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Sātkhira

22.708° N   89.072° E  ·  11 M
35 /100
PEAK
Marginal, but there is a 1 hour gap from 02:00.
BEST WINDOW 02:00–03:00 · ASTRO DARK 22:00–05:00 · MOON 0%
Transparency
0.27
Seeing
1.00
Cloud
69%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
22
23
00
01
02
03
04
05
06
25
26
28
25
35
30
17
3
0
BEST WINDOW
Low cloud
20%
24%
14%
22%
16%
16%
41%
62%
10%
Mid cloud
3%
1%
2%
2%
9%
6%
27%
34%
27%
High cloud
100%
94%
97%
96%
63%
70%
71%
88%
96%
Transparency
0.27
0.27
0.27
0.26
0.25
0.10
0.10
0.10
0.23
Seeing
0.97
0.96
0.95
1.00
0.98
0.93
0.89
0.94
0.89
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
22 Poor · 25/100
Starting from
100
Cloud
−65
Transparency
−10
Seeing
−0
Moonlight
−0
Darkness
−0
Score
25
CLOUD 100% LOW 20% MID 3% HIGH 100% SUN -40.8° MOON -39.5° / 0% WIND 2 TEMP 28°
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.

NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2200020406
CLOUD NEVER DROPS BELOW 69%
SET UP 01:30 · OBSERVE 02:00–04:00 · 2H · MEAN 40

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

2200020406
HIGH CLOUD CLEARS 02:00MOONLIGHT IGNORED FOR THIS TARGET
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2200020406
CLOUD NEVER DROPS BELOW 69%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2200020406
CLOUD NEVER DROPS BELOW 69%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2200020406
CLOUD NEVER DROPS BELOW 69%
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The next week of nights

Tonight · 12 Aug
35
Fair
MOON 0%
02:00–03:00
Tomorrow · 13 Aug
43
Fair
MOON 2%
20:00–22:00
Friday · 14 Aug
38
Fair
MOON 6%
21:00–22:00
Saturday · 15 Aug
32
Poor
MOON 12%
Sunday · 16 Aug
26
Poor
MOON 19%
Monday · 17 Aug
26
Poor
MOON 28%
Tuesday · 18 Aug
32
Poor
MOON 37%
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About this forecast

Conditions for Sātkhira, Bangladesh 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 →