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Bābol

36.551° N   52.679° E  ·  1 M
57 /100
PEAK
Worth setting up — 3 hours of workable sky from 22:30.
BEST WINDOW 22:30–01:30 · ASTRO DARK 21:30–04:30 · MOON 0%
Transparency
0.48
Seeing
0.95
Cloud
21%
Moon
0%

Good tonight

Hour by hour, local to Bābol. 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
2
56
57
48
18
12
16
5
0
BEST WINDOW
Low cloud
97%
20%
20%
31%
76%
84%
71%
71%
68%
Mid cloud
9%
9%
6%
8%
6%
2%
21%
9%
41%
High cloud
5%
1%
0%
1%
1%
0%
14%
1%
9%
Transparency
0.47
0.48
0.45
0.44
0.44
0.43
0.40
0.36
0.36
Seeing
0.92
0.88
0.85
0.90
0.95
0.94
0.95
0.95
0.99
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 Clouded out · 2/100
Starting from
100
Cloud
−97
Transparency
−1
Seeing
−0
Moonlight
−0
Darkness
−0
Score
2
CLOUD 98% LOW 97% MID 9% HIGH 5% SUN -26.9° MOON -25.3° / 0% WIND 3 TEMP 27°
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 22:00 · OBSERVE 22:30–01:30 · 3H · MEAN 55

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

2123010305
CLOUD BREAKS 22:30CLOUD RETURNS 01:30
SET UP 22:00 · OBSERVE 22:30–01:30 · 3H · MEAN 60

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

2123010305
CLOUD BREAKS 22:30CLOUD RETURNS 01:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 22:00 · OBSERVE 22:30–01:30 · 3H · MEAN 53

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

2123010305
CLOUD BREAKS 22:30CLOUD RETURNS 01:30
SET UP 22:00 · OBSERVE 22:30–01:30 · 3H · MEAN 41

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

2123010305
CLOUD BREAKS 22:30CLOUD RETURNS 01:30
SET UP 22:00 · OBSERVE 22:30–01:30 · 3H · MEAN 54

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

2123010305
CLOUD BREAKS 22:30CLOUD RETURNS 01:30
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The next week of nights

Tonight · 12 Aug
57
Good
MOON 0%
22:30–01:30
Tomorrow · 13 Aug
40
Fair
MOON 2%
23:30–00:30
Friday · 14 Aug
63
Good
MOON 6%
01:30–04:30
Saturday · 15 Aug
2
Clouded out
MOON 13%
Sunday · 16 Aug
28
Poor
MOON 21%
Monday · 17 Aug
73
Good
MOON 30%
21:30–22:30
Tuesday · 18 Aug
74
Good
MOON 39%
21:30–22:30
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Nearby locations

About this forecast

Conditions for Bābol, 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 →