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Lenbe

19.706° N   72.403° W  ·  34 M
58 /100
PEAK
Worth setting up — 5 hours of workable sky from 01:00.
BEST WINDOW 01:00–06:00 · ASTRO DARK 21:00–06:00 · MOON 0%
Transparency
0.27
Seeing
1.00
Cloud
13%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
19
20
21
22
23
00
01
02
03
04
05
06
07
0
1
19
28
27
34
41
45
38
42
58
7
0
BEST WINDOW
Low cloud
100%
74%
43%
20%
13%
1%
0%
0%
12%
11%
4%
3%
3%
Mid cloud
7%
7%
1%
1%
0%
0%
0%
0%
1%
1%
0%
0%
0%
High cloud
41%
93%
78%
70%
88%
91%
76%
65%
66%
46%
10%
10%
38%
Transparency
0.10
0.10
0.16
0.16
0.17
0.19
0.27
0.26
0.21
0.19
0.18
0.19
0.18
Seeing
0.87
1.00
0.94
0.99
1.00
1.00
1.00
1.00
0.97
0.89
0.95
1.00
0.91
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
19 Clouded out · 0/100
Starting from
100
Cloud
−100
Transparency
−0
Seeing
−0
Moonlight
−0
Darkness
−0
Score
0
CLOUD 100% LOW 100% MID 7% HIGH 41% SUN 3.8° MOON 7.8° / 0% WIND 3 TEMP 25°
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
Why thin high cloud ruins long exposures

Cirrus you can barely see will halo your bright stars, lift your background and vary between frames. Visual observers shrug it off. Long exposures integrate it, so it accumulates.

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 00:30 · OBSERVE 01:00–06:00 · 5H · MEAN 43

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

19212301030507
CLOUD BREAKS 01:00TWILIGHT BEGINS 06:00
SET UP 23:30 · OBSERVE 00:00–07:00 · 7H · MEAN 51

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

19212301030507
CLOUD RETURNS 07:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 44

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

19212301030507
HIGH CLOUD CLEARS 04:00TWILIGHT BEGINS 06:00
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 42

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

19212301030507
HIGH CLOUD CLEARS 05:00TWILIGHT BEGINS 06:00
SET UP 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 51

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

19212301030507
HIGH CLOUD CLEARS 04:00TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
58
Good
MOON 0%
01:00–06:00
Tomorrow · 13 Aug
65
Good
MOON 3%
21:00–04:00
Friday · 14 Aug
59
Good
MOON 7%
00:00–03:00
Saturday · 15 Aug
71
Good
MOON 15%
02:00–03:00
Sunday · 16 Aug
68
Good
MOON 23%
02:00–03:00
Monday · 17 Aug
28
Poor
MOON 32%
Tuesday · 18 Aug
3
Clouded out
MOON 42%
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Nearby locations

About this forecast

Conditions for Lenbe, Haiti 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 →