GoodSeeing
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Lubu

23.172° N   112.283° E  ·  18 M
67 /100
PEAK
Worth setting up — 3 hours of workable sky from 01:00.
BEST WINDOW 01:00–04:00 · ASTRO DARK 00:00–05:00 · MOON 0%
Transparency
0.38
Seeing
1.00
Cloud
10%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
00
01
02
03
04
05
06
32
63
67
42
33
32
0
BEST WINDOW
Low cloud
9%
5%
9%
13%
5%
1%
10%
Mid cloud
9%
10%
1%
27%
46%
22%
27%
High cloud
88%
5%
1%
1%
16%
31%
34%
Transparency
0.37
0.38
0.36
0.10
0.10
0.10
0.10
Seeing
1.00
1.00
1.00
1.00
1.00
0.98
1.00
Moon clear
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
00 Poor · 32/100
Starting from
100
Cloud
−57
Transparency
−11
Seeing
−0
Moonlight
−0
Darkness
−0
Score
32
CLOUD 90% LOW 9% MID 9% HIGH 88% SUN -50.8° MOON -49.5° / 0% WIND 2 TEMP 29°
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 57

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

00020406
HIGH CLOUD CLEARS 01:00CLOUD RETURNS 04:00
SET UP 23:30 · OBSERVE 00:00–06:00 · 6H · MEAN 56

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

00020406
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 00:30 · OBSERVE 01:00–04:00 · 3H · MEAN 53

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

00020406
HIGH CLOUD CLEARS 01:00CLOUD RETURNS 04:00
SET UP 00:30 · OBSERVE 01:00–03:00 · 2H · MEAN 51

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

00020406
HIGH CLOUD CLEARS 01:00CLOUD RETURNS 03:00
SET UP 00:30 · OBSERVE 01:00–04:00 · 3H · MEAN 59

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

00020406
HIGH CLOUD CLEARS 01:00CLOUD RETURNS 04:00
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The next week of nights

Tonight · 12 Aug
67
Good
MOON 0%
01:00–04:00
Tomorrow · 13 Aug
35
Fair
MOON 1%
22:00–23:00
Friday · 14 Aug
31
Poor
MOON 5%
Saturday · 15 Aug
34
Poor
MOON 10%
Sunday · 16 Aug
22
Poor
MOON 19%
Monday · 17 Aug
19
Poor
MOON 28%
Tuesday · 18 Aug
33
Poor
MOON 37%
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Nearby locations

About this forecast

Conditions for Lubu, 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 →