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Bilāsipāra

26.233° N   90.234° E  ·  38 M
60 /100
PEAK
Worth setting up — 3 hours of workable sky from 00:30.
BEST WINDOW 00:30–03:30 · ASTRO DARK 21:30–04:30 · MOON 0%
Transparency
0.25
Seeing
0.99
Cloud
16%
Moon
0%

Good tonight

Hour by hour, local to Bilāsipāra. 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
27
19
18
38
60
39
25
5
0
BEST WINDOW
Low cloud
1%
1%
1%
6%
3%
7%
11%
1%
10%
Mid cloud
18%
59%
40%
19%
9%
11%
20%
1%
11%
High cloud
88%
66%
97%
54%
6%
48%
82%
35%
46%
Transparency
0.10
0.10
0.10
0.24
0.25
0.10
0.10
0.10
0.10
Seeing
0.99
0.96
0.81
0.92
0.96
0.95
0.85
0.83
0.83
Moon clear
down
down
down
down
down
down
down
down
0%
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 Poor · 27/100
Starting from
100
Cloud
−57
Transparency
−15
Seeing
−0
Moonlight
−0
Darkness
−0
Score
27
CLOUD 91% LOW 1% MID 18% HIGH 88% SUN -38.9° MOON -37.5° / 0% WIND 2 TEMP 29°
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 00:00 · OBSERVE 00:30–03:30 · 3H · MEAN 45

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

2123010305
HIGH CLOUD CLEARS 00:30CLOUD RETURNS 03:30
SET UP 00:00 · OBSERVE 00:30–03:30 · 3H · MEAN 55

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

2123010305
HIGH CLOUD CLEARS 00:30CLOUD RETURNS 03:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 01:00 · OBSERVE 01:30–02:30 · 1H · MEAN 55

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

2123010305
HIGH CLOUD CLEARS 01:30CLOUD RETURNS 02:30
SET UP 01:00 · OBSERVE 01:30–02:30 · 1H · MEAN 45

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

2123010305
HIGH CLOUD CLEARS 01:30CLOUD RETURNS 02:30
SET UP 01:00 · OBSERVE 01:30–03:30 · 2H · MEAN 50

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

2123010305
HIGH CLOUD CLEARS 01:30CLOUD RETURNS 03:30
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The next week of nights

Tonight · 12 Aug
60
Good
MOON 0%
00:30–03:30
Tomorrow · 13 Aug
41
Fair
MOON 2%
19:30–21:30
Friday · 14 Aug
38
Fair
MOON 6%
03:30–04:30
Saturday · 15 Aug
5
Clouded out
MOON 13%
Sunday · 16 Aug
16
Poor
MOON 21%
Monday · 17 Aug
1
Clouded out
MOON 30%
Tuesday · 18 Aug
18
Poor
MOON 39%
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About this forecast

Conditions for Bilāsipāra, 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 →