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Daru

-9.078° S   143.209° E  ·  11 M
25 /100
PEAK
Nothing usable opens up tonight.
NO USABLE WINDOW · ASTRO DARK 04:00–06:00 · MOON 0%
Transparency
0.28
Seeing
0.64
Cloud
89%
Moon
0%

Poor tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
04
05
06
07
25
23
8
0
Low cloud
28%
25%
27%
36%
Mid cloud
0%
2%
2%
0%
High cloud
86%
95%
95%
1%
Transparency
0.28
0.27
0.28
0.28
Seeing
0.64
0.64
0.62
0.60
Moon clear
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
04 Poor · 25/100
Starting from
100
Cloud
−62
Transparency
−11
Seeing
−2
Moonlight
−0
Darkness
−0
Score
25
CLOUD 89% LOW 28% MID 0% HIGH 86% SUN -39.0° MOON -40.8° / 0% WIND 6 TEMP 24°
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.

NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

0406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

0406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

0406
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.

0406
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.

0406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
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The next week of nights

Tonight · 12 Aug
25
Poor
MOON 0%
Tomorrow · 13 Aug
43
Fair
MOON 1%
00:00–03:00
Friday · 14 Aug
49
Fair
MOON 5%
20:00–04:00
Saturday · 15 Aug
64
Good
MOON 8%
04:00–05:00
Sunday · 16 Aug
67
Good
MOON 19%
04:00–05:00
Monday · 17 Aug
42
Fair
MOON 28%
04:00–05:00
Tuesday · 18 Aug
40
Fair
MOON 37%
22:00–23:00
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About this forecast

Conditions for Daru, Papua New Guinea 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 →