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Gaigeturi

33.464° N   126.318° E  ·  8 M
53 /100
PEAK
Marginal, but there is a 2 hours gap from 03:00.
BEST WINDOW 03:00–05:00 · ASTRO DARK 03:00–05:00 · MOON 0%
Transparency
0.53
Seeing
0.77
Cloud
30%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
03
04
05
06
53
48
24
0
BEST WINDOW
Low cloud
19%
1%
1%
2%
Mid cloud
9%
2%
2%
2%
High cloud
12%
64%
54%
50%
Transparency
0.53
0.53
0.51
0.49
Seeing
0.75
0.75
0.77
0.77
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
03 Fair · 53/100
Starting from
100
Cloud
−30
Transparency
−13
Seeing
−4
Moonlight
−0
Darkness
−0
Score
53
CLOUD 30% LOW 19% MID 9% HIGH 12% SUN -31.2° MOON -31.6° / 0% WIND 5 TEMP 26°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.
Tonight's limiting factor
Why thin high cloud ruins long exposures

Cirrus you can barely see will halo your bright stars, lift your background and vary between frames. Visual observers shrug it off. Long exposures integrate it, so it accumulates.

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 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 51

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

0305
TWILIGHT BEGINS 05:00
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 49

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

0305
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 46

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

0305
TWILIGHT BEGINS 05:00
SET UP 02:30 · OBSERVE 03:00–04:00 · 1H · MEAN 40

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

0305
CLOUD RETURNS 04:00
SET UP 02:30 · OBSERVE 03:00–05:00 · 2H · MEAN 50

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

0305
TWILIGHT BEGINS 05:00
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The next week of nights

Tonight · 12 Aug
53
Fair
MOON 0%
03:00–05:00
Tomorrow · 13 Aug
50
Fair
MOON 1%
21:00–00:00
Friday · 14 Aug
32
Poor
MOON 5%
Saturday · 15 Aug
5
Clouded out
MOON 8%
Sunday · 16 Aug
28
Poor
MOON 19%
Monday · 17 Aug
70
Good
MOON 28%
21:00–22:00
Tuesday · 18 Aug
56
Good
MOON 37%
03:00–04:00
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Nearby locations

About this forecast

Conditions for Gaigeturi, South Korea 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 →