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Khomām

37.390° N   49.658° E
32 /100
PEAK
Nothing usable opens up tonight.
NO USABLE WINDOW · ASTRO DARK 21:30–04:30 · MOON 0%
Transparency
0.64
Seeing
1.00
Cloud
13%
Moon
0%

Poor tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
20
21
22
23
00
01
02
03
04
05
60
32
26
20
19
24
12
20
4
0
Low cloud
4%
2%
1%
1%
0%
0%
0%
0%
0%
0%
Mid cloud
5%
19%
28%
43%
51%
47%
74%
58%
82%
30%
High cloud
4%
95%
88%
91%
100%
82%
96%
83%
89%
20%
Transparency
0.64
0.57
0.23
0.19
0.44
0.41
0.40
0.38
0.34
0.35
Seeing
0.98
1.00
1.00
0.98
0.97
1.00
1.00
1.00
0.88
0.86
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
20 Good · 60/100
Starting from
100
Cloud
−10
Transparency
−13
Seeing
−0
Moonlight
−0
Darkness
−17
Score
60
CLOUD 13% LOW 4% MID 5% HIGH 4% SUN -15.4° MOON -13.9° / 0% WIND 2 TEMP 28°
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 20:00 · OBSERVE 20:30–21:30 · 1H · MEAN 53

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

2022000204
CLOUD RETURNS 21:30
SET UP 20:00 · OBSERVE 20:30–21:30 · 1H · MEAN 79

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

2022000204
CLOUD RETURNS 21:30MOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:00 · OBSERVE 20:30–21:30 · 1H · MEAN 55

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

2022000204
CLOUD RETURNS 21:30
SET UP 20:00 · OBSERVE 20:30–21:30 · 1H · MEAN 48

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

2022000204
CLOUD RETURNS 21:30
SET UP 20:00 · OBSERVE 20:30–21:30 · 1H · MEAN 55

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

2022000204
CLOUD RETURNS 21:30
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The next week of nights

Tonight · 12 Aug
32
Poor
MOON 0%
Tomorrow · 13 Aug
71
Good
MOON 2%
23:30–02:30
Friday · 14 Aug
2
Clouded out
MOON 6%
Saturday · 15 Aug
23
Poor
MOON 13%
Sunday · 16 Aug
0
Clouded out
MOON 21%
Monday · 17 Aug
75
Excellent
MOON 30%
03:30–04:30
Tuesday · 18 Aug
86
Excellent
MOON 39%
21:30–22:30
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About this forecast

Conditions for Khomām, Iran 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 →