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Maithon

23.780° N   86.810° E  ·  133 M
39 /100
PEAK
Marginal, but there is a 3 hours gap from 01:30.
BEST WINDOW 01:30–04:30 · ASTRO DARK 22:30–04:30 · MOON 0%
Transparency
0.24
Seeing
1.00
Cloud
56%
Moon
0%

Fair tonight

Hour by hour, local to Maithon. 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
31
22
28
39
39
37
19
0
BEST WINDOW
Low cloud
2%
20%
5%
7%
2%
13%
2%
3%
Mid cloud
2%
16%
20%
10%
2%
6%
8%
9%
High cloud
97%
99%
87%
62%
73%
65%
52%
23%
Transparency
0.24
0.23
0.23
0.23
0.22
0.22
0.22
0.22
Seeing
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
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 · 31/100
Starting from
100
Cloud
−55
Transparency
−14
Seeing
−0
Moonlight
−0
Darkness
−0
Score
31
CLOUD 97% LOW 2% MID 2% HIGH 97% SUN -46.8° MOON -45.4° / 0% WIND 2 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 01:00 · OBSERVE 01:30–04:30 · 3H · MEAN 36

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

22000204
HIGH CLOUD CLEARS 01:30TWILIGHT BEGINS 04:30
SET UP 01:00 · OBSERVE 01:30–05:30 · 4H · MEAN 45

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

22000204
HIGH CLOUD CLEARS 01:30TWILIGHT BEGINS 05:30MOONLIGHT 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.

22000204
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

22000204
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

22000204
CONDITIONS STAY BELOW THE USABLE THRESHOLD
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The next week of nights

Tonight · 12 Aug
39
Fair
MOON 0%
01:30–04:30
Tomorrow · 13 Aug
25
Poor
MOON 2%
Friday · 14 Aug
29
Poor
MOON 6%
Saturday · 15 Aug
10
Clouded out
MOON 13%
Sunday · 16 Aug
29
Poor
MOON 21%
Monday · 17 Aug
4
Clouded out
MOON 30%
Tuesday · 18 Aug
23
Poor
MOON 39%
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Nearby locations

About this forecast

Conditions for Maithon, India 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 →