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Ţalkhā

31.054° N   31.378° E  ·  7 M
70 /100
PEAK
Worth setting up — 5 hours of workable sky from 21:00.
BEST WINDOW 21:00–02:00 · ASTRO DARK 22:00–05:00 · MOON 0%
Transparency
0.51
Seeing
1.00
Cloud
6%
Moon
0%

Good tonight

Hour by hour, local to Ţalkhā. 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
06
62
65
64
70
61
30
27
40
39
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
1%
5%
4%
Mid cloud
8%
16%
14%
6%
20%
65%
70%
50%
38%
3%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.51
0.47
0.41
0.38
0.35
0.32
0.32
0.34
0.32
0.31
Seeing
0.82
0.82
0.85
0.89
0.97
1.00
0.97
0.96
1.00
1.00
Moon clear
down
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
21 Good · 62/100
Starting from
100
Cloud
−7
Transparency
−18
Seeing
−3
Moonlight
−0
Darkness
−10
Score
62
CLOUD 8% LOW 0% MID 8% HIGH 0% SUN -16.3° MOON -14.6° / 0% WIND 4 TEMP 29°
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
Conditions for planets and the Moon

Seeing is everything. Darkness and moonlight barely matter, and a hazy, humid night that ruins deep-sky work is often the steadiest night of the year for planetary detail.

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 20:30 · OBSERVE 21:00–02:00 · 5H · MEAN 65

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

2123010305
CLOUD RETURNS 02:00
SET UP 20:30 · OBSERVE 21:00–03:00 · 6H · MEAN 68

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

2123010305
MOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:30 · OBSERVE 21:00–02:00 · 5H · MEAN 62

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

2123010305
CLOUD RETURNS 02:00
SET UP 20:30 · OBSERVE 21:00–02:00 · 5H · MEAN 53

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

2123010305
CLOUD RETURNS 02:00
SET UP 20:30 · OBSERVE 21:00–02:00 · 5H · MEAN 68

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

2123010305
CLOUD RETURNS 02:00
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The next week of nights

Tonight · 12 Aug
70
Good
MOON 0%
21:00–02:00
Tomorrow · 13 Aug
89
Excellent
MOON 2%
21:00–06:00
Friday · 14 Aug
78
Excellent
MOON 6%
21:00–06:00
Saturday · 15 Aug
73
Good
MOON 13%
21:00–22:00
Sunday · 16 Aug
72
Good
MOON 21%
21:00–22:00
Monday · 17 Aug
78
Excellent
MOON 30%
03:00–04:00
Tuesday · 18 Aug
68
Good
MOON 39%
21:00–22:00
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Nearby locations

About this forecast

Conditions for Ţalkhā, Egypt 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 →