GoodSeeing
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Itezhi-Tezhi

-15.737° S   26.042° E  ·  1034 M
66 /100
PEAK
Worth setting up — 10 hours of workable sky from 20:00.
BEST WINDOW 20:00–06:00 · ASTRO DARK 20:00–06:00 · MOON 0%
Transparency
0.47
Seeing
0.74
Cloud
2%
Moon
0%

Good tonight

Hour by hour, local to Itezhi-Tezhi. 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
25
51
42
37
37
41
43
52
64
66
63
15
0
BEST WINDOW
Low cloud
3%
2%
1%
4%
7%
2%
4%
0%
0%
1%
5%
4%
10%
Mid cloud
41%
31%
32%
38%
36%
31%
24%
21%
5%
2%
2%
2%
1%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.33
0.47
0.10
0.10
0.10
0.10
0.10
0.28
0.37
0.41
0.39
0.36
0.34
Seeing
0.74
0.65
0.74
0.72
0.64
0.57
0.55
0.62
0.57
0.56
0.56
0.55
0.55
Moon clear
down
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 Poor · 25/100
Starting from
100
Cloud
−39
Transparency
−16
Seeing
−3
Moonlight
−0
Darkness
−17
Score
25
CLOUD 41% LOW 3% MID 41% HIGH 0% SUN -13.1° MOON -12.2° / 0% WIND 5 TEMP 22°
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 20:00–06:00 · 10H · MEAN 53

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

19212301030507
ASTRONOMICAL DARK FROM 20:00TWILIGHT BEGINS 06:00
SET UP 18:30 · OBSERVE 19:00–07:00 · 12H · MEAN 52

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 19:30 · OBSERVE 20:00–06:00 · 10H · MEAN 50

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

19212301030507
ASTRONOMICAL DARK FROM 20:00TWILIGHT BEGINS 06:00
SET UP 01:30 · OBSERVE 02:00–06:00 · 4H · MEAN 53

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

19212301030507
TWILIGHT BEGINS 06:00
SET UP 19:30 · OBSERVE 20:00–06:00 · 10H · MEAN 56

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

19212301030507
ASTRONOMICAL DARK FROM 20:00TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
66
Good
MOON 0%
20:00–06:00
Tomorrow · 13 Aug
74
Good
MOON 2%
20:00–06:00
Friday · 14 Aug
76
Excellent
MOON 6%
20:00–06:00
Saturday · 15 Aug
81
Excellent
MOON 13%
20:00–21:00
Sunday · 16 Aug
87
Excellent
MOON 21%
20:00–21:00
Monday · 17 Aug
83
Excellent
MOON 30%
02:00–03:00
Tuesday · 18 Aug
83
Excellent
MOON 39%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Itezhi-Tezhi, Zambia 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 →