GoodSeeing
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Balikpapan

-1.268° S   116.829° E  ·  67 M
53 /100
PEAK
Marginal, but there is a 3 hours gap from 03:00.
BEST WINDOW 03:00–06:00 · ASTRO DARK 02:00–06:00 · MOON 0%
Transparency
0.43
Seeing
0.63
Cloud
23%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
02
03
04
05
06
29
38
53
45
0
BEST WINDOW
Low cloud
25%
20%
23%
34%
34%
Mid cloud
2%
2%
0%
0%
0%
High cloud
77%
55%
0%
0%
0%
Transparency
0.43
0.41
0.40
0.39
0.38
Seeing
0.59
0.62
0.63
0.63
0.65
Moon clear
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
02 Poor · 29/100
Starting from
100
Cloud
−58
Transparency
−10
Seeing
−3
Moonlight
−0
Darkness
−0
Score
29
CLOUD 83% LOW 25% MID 2% HIGH 77% SUN -61.4° MOON -62.6° / 0% WIND 6 TEMP 27°
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
What the GoodSeeing score actually measures

One number from 0 to 100 per hour, combining cloud, transparency, seeing, moonlight and darkness. Cloud gates everything else — no amount of steady, dark air rescues an overcast sky.

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 03:00–06:00 · 3H · MEAN 48

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

020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 06:00
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 47

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

020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 50

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

020406
HIGH CLOUD CLEARS 04:00TWILIGHT BEGINS 06:00
SET UP 03:30 · OBSERVE 04:00–05:00 · 1H · MEAN 43

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

020406
HIGH CLOUD CLEARS 04:00
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 48

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

020406
HIGH CLOUD CLEARS 03:00TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
53
Fair
MOON 0%
03:00–06:00
Tomorrow · 13 Aug
64
Good
MOON 1%
20:00–00:00
Friday · 14 Aug
34
Poor
MOON 5%
Saturday · 15 Aug
37
Fair
MOON 10%
20:00–21:00
Sunday · 16 Aug
36
Fair
MOON 19%
20:00–21:00
Monday · 17 Aug
55
Good
MOON 28%
20:00–21:00
Tuesday · 18 Aug
57
Good
MOON 37%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Balikpapan, Indonesia 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 →