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Fada

17.192° N   21.581° E  ·  562 M
71 /100
PEAK
Worth setting up — 1 hour of workable sky from 20:00.
BEST WINDOW 20:00–21:00 · ASTRO DARK 20:00–05:00 · MOON 0%
Transparency
1.00
Seeing
1.00
Cloud
32%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
19
20
21
22
23
00
01
02
03
04
05
13
71
34
36
20
9
10
17
21
23
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
89%
31%
73%
70%
89%
100%
99%
92%
88%
85%
91%
High cloud
3%
2%
0%
0%
1%
12%
4%
0%
0%
0%
0%
Transparency
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.98
0.99
0.98
0.97
Seeing
0.94
0.94
0.97
0.95
0.99
0.96
1.00
1.00
1.00
0.93
0.92
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
19 Clouded out · 13/100
Starting from
100
Cloud
−81
Transparency
−0
Seeing
−0
Moonlight
−0
Darkness
−6
Score
13
CLOUD 89% LOW 0% MID 89% HIGH 3% SUN -14.1° MOON -12.3° / 0% WIND 3 TEMP 33°
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
When a clear gap is worth driving for

Ask how long the gap is relative to your setup time and your exposure length. A two-hour gap is a real session for a visual observer and close to worthless for someone doing four-minute subs on a target that needs three hours.

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 20:00–21:00 · 1H · MEAN 71

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

192123010305
CLOUD BREAKS 20:00CLOUD RETURNS 21:00
SET UP 19:30 · OBSERVE 20:00–21:00 · 1H · MEAN 69

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

192123010305
CLOUD BREAKS 20:00CLOUD RETURNS 21:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 19:30 · OBSERVE 20:00–21:00 · 1H · MEAN 71

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

192123010305
CLOUD BREAKS 20:00CLOUD RETURNS 21:00
SET UP 19:30 · OBSERVE 20:00–21:00 · 1H · MEAN 62

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

192123010305
CLOUD BREAKS 20:00CLOUD RETURNS 21:00
SET UP 19:30 · OBSERVE 20:00–21:00 · 1H · MEAN 67

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

192123010305
CLOUD BREAKS 20:00CLOUD RETURNS 21:00
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The next week of nights

Tonight · 12 Aug
71
Good
MOON 0%
20:00–21:00
Tomorrow · 13 Aug
96
Excellent
MOON 2%
20:00–05:00
Friday · 14 Aug
83
Excellent
MOON 6%
20:00–05:00
Saturday · 15 Aug
75
Excellent
MOON 13%
01:00–02:00
Sunday · 16 Aug
71
Good
MOON 21%
01:00–02:00
Monday · 17 Aug
76
Excellent
MOON 30%
01:00–02:00
Tuesday · 18 Aug
67
Good
MOON 39%
01:00–02:00
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About this forecast

Conditions for Fada, Chad 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 →