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Capitol Reef National Park

38.200° N   111.170° W  ·  1700 M
59 /100
PEAK
Worth setting up — 4 hours of workable sky from 02:00.
BEST WINDOW 02:00–06:00 · ASTRO DARK 23:00–05:00 · MOON 1%
Transparency
0.50
Seeing
0.93
Cloud
14%
Moon
1%

Good tonight

Hour by hour, local to Capitol Reef National Park. 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
06
07
0
3
19
37
44
32
59
57
55
57
10
0
BEST WINDOW
Low cloud
1%
9%
9%
0%
0%
6%
1%
8%
3%
6%
1%
1%
Mid cloud
14%
25%
44%
23%
27%
30%
13%
14%
24%
14%
2%
1%
High cloud
93%
100%
90%
52%
5%
40%
8%
0%
1%
9%
13%
34%
Transparency
0.58
0.35
0.50
0.21
0.11
0.10
0.36
0.34
0.37
0.44
0.48
0.53
Seeing
0.90
0.93
0.62
0.83
0.75
0.75
0.81
0.85
0.88
0.88
0.92
0.92
Moon clear
0%
down
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 Clouded out · 0/100
Starting from
100
Cloud
−58
Transparency
−7
Seeing
−1
Moonlight
−0
Darkness
−34
Score
0
CLOUD 94% LOW 1% MID 14% HIGH 93% SUN 3.4° MOON 7.4° / 0% WIND 3 TEMP 24°
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.

NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

202200020406
CLOUD HOLDS ABOVE 100%
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 38

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

202200020406
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

202200020406
CLOUD HOLDS ABOVE 100%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

202200020406
CLOUD HOLDS ABOVE 100%
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 36

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

202200020406
TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
59
Good
MOON 0%
02:00–06:00
Tomorrow · 13 Aug
72
Good
MOON 3%
22:00–06:00
Friday · 14 Aug
51
Fair
MOON 7%
22:00–01:00
Saturday · 15 Aug
92
Excellent
MOON 15%
00:00–01:00
Sunday · 16 Aug
83
Excellent
MOON 23%
00:00–01:00
Monday · 17 Aug
87
Excellent
MOON 32%
00:00–01:00
Tuesday · 18 Aug
84
Excellent
MOON 42%
00:00–01:00
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Nearby locations

About this forecast

Conditions for Capitol Reef National Park, Utah, United States 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 →