GoodSeeing
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Bushehr

28.969° N   50.837° E  ·  8 M
80 /100
PEAK
A genuinely good night — 7 hours of clear, dark sky from 21:30.
BEST WINDOW 21:30–04:30 · ASTRO DARK 21:30–04:30 · MOON 0%
Transparency
0.57
Seeing
1.00
Cloud
0%
Moon
0%

Excellent tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
21
22
23
00
01
02
03
04
05
60
74
80
75
67
69
73
49
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
3%
0%
0%
0%
0%
1%
1%
0%
0%
High cloud
34%
7%
0%
2%
9%
7%
2%
0%
0%
Transparency
0.55
0.54
0.57
0.51
0.38
0.38
0.39
0.39
0.34
Seeing
0.68
0.78
0.85
0.79
0.78
0.83
0.92
1.00
0.94
Moon clear
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
21 Good · 60/100
Starting from
100
Cloud
−21
Transparency
−14
Seeing
−5
Moonlight
−0
Darkness
−0
Score
60
CLOUD 34% LOW 0% MID 3% HIGH 34% SUN -31.2° MOON -29.5° / 0% WIND 5 TEMP 36°
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 21:00 · OBSERVE 21:30–05:30 · 8H · MEAN 68

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

2123010305
TWILIGHT BEGINS 05:30
SET UP 21:00 · OBSERVE 21:30–05:30 · 8H · MEAN 77

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

2123010305
TWILIGHT BEGINS 05:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 21:00 · OBSERVE 21:30–05:30 · 8H · MEAN 66

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

2123010305
TWILIGHT BEGINS 05:30
SET UP 21:00 · OBSERVE 21:30–05:30 · 8H · MEAN 57

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

2123010305
TWILIGHT BEGINS 05:30
SET UP 21:00 · OBSERVE 21:30–05:30 · 8H · MEAN 73

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

2123010305
TWILIGHT BEGINS 05:30
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The next week of nights

Tonight · 12 Aug
80
Excellent
MOON 0%
21:30–04:30
Tomorrow · 13 Aug
77
Excellent
MOON 2%
20:30–04:30
Friday · 14 Aug
84
Excellent
MOON 6%
20:30–04:30
Saturday · 15 Aug
82
Excellent
MOON 13%
03:30–04:30
Sunday · 16 Aug
83
Excellent
MOON 21%
03:30–04:30
Monday · 17 Aug
88
Excellent
MOON 30%
21:30–22:30
Tuesday · 18 Aug
85
Excellent
MOON 39%
03:30–04:30
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Nearby locations

About this forecast

Conditions for Bushehr, Iran 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 →