GoodSeeing
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Nazrēt

8.550° N   39.267° E  ·  1627 M
58 /100
PEAK
Worth setting up — 2 hours of workable sky from 21:00.
BEST WINDOW 21:00–23:00 · ASTRO DARK 21:00–06:00 · MOON 0%
Transparency
0.41
Seeing
0.92
Cloud
27%
Moon
0%

Good tonight

Hour by hour, local to Nazrēt. 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
58
44
31
20
3
3
3
15
46
0
BEST WINDOW
Low cloud
2%
2%
2%
2%
4%
5%
6%
16%
6%
1%
Mid cloud
2%
1%
26%
45%
100%
100%
98%
66%
22%
16%
High cloud
23%
63%
77%
78%
81%
97%
95%
59%
16%
33%
Transparency
0.41
0.38
0.40
0.13
0.10
0.10
0.10
0.22
0.21
0.22
Seeing
0.61
0.66
0.69
0.76
0.79
0.89
0.92
0.86
0.89
0.90
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 Good · 58/100
Starting from
100
Cloud
−16
Transparency
−20
Seeing
−6
Moonlight
−0
Darkness
−0
Score
58
CLOUD 27% LOW 2% MID 2% HIGH 23% SUN -33.3° MOON -31.4° / 0% WIND 6 TEMP 19°
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 20:30 · OBSERVE 21:00–23:00 · 2H · MEAN 52

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

2123010305
CLOUD RETURNS 23:00
SET UP 20:30 · OBSERVE 21:00–23:00 · 2H · MEAN 52

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

2123010305
CLOUD RETURNS 23:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:30 · OBSERVE 21:00–23:00 · 2H · MEAN 46

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

2123010305
CLOUD RETURNS 23:00
SET UP 20:30 · OBSERVE 21:00–22:00 · 1H · MEAN 44

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

2123010305
CLOUD RETURNS 22:00
SET UP 20:30 · OBSERVE 21:00–23:00 · 2H · MEAN 53

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

2123010305
CLOUD RETURNS 23:00
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The next week of nights

Tonight · 12 Aug
58
Good
MOON 0%
21:00–23:00
Tomorrow · 13 Aug
60
Good
MOON 2%
20:00–03:00
Friday · 14 Aug
63
Good
MOON 6%
00:00–03:00
Saturday · 15 Aug
64
Good
MOON 13%
21:00–22:00
Sunday · 16 Aug
53
Fair
MOON 21%
03:00–04:00
Monday · 17 Aug
63
Good
MOON 30%
21:00–22:00
Tuesday · 18 Aug
64
Good
MOON 39%
21:00–22:00
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Nearby locations

About this forecast

Conditions for Nazrēt, 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 →