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Queimadas

-10.978° S   39.626° W  ·  291 M
56 /100
PEAK
Worth setting up — 1 hour of workable sky from 19:00.
BEST WINDOW 19:00–20:00 · ASTRO DARK 19:00–05:00 · MOON 0%
Transparency
0.53
Seeing
0.81
Cloud
24%
Moon
0%

Good tonight

Hour by hour, local to Queimadas. 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
2
56
9
41
18
0
0
4
0
0
0
0
0
BEST WINDOW
Low cloud
0%
9%
19%
80%
38%
73%
100%
100%
91%
99%
100%
100%
100%
100%
Mid cloud
18%
56%
7%
43%
8%
4%
4%
71%
27%
20%
20%
38%
17%
15%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.38
0.42
0.53
0.43
0.41
0.40
0.40
0.12
0.10
0.10
0.30
0.33
0.34
0.36
Seeing
0.47
0.63
0.64
0.63
0.68
0.76
0.78
0.77
0.78
0.79
0.81
0.78
0.79
0.77
Moon clear
0%
down
down
down
down
down
down
down
down
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
−16
Transparency
−21
Seeing
−8
Moonlight
−0
Darkness
−55
Score
0
CLOUD 18% LOW 0% MID 18% HIGH 0% SUN 7.6° MOON 10.2° / 0% WIND 7 TEMP 26°
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 18:30 · OBSERVE 19:00–20:00 · 1H · MEAN 59

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

17192123010305
CLOUD BREAKS 19:00CLOUD RETURNS 20:00
SET UP 18:30 · OBSERVE 19:00–20:00 · 1H · MEAN 57

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

17192123010305
CLOUD BREAKS 19:00CLOUD RETURNS 20:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 18:30 · OBSERVE 19:00–20:00 · 1H · MEAN 58

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

17192123010305
CLOUD BREAKS 19:00CLOUD RETURNS 20:00
SET UP 18:30 · OBSERVE 19:00–20:00 · 1H · MEAN 47

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

17192123010305
CLOUD BREAKS 19:00CLOUD RETURNS 20:00
SET UP 18:30 · OBSERVE 19:00–20:00 · 1H · MEAN 61

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

17192123010305
CLOUD BREAKS 19:00CLOUD RETURNS 20:00
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The next week of nights

Tonight · 12 Aug
56
Good
MOON 0%
19:00–20:00
Tomorrow · 13 Aug
70
Good
MOON 3%
19:00–05:00
Friday · 14 Aug
94
Excellent
MOON 7%
19:00–00:00
Saturday · 15 Aug
84
Excellent
MOON 15%
21:00–22:00
Sunday · 16 Aug
81
Excellent
MOON 23%
21:00–22:00
Monday · 17 Aug
67
Good
MOON 32%
21:00–22:00
Tuesday · 18 Aug
13
Clouded out
MOON 42%
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Nearby locations

About this forecast

Conditions for Queimadas, 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 →