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Garba Tula

0.534° N   38.519° E  ·  512 M
87 /100
PEAK
A genuinely good night — 9 hours of clear, dark sky from 21:00.
BEST WINDOW 21:00–06:00 · ASTRO DARK 21:00–06:00 · MOON 0%
Transparency
1.00
Seeing
0.48
Cloud
0%
Moon
0%

Excellent tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
21
22
23
00
01
02
03
04
05
06
07
87
87
71
62
37
37
40
39
35
4
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
High cloud
0%
0%
19%
35%
93%
93%
86%
86%
95%
95%
78%
Transparency
1.00
1.00
0.82
0.75
0.73
0.73
0.68
0.63
0.63
0.65
0.70
Seeing
0.48
0.46
0.41
0.42
0.44
0.42
0.44
0.46
0.45
0.46
0.47
Moon clear
down
down
down
down
down
down
down
down
down
down
0%
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
21 Excellent · 87/100
Starting from
100
Cloud
−0
Transparency
−0
Seeing
−13
Moonlight
−0
Darkness
−0
Score
87
CLOUD 0% LOW 0% MID 0% HIGH 0% SUN -35.6° MOON -33.7° / 0% WIND 7 TEMP 28°
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 20:30 · OBSERVE 21:00–06:00 · 9H · MEAN 58

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

212301030507
TWILIGHT BEGINS 06:00
SET UP 20:30 · OBSERVE 21:00–01:00 · 4H · MEAN 66

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

212301030507
CLOUD RETURNS 01:00SEEING STAYS SOFT THROUGHOUTMOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:30 · OBSERVE 21:00–01:00 · 4H · MEAN 83

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

212301030507
CLOUD RETURNS 01:00
SET UP 20:30 · OBSERVE 21:00–01:00 · 4H · MEAN 76

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

212301030507
CLOUD RETURNS 01:00
SET UP 20:30 · OBSERVE 21:00–01:00 · 4H · MEAN 87

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

212301030507
CLOUD RETURNS 01:00
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The next week of nights

Tonight · 12 Aug
87
Excellent
MOON 0%
21:00–06:00
Tomorrow · 13 Aug
85
Excellent
MOON 2%
20:00–06:00
Friday · 14 Aug
87
Excellent
MOON 6%
20:00–06:00
Saturday · 15 Aug
91
Excellent
MOON 13%
21:00–22:00
Sunday · 16 Aug
49
Fair
MOON 21%
21:00–22:00
Monday · 17 Aug
81
Excellent
MOON 30%
21:00–22:00
Tuesday · 18 Aug
79
Excellent
MOON 39%
03:00–04:00
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Nearby locations

About this forecast

Conditions for Garba Tula, Kenya 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 →