GoodSeeing
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Ad Douiem

14.001° N   32.312° E  ·  385 M
88 /100
PEAK
A genuinely good night — 9 hours of clear, dark sky from 20:00.
BEST WINDOW 20:00–05:00 · ASTRO DARK 20:00–05:00 · MOON 0%
Transparency
0.98
Seeing
1.00
Cloud
11%
Moon
0%

Excellent tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
20
21
22
23
00
01
02
03
04
05
06
50
59
74
75
69
81
88
88
84
25
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
2%
2%
6%
12%
15%
0%
0%
0%
0%
0%
0%
High cloud
89%
66%
26%
18%
27%
25%
12%
11%
17%
14%
23%
Transparency
0.98
0.87
0.82
0.85
0.84
0.84
0.85
0.84
0.86
0.86
0.87
Seeing
1.00
0.99
0.92
0.98
0.99
1.00
1.00
0.98
0.94
0.93
0.86
Moon clear
down
down
down
down
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
20 Fair · 50/100
Starting from
100
Cloud
−50
Transparency
−0
Seeing
−0
Moonlight
−0
Darkness
−0
Score
50
CLOUD 89% LOW 0% MID 2% HIGH 89% SUN -24.8° MOON -23.0° / 0% WIND 1 TEMP 32°
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 19:30 · OBSERVE 20:00–05:00 · 9H · MEAN 73

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

202200020406
TWILIGHT BEGINS 05:00
SET UP 19:30 · OBSERVE 20:00–06:00 · 10H · MEAN 74

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

202200020406
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 19:30 · OBSERVE 20:00–05:00 · 9H · MEAN 68

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

202200020406
TWILIGHT BEGINS 05:00
SET UP 20:30 · OBSERVE 21:00–05:00 · 8H · MEAN 64

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

202200020406
HIGH CLOUD CLEARS 21:00TWILIGHT BEGINS 05:00
SET UP 19:30 · OBSERVE 20:00–05:00 · 9H · MEAN 70

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

202200020406
TWILIGHT BEGINS 05:00
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The next week of nights

Tonight · 12 Aug
88
Excellent
MOON 0%
20:00–05:00
Tomorrow · 13 Aug
75
Excellent
MOON 2%
22:00–05:00
Friday · 14 Aug
83
Excellent
MOON 6%
21:00–03:00
Saturday · 15 Aug
54
Fair
MOON 13%
20:00–21:00
Sunday · 16 Aug
67
Good
MOON 21%
20:00–21:00
Monday · 17 Aug
83
Excellent
MOON 30%
20:00–21:00
Tuesday · 18 Aug
47
Fair
MOON 39%
20:00–21:00
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Nearby locations

About this forecast

Conditions for Ad Douiem, Sudan 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 →