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Ābderafī

13.733° N   36.450° E  ·  611 M
58 /100
PEAK
Worth setting up — 9 hours of workable sky from 21:00.
BEST WINDOW 21:00–06:00 · ASTRO DARK 21:00–06:00 · MOON 0%
Transparency
0.70
Seeing
0.90
Cloud
47%
Moon
0%

Good tonight

Hour by hour, local to Ābderafī. 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
39
37
35
49
47
46
40
43
58
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
3%
3%
33%
3%
2%
1%
0%
0%
12%
75%
High cloud
92%
98%
71%
70%
76%
80%
93%
88%
40%
11%
Transparency
0.70
0.69
0.68
0.67
0.65
0.64
0.62
0.63
0.63
0.61
Seeing
0.71
0.76
0.79
0.76
0.81
0.82
0.84
0.88
0.90
0.91
Moon clear
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
21 Fair · 39/100
Starting from
100
Cloud
−52
Transparency
−6
Seeing
−3
Moonlight
−0
Darkness
−0
Score
39
CLOUD 93% LOW 0% MID 3% HIGH 92% SUN -28.6° MOON -26.7° / 0% WIND 5 TEMP 29°
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 23:30 · OBSERVE 00:00–06:00 · 6H · MEAN 45

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

2123010305
CLOUD RETURNS 06:00
SET UP 23:30 · OBSERVE 00:00–06:00 · 6H · MEAN 47

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

2123010305
CLOUD RETURNS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 37

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

2123010305
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 40

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

2123010305
HIGH CLOUD CLEARS 05:00CLOUD RETURNS 06:00
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 41

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

2123010305
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The next week of nights

Tonight · 12 Aug
58
Good
MOON 0%
21:00–06:00
Tomorrow · 13 Aug
77
Excellent
MOON 2%
02:00–06:00
Friday · 14 Aug
78
Excellent
MOON 6%
21:00–06:00
Saturday · 15 Aug
65
Good
MOON 13%
03:00–04:00
Sunday · 16 Aug
63
Good
MOON 21%
03:00–04:00
Monday · 17 Aug
65
Good
MOON 30%
03:00–04:00
Tuesday · 18 Aug
46
Fair
MOON 39%
03:00–04:00
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Nearby locations

About this forecast

Conditions for Ābderafī, Ethiopia 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 →