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Paripiranga

-10.688° S   37.862° W  ·  439 M
4 /100
PEAK
Cloud will spoil it. Not a night for the telescope.
NO USABLE WINDOW · ASTRO DARK 19:00–05:00 · MOON 0%
Transparency
0.37
Seeing
0.86
Cloud
90%
Moon
0%

Clouded out tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
17
18
19
20
21
22
23
00
01
02
03
04
05
06
0
1
0
0
0
0
0
0
4
0
0
0
0
0
Low cloud
29%
89%
100%
100%
100%
100%
99%
99%
91%
100%
100%
100%
100%
100%
Mid cloud
3%
2%
2%
4%
5%
11%
21%
13%
30%
31%
61%
55%
27%
97%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.57
0.37
0.31
0.30
0.29
0.28
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
Seeing
0.60
0.63
0.71
0.74
0.77
0.77
0.84
0.80
0.86
0.80
0.80
0.80
0.80
0.85
Moon clear
0%
down
down
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down
down
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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
17 Clouded out · 0/100
Starting from
100
Cloud
−31
Transparency
−12
Seeing
−6
Moonlight
−0
Darkness
−51
Score
0
CLOUD 31% LOW 29% MID 3% HIGH 0% SUN 6.0° MOON 8.7° / 0% WIND 6 TEMP 24°
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.

NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

17192123010305
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

17192123010305
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

17192123010305
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

17192123010305
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

17192123010305
CONDITIONS STAY BELOW THE USABLE THRESHOLD
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The next week of nights

Tonight · 12 Aug
4
Clouded out
MOON 0%
Tomorrow · 13 Aug
14
Clouded out
MOON 3%
Friday · 14 Aug
48
Fair
MOON 7%
19:00–01:00
Saturday · 15 Aug
69
Good
MOON 15%
21:00–22:00
Sunday · 16 Aug
54
Fair
MOON 23%
21:00–22:00
Monday · 17 Aug
48
Fair
MOON 32%
21:00–22:00
Tuesday · 18 Aug
23
Poor
MOON 42%
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Nearby locations

About this forecast

Conditions for Paripiranga, Brazil 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 →