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Shanhecun

45.711° N   128.580° E  ·  143 M
56 /100
PEAK
Worth setting up — 1 hour of workable sky from 02:00.
BEST WINDOW 02:00–03:00 · ASTRO DARK 01:00–03:00 · MOON 0%
Transparency
0.42
Seeing
0.82
Cloud
29%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
01
02
03
04
34
56
16
0
BEST WINDOW
Low cloud
7%
16%
14%
12%
Mid cloud
1%
2%
4%
6%
High cloud
90%
15%
98%
100%
Transparency
0.41
0.42
0.37
0.34
Seeing
0.79
0.82
0.81
0.88
Moon clear
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
01 Poor · 34/100
Starting from
100
Cloud
−53
Transparency
−11
Seeing
−2
Moonlight
−0
Darkness
−0
Score
34
CLOUD 91% LOW 7% MID 1% HIGH 90% SUN -26.1° MOON -25.5° / 0% WIND 4 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 01:30 · OBSERVE 02:00–03:00 · 1H · MEAN 57

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

0103
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 03:00
SET UP 00:30 · OBSERVE 01:00–03:00 · 2H · MEAN 49

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

0103
CLOUD RETURNS 03:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 01:30 · OBSERVE 02:00–03:00 · 1H · MEAN 53

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

0103
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 03:00
SET UP 01:30 · OBSERVE 02:00–03:00 · 1H · MEAN 42

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

0103
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 03:00
SET UP 01:30 · OBSERVE 02:00–03:00 · 1H · MEAN 58

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

0103
HIGH CLOUD CLEARS 02:00CLOUD RETURNS 03:00
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The next week of nights

Tonight · 12 Aug
56
Good
MOON 0%
02:00–03:00
Tomorrow · 13 Aug
30
Poor
MOON 1%
Friday · 14 Aug
64
Good
MOON 5%
23:00–03:00
Saturday · 15 Aug
5
Clouded out
MOON 10%
Sunday · 16 Aug
2
Clouded out
MOON 19%
Monday · 17 Aug
8
Clouded out
MOON 28%
Tuesday · 18 Aug
33
Poor
MOON 37%
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Nearby locations

About this forecast

Conditions for Shanhecun, China 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 →