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Talattala

8.874° N   76.672° E  ·  37 M
45 /100
PEAK
Marginal, but there is a 1 hour gap from 00:30.
BEST WINDOW 00:30–01:30 · ASTRO DARK 22:30–05:30 · MOON 0%
Transparency
0.23
Seeing
0.95
Cloud
43%
Moon
0%

Fair tonight

Hour by hour, local to Talattala. 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
24
31
45
0
6
0
19
14
0
BEST WINDOW
Low cloud
42%
22%
14%
100%
74%
100%
38%
22%
100%
Mid cloud
18%
21%
10%
23%
54%
49%
19%
10%
9%
High cloud
35%
49%
27%
38%
55%
76%
79%
66%
95%
Transparency
0.10
0.23
0.21
0.10
0.10
0.10
0.20
0.20
0.19
Seeing
0.91
0.94
0.95
0.92
0.83
0.80
0.84
0.81
0.86
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 · 24/100
Starting from
100
Cloud
−61
Transparency
−14
Seeing
−1
Moonlight
−0
Darkness
−0
Score
24
CLOUD 67% LOW 42% MID 18% HIGH 35% SUN -52.1° MOON -50.6° / 0% WIND 3 TEMP 25°
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
When a clear gap is worth driving for

Ask how long the gap is relative to your setup time and your exposure length. A two-hour gap is a real session for a visual observer and close to worthless for someone doing four-minute subs on a target that needs three hours.

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 00:30–01:30 · 1H · MEAN 44

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

2200020406
HIGH CLOUD CLEARS 00:30CLOUD RETURNS 01:30
SET UP 23:00 · OBSERVE 23:30–01:30 · 2H · MEAN 46

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

2200020406
CLOUD RETURNS 01:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 00:00 · OBSERVE 00:30–01:30 · 1H · MEAN 39

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

2200020406
HIGH CLOUD CLEARS 00:30CLOUD RETURNS 01:30
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 43%
SET UP 00:00 · OBSERVE 00:30–01:30 · 1H · MEAN 44

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

2200020406
HIGH CLOUD CLEARS 00:30CLOUD RETURNS 01:30
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The next week of nights

Tonight · 12 Aug
45
Fair
MOON 0%
00:30–01:30
Tomorrow · 13 Aug
15
Poor
MOON 2%
Friday · 14 Aug
45
Fair
MOON 6%
20:30–21:30
Saturday · 15 Aug
3
Clouded out
MOON 13%
Sunday · 16 Aug
18
Poor
MOON 21%
Monday · 17 Aug
9
Clouded out
MOON 30%
Tuesday · 18 Aug
50
Fair
MOON 39%
23:30–00:30
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About this forecast

Conditions for Talattala, 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 →