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Khimki

55.900° N   37.428° E  ·  186 M
47 /100
PEAK
Marginal, but there is a 2 hours gap from 01:00.
BEST WINDOW 01:00–03:00 · ASTRO DARK 00:00–02:00 · MOON 0%
Transparency
0.70
Seeing
0.80
Cloud
1%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
20
21
22
23
00
01
02
03
04
05
0
0
25
33
33
46
47
43
8
0
BEST WINDOW
Low cloud
5%
2%
2%
1%
2%
2%
0%
0%
2%
2%
Mid cloud
11%
10%
8%
9%
18%
6%
1%
1%
0%
0%
High cloud
0%
2%
59%
86%
88%
66%
58%
1%
0%
0%
Transparency
0.74
0.70
0.66
0.61
0.56
0.54
0.52
0.51
0.49
0.46
Seeing
0.78
0.80
0.78
0.76
0.76
0.76
0.76
0.73
0.74
0.73
Moon clear
0%
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
20 Clouded out · 0/100
Starting from
100
Cloud
−14
Transparency
−9
Seeing
−4
Moonlight
−0
Darkness
−73
Score
0
CLOUD 12% LOW 5% MID 11% HIGH 0% SUN 1.1° MOON 2.8° / 0% WIND 4 TEMP 15°
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 00:30 · OBSERVE 01:00–04:00 · 3H · MEAN 41

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

2022000204
HIGH CLOUD CLEARS 01:00TWILIGHT BEGINS 04:00
SET UP 00:30 · OBSERVE 01:00–05:00 · 4H · MEAN 53

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

2022000204
HIGH CLOUD CLEARS 01:00TWILIGHT BEGINS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 00:30 · OBSERVE 01:00–04:00 · 3H · MEAN 38

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

2022000204
HIGH CLOUD CLEARS 01:00TWILIGHT BEGINS 04:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2022000204
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 00:30 · OBSERVE 01:00–04:00 · 3H · MEAN 41

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

2022000204
HIGH CLOUD CLEARS 01:00TWILIGHT BEGINS 04:00
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The next week of nights

Tonight · 12 Aug
47
Fair
MOON 0%
01:00–03:00
Tomorrow · 13 Aug
20
Poor
MOON 2%
Friday · 14 Aug
57
Good
MOON 6%
02:00–03:00
Saturday · 15 Aug
4
Clouded out
MOON 13%
Sunday · 16 Aug
26
Poor
MOON 21%
Monday · 17 Aug
55
Good
MOON 30%
Tuesday · 18 Aug
59
Good
MOON 39%
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Nearby locations

About this forecast

Conditions for Khimki, 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 →