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Balzar

-1.365° S   79.905° W  ·  41 M
50 /100
PEAK
Marginal, but there is a 3 hours gap from 00:00.
BEST WINDOW 00:00–03:00 · ASTRO DARK 20:00–06:00 · MOON 1%
Transparency
0.21
Seeing
1.00
Cloud
30%
Moon
1%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
18
19
20
21
22
23
00
01
02
03
04
05
06
07
0
2
5
13
36
10
46
50
46
18
27
39
1
0
BEST WINDOW
Low cloud
24%
69%
89%
71%
32%
77%
7%
8%
11%
68%
56%
38%
38%
65%
Mid cloud
39%
58%
30%
28%
13%
33%
24%
20%
23%
20%
9%
8%
4%
8%
High cloud
1%
1%
4%
14%
9%
2%
3%
6%
4%
1%
0%
0%
1%
0%
Transparency
0.25
0.10
0.10
0.10
0.10
0.10
0.10
0.21
0.18
0.18
0.18
0.19
0.21
0.23
Seeing
0.88
0.84
0.92
0.96
0.98
0.97
0.98
0.98
0.96
0.97
1.00
1.00
1.00
1.00
Moon clear
0%
down
down
down
down
down
down
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
18 Clouded out · 0/100
Starting from
100
Cloud
−51
Transparency
−15
Seeing
−1
Moonlight
−0
Darkness
−33
Score
0
CLOUD 47% LOW 24% MID 39% HIGH 1% SUN 5.7° MOON 10.0° / 0% WIND 3 TEMP 30°
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
Conditions for planets and the Moon

Seeing is everything. Darkness and moonlight barely matter, and a hazy, humid night that ruins deep-sky work is often the steadiest night of the year for planetary detail.

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 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 47

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

18202200020406
CLOUD BREAKS 00:00CLOUD RETURNS 03:00
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 59

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

18202200020406
CLOUD BREAKS 00:00CLOUD RETURNS 03:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 43

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

18202200020406
CLOUD BREAKS 00:00CLOUD RETURNS 03:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

18202200020406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 48

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

18202200020406
CLOUD BREAKS 00:00CLOUD RETURNS 03:00
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The next week of nights

Tonight · 12 Aug
50
Fair
MOON 0%
00:00–03:00
Tomorrow · 13 Aug
43
Fair
MOON 3%
21:00–22:00
Friday · 14 Aug
69
Good
MOON 7%
21:00–02:00
Saturday · 15 Aug
6
Clouded out
MOON 15%
Sunday · 16 Aug
0
Clouded out
MOON 23%
Monday · 17 Aug
6
Clouded out
MOON 32%
Tuesday · 18 Aug
0
Clouded out
MOON 42%
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Nearby locations

About this forecast

Conditions for Balzar, Ecuador 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 →