GoodSeeing
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Setti Fatma

31.225° N   7.678° W  ·  1434 M
72 /100
PEAK
Worth setting up — 6 hours of workable sky from 00:00.
BEST WINDOW 00:00–06:00 · ASTRO DARK 22:00–06:00 · MOON 0%
Transparency
0.76
Seeing
1.00
Cloud
5%
Moon
0%

Good tonight

Hour by hour, local to Setti Fatma. 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
07
0
4
11
16
50
45
44
47
35
72
41
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
42%
68%
83%
88%
45%
49%
50%
38%
48%
20%
5%
2%
High cloud
56%
97%
94%
28%
6%
16%
20%
39%
56%
6%
1%
0%
Transparency
0.72
0.69
0.69
0.70
0.69
0.72
0.73
0.74
0.75
0.76
0.76
0.76
Seeing
0.83
0.93
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
0%
down
down
down
down
down
down
down
down
down
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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 Clouded out · 0/100
Starting from
100
Cloud
−57
Transparency
−5
Seeing
−2
Moonlight
−0
Darkness
−36
Score
0
CLOUD 62% LOW 0% MID 42% HIGH 56% SUN 2.7° MOON 5.1° / 0% WIND 4 TEMP 24°
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 00:00–04:00 · 4H · MEAN 46

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

202200020406
HIGH CLOUD CLEARS 00:00
SET UP 23:30 · OBSERVE 00:00–07:00 · 7H · MEAN 55

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

202200020406
HIGH CLOUD CLEARS 00:00TWILIGHT BEGINS 07:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–04:00 · 4H · MEAN 43

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

202200020406
HIGH CLOUD CLEARS 00:00
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 60

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

202200020406
HIGH CLOUD CLEARS 05:00TWILIGHT BEGINS 06:00
SET UP 23:30 · OBSERVE 00:00–04:00 · 4H · MEAN 41

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

202200020406
HIGH CLOUD CLEARS 00:00
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The next week of nights

Tonight · 12 Aug
72
Good
MOON 0%
00:00–06:00
Tomorrow · 13 Aug
97
Excellent
MOON 2%
22:00–06:00
Friday · 14 Aug
86
Excellent
MOON 6%
22:00–06:00
Saturday · 15 Aug
81
Excellent
MOON 13%
01:00–02:00
Sunday · 16 Aug
84
Excellent
MOON 21%
01:00–02:00
Monday · 17 Aug
100
Excellent
MOON 30%
01:00–02:00
Tuesday · 18 Aug
92
Excellent
MOON 39%
01:00–02:00
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Nearby locations

About this forecast

Conditions for Setti Fatma, Morocco 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 →