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Petropavl

54.873° N   69.151° E  ·  141 M
55 /100
PEAK
Worth setting up — 4 hours of workable sky from 23:00.
BEST WINDOW 23:00–03:00 · ASTRO DARK 00:00–02:00 · MOON 0%
Transparency
0.61
Seeing
1.00
Cloud
5%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
22
23
00
01
02
03
04
05
45
55
45
53
49
42
7
0
BEST WINDOW
Low cloud
1%
3%
2%
2%
2%
3%
4%
2%
Mid cloud
15%
32%
48%
35%
37%
6%
2%
0%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.61
0.54
0.51
0.47
0.42
0.40
0.37
0.35
Seeing
0.99
1.00
1.00
1.00
0.99
0.95
0.97
0.98
Moon clear
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
22 Fair · 45/100
Starting from
100
Cloud
−14
Transparency
−13
Seeing
−0
Moonlight
−0
Darkness
−28
Score
45
CLOUD 15% LOW 1% MID 15% HIGH 0% SUN -13.4° MOON -12.1° / 0% WIND 2 TEMP 18°
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 22:00–03:00 · 5H · MEAN 47

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

22000204
TWILIGHT BEGINS 03:00
SET UP 21:30 · OBSERVE 22:00–05:00 · 7H · MEAN 60

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

22000204
TWILIGHT BEGINS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 44

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

22000204
TWILIGHT BEGINS 04:00
SET UP 00:30 · OBSERVE 01:00–03:00 · 2H · MEAN 37

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

22000204
TWILIGHT BEGINS 03:00
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 44

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

22000204
TWILIGHT BEGINS 04:00
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The next week of nights

Tonight · 12 Aug
55
Good
MOON 0%
23:00–03:00
Tomorrow · 13 Aug
82
Excellent
MOON 2%
23:00–03:00
Friday · 14 Aug
78
Excellent
MOON 6%
23:00–03:00
Saturday · 15 Aug
23
Poor
MOON 13%
Sunday · 16 Aug
83
Excellent
MOON 21%
23:00–00:00
Monday · 17 Aug
43
Fair
MOON 30%
23:00–00:00
Tuesday · 18 Aug
34
Poor
MOON 39%
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Nearby locations

About this forecast

Conditions for Petropavl, Kazakhstan 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 →