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Lamin

13.352° N   16.434° W  ·  15 M
53 /100
PEAK
Marginal, but there is a 4 hours gap from 02:00.
BEST WINDOW 02:00–06:00 · ASTRO DARK 21:00–06:00 · MOON 0%
Transparency
0.25
Seeing
1.00
Cloud
28%
Moon
0%

Fair tonight

Hour by hour, local to Lamin. 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
06
07
0
5
53
40
42
21
34
45
46
48
39
34
0
BEST WINDOW
Low cloud
41%
22%
3%
1%
0%
1%
5%
5%
13%
9%
10%
5%
6%
Mid cloud
8%
27%
0%
22%
35%
58%
12%
5%
1%
0%
0%
0%
0%
High cloud
69%
47%
39%
49%
22%
67%
77%
52%
42%
42%
69%
24%
13%
Transparency
0.10
0.25
0.25
0.25
0.24
0.24
0.24
0.24
0.24
0.23
0.23
0.23
0.23
Seeing
0.94
0.97
1.00
0.98
0.97
0.99
1.00
1.00
1.00
0.98
0.98
1.00
1.00
Moon clear
0%
down
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 · 0/100
Starting from
100
Cloud
−66
Transparency
−12
Seeing
−0
Moonlight
−0
Darkness
−21
Score
0
CLOUD 83% LOW 41% MID 8% HIGH 69% SUN 6.0° MOON 8.4° / 0% WIND 3 TEMP 27°
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
Why thin high cloud ruins long exposures

Cirrus you can barely see will halo your bright stars, lift your background and vary between frames. Visual observers shrug it off. Long exposures integrate it, so it accumulates.

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 01:30 · OBSERVE 02:00–06:00 · 4H · MEAN 42

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

19212301030507
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 06:00
SET UP 00:30 · OBSERVE 01:00–07:00 · 6H · MEAN 53

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

19212301030507
TWILIGHT BEGINS 07:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 37

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

19212301030507
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 05:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

19212301030507
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 44

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

19212301030507
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 05:00
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The next week of nights

Tonight · 12 Aug
53
Fair
MOON 0%
02:00–06:00
Tomorrow · 13 Aug
44
Fair
MOON 2%
04:00–05:00
Friday · 14 Aug
67
Good
MOON 6%
01:00–06:00
Saturday · 15 Aug
35
Fair
MOON 13%
00:00–01:00
Sunday · 16 Aug
12
Clouded out
MOON 21%
Monday · 17 Aug
6
Clouded out
MOON 30%
Tuesday · 18 Aug
26
Poor
MOON 39%
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Nearby locations

About this forecast

Conditions for Lamin, Gambia 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 →