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Uchkeken

43.945° N   42.517° E  ·  939 M
72 /100
PEAK
Worth setting up — 7 hours of workable sky from 21:00.
BEST WINDOW 21:00–04:00 · ASTRO DARK 22:00–04:00 · MOON 0%
Transparency
0.45
Seeing
1.00
Cloud
8%
Moon
0%

Good tonight

Hour by hour, local to Uchkeken. 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
0
5
39
60
69
61
64
72
66
32
0
BEST WINDOW
Low cloud
11%
11%
1%
1%
1%
3%
3%
2%
2%
4%
4%
Mid cloud
30%
31%
11%
9%
8%
13%
6%
5%
2%
12%
18%
High cloud
41%
26%
55%
18%
1%
9%
13%
1%
21%
10%
5%
Transparency
0.40
0.39
0.35
0.35
0.37
0.36
0.39
0.44
0.44
0.45
0.47
Seeing
1.00
1.00
1.00
1.00
1.00
1.00
0.99
0.98
1.00
1.00
1.00
Moon clear
0%
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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
−50
Transparency
−12
Seeing
−0
Moonlight
−0
Darkness
−38
Score
0
CLOUD 60% LOW 11% MID 30% HIGH 41% SUN 2.5° MOON 4.1° / 0% WIND 1 TEMP 21°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

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 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 65

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

192123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 20:30 · OBSERVE 21:00–05:00 · 8H · MEAN 72

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

192123010305
ASTRONOMICAL DARK FROM 21:00TWILIGHT BEGINS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 60

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

192123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 51

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

192123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 67

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

192123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
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The next week of nights

Tonight · 12 Aug
72
Good
MOON 0%
21:00–04:00
Tomorrow · 13 Aug
49
Fair
MOON 2%
21:00–23:00
Friday · 14 Aug
62
Good
MOON 6%
23:00–04:00
Saturday · 15 Aug
68
Good
MOON 13%
03:00–04:00
Sunday · 16 Aug
57
Good
MOON 21%
21:00–22:00
Monday · 17 Aug
37
Fair
MOON 30%
21:00–22:00
Tuesday · 18 Aug
58
Good
MOON 39%
03:00–04:00
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Nearby locations

About this forecast

Conditions for Uchkeken, Russia 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 →