GoodSeeing
Home › Locations › Bétou

Bétou

3.055° N   18.517° E  ·  340 M
60 /100
PEAK
Worth setting up — 3 hours of workable sky from 02:00.
BEST WINDOW 02:00–05:00 · ASTRO DARK 20:00–05:00 · MOON 0%
Transparency
0.31
Seeing
1.00
Cloud
18%
Moon
0%

Good tonight

Hour by hour, local to Bétou. 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
0
47
55
31
29
28
27
34
48
60
42
13
0
BEST WINDOW
Low cloud
10%
6%
12%
5%
8%
12%
6%
5%
0%
1%
5%
27%
38%
Mid cloud
9%
6%
5%
2%
6%
7%
12%
4%
3%
1%
8%
19%
6%
High cloud
29%
17%
13%
94%
92%
92%
95%
75%
49%
17%
50%
32%
87%
Transparency
0.31
0.31
0.26
0.23
0.23
0.21
0.19
0.10
0.18
0.17
0.18
0.17
0.17
Seeing
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
0%
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
−31
Transparency
−19
Seeing
−0
Moonlight
−0
Darkness
−50
Score
0
CLOUD 42% LOW 10% MID 9% HIGH 29% SUN -1.3° MOON 0.5° / 0% WIND 2 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 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 48

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

18202200020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 05:00
SET UP 00:30 · OBSERVE 01:00–05:00 · 4H · MEAN 57

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

18202200020406
HIGH CLOUD CLEARS 01:00TWILIGHT BEGINS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 18:30 · OBSERVE 19:00–21:00 · 2H · MEAN 45

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

18202200020406
CLOUD BREAKS 19:00CLOUD RETURNS 21:00
SET UP 02:30 · OBSERVE 03:00–04:00 · 1H · MEAN 42

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

18202200020406
HIGH CLOUD CLEARS 03:00CLOUD RETURNS 04:00
SET UP 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 49

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

18202200020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 05:00
Advertisement
Reserved

The next week of nights

Tonight · 12 Aug
60
Good
MOON 0%
02:00–05:00
Tomorrow · 13 Aug
49
Fair
MOON 2%
20:00–23:00
Friday · 14 Aug
28
Poor
MOON 6%
Saturday · 15 Aug
0
Clouded out
MOON 13%
Sunday · 16 Aug
11
Clouded out
MOON 21%
Monday · 17 Aug
16
Poor
MOON 30%
Tuesday · 18 Aug
21
Poor
MOON 39%
Advertisement
Reserved

Nearby locations

About this forecast

Conditions for Bétou, Congo - Brazzaville 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 →