 to 100 per hour, combining cloud, transparency, seeing, moonlight and darkness. Cloud gates everything else — no amount of steady, dark air rescues an overcast sky.

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 23:30 · OBSERVE 00:00–05:00 · 5H · MEAN 56

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

00020406
CLOUD RETURNS 05:00
SET UP 23:30 · OBSERVE 00:00–05:00 · 5H · MEAN 56

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

00020406
CLOUD RETURNS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–05:00 · 5H · MEAN 52

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

00020406
CLOUD RETURNS 05:00
SET UP 00:30 · OBSERVE 01:00–05:00 · 4H · MEAN 44

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

00020406
HIGH CLOUD CLEARS 01:00CLOUD RETURNS 05:00
SET UP 23:30 · OBSERVE 00:00–05:00 · 5H · MEAN 53

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

00020406
CLOUD RETURNS 05:00
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The next week of nights

Tonight · 12 Aug
64
Good
MOON 0%
00:00–05:00
Tomorrow · 13 Aug
75
Excellent
MOON 2%
01:00–05:00
Friday · 14 Aug
48
Fair
MOON 6%
01:00–02:00
Saturday · 15 Aug
7
Clouded out
MOON 12%
Sunday · 16 Aug
100
Excellent
MOON 19%
00:00–01:00
Monday · 17 Aug
100
Excellent
MOON 28%
00:00–01:00
Tuesday · 18 Aug
100
Excellent
MOON 37%
00:00–01:00
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Nearby locations

About this forecast

Conditions for Mugala, 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 →