GoodSeeing
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Katha

24.175° N   96.341° E  ·  102 M
66 /100
PEAK
Worth setting up — 5 hours of workable sky from 23:30.
BEST WINDOW 23:30–04:30 · ASTRO DARK 23:30–04:30 · MOON 0%
Transparency
0.43
Seeing
1.00
Cloud
16%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
23
00
01
02
03
04
05
63
66
51
48
35
27
0
BEST WINDOW
Low cloud
6%
3%
13%
12%
13%
9%
4%
Mid cloud
5%
5%
16%
10%
2%
1%
3%
High cloud
13%
9%
12%
34%
81%
86%
90%
Transparency
0.43
0.40
0.38
0.36
0.33
0.31
0.28
Seeing
0.91
0.91
0.92
0.96
1.00
1.00
1.00
Moon clear
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
23 Good · 63/100
Starting from
100
Cloud
−16
Transparency
−19
Seeing
−1
Moonlight
−0
Darkness
−0
Score
63
CLOUD 22% LOW 6% MID 5% HIGH 13% SUN -49.7° MOON -48.4° / 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.

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 23:00 · OBSERVE 23:30–03:30 · 4H · MEAN 57

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

23010305
CLOUD RETURNS 03:30
SET UP 23:00 · OBSERVE 23:30–05:30 · 6H · MEAN 56

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

23010305
TWILIGHT BEGINS 05:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:00 · OBSERVE 23:30–03:30 · 4H · MEAN 53

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

23010305
CLOUD RETURNS 03:30
SET UP 23:00 · OBSERVE 23:30–02:30 · 3H · MEAN 46

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

23010305
SET UP 23:00 · OBSERVE 23:30–03:30 · 4H · MEAN 57

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

23010305
CLOUD RETURNS 03:30
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The next week of nights

Tonight · 12 Aug
66
Good
MOON 0%
23:30–04:30
Tomorrow · 13 Aug
54
Fair
MOON 2%
20:30–00:30
Friday · 14 Aug
46
Fair
MOON 6%
20:30–00:30
Saturday · 15 Aug
8
Clouded out
MOON 12%
Sunday · 16 Aug
0
Clouded out
MOON 19%
Monday · 17 Aug
11
Clouded out
MOON 28%
Tuesday · 18 Aug
19
Poor
MOON 37%
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About this forecast

Conditions for Katha, Myanmar (Burma) 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 →