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Jiangluo

33.901° N   105.822° E  ·  1175 M
83 /100
PEAK
A genuinely good night — 4 hours of clear, dark sky from 01:00.
BEST WINDOW 01:00–05:00 · ASTRO DARK 01:00–05:00 · MOON 0%
Transparency
0.65
Seeing
0.90
Cloud
0%
Moon
0%

Excellent tonight

Hour by hour, local to Jiangluo. 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
05
06
83
81
82
83
64
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
Mid cloud
0%
0%
0%
0%
0%
0%
High cloud
0%
0%
0%
0%
0%
0%
Transparency
0.62
0.59
0.62
0.65
0.63
0.62
Seeing
0.90
0.88
0.87
0.86
0.85
0.85
Moon clear
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
01 Excellent · 83/100
Starting from
100
Cloud
−0
Transparency
−15
Seeing
−2
Moonlight
−0
Darkness
−0
Score
83
CLOUD 0% LOW 0% MID 0% HIGH 0% SUN -41.1° MOON -40.2° / 0% WIND 3 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 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 79

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

010305
TWILIGHT BEGINS 06:00
SET UP 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 86

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

010305
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 77

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

010305
TWILIGHT BEGINS 06:00
SET UP 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 71

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

010305
TWILIGHT BEGINS 06:00
SET UP 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 83

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

010305
TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
83
Excellent
MOON 0%
01:00–05:00
Tomorrow · 13 Aug
85
Excellent
MOON 1%
22:00–05:00
Friday · 14 Aug
90
Excellent
MOON 5%
22:00–05:00
Saturday · 15 Aug
57
Good
MOON 10%
02:00–03:00
Sunday · 16 Aug
3
Clouded out
MOON 19%
Monday · 17 Aug
7
Clouded out
MOON 28%
Tuesday · 18 Aug
67
Good
MOON 37%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Jiangluo, 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 →