GoodSeeing
Home › Locations › Atlixco

Atlixco

18.908° N   98.436° W  ·  1846 M
73 /100
PEAK
Worth setting up — 9 hours of workable sky from 21:00.
BEST WINDOW 21:00–06:00 · ASTRO DARK 21:00–05:00 · MOON 1%
Transparency
0.65
Seeing
1.00
Cloud
2%
Moon
1%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
19
20
21
22
23
00
01
02
03
04
05
06
0
26
39
38
53
69
63
66
73
68
65
0
BEST WINDOW
Low cloud
2%
2%
0%
0%
12%
3%
5%
10%
2%
2%
4%
9%
Mid cloud
39%
35%
47%
52%
20%
2%
16%
3%
1%
4%
0%
0%
High cloud
43%
44%
28%
15%
11%
14%
1%
1%
0%
0%
0%
0%
Transparency
0.73
0.65
0.55
0.51
0.46
0.50
0.46
0.42
0.36
0.30
0.31
0.32
Seeing
1.00
0.89
0.89
0.94
0.97
0.94
0.95
0.98
1.00
1.00
0.97
0.94
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
19 Clouded out · 0/100
Starting from
100
Cloud
−52
Transparency
−5
Seeing
−0
Moonlight
−0
Darkness
−43
Score
0
CLOUD 66% LOW 2% MID 39% HIGH 43% SUN -0.0° MOON 4.8° / 0% WIND 2 TEMP 21°
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.

SET UP 20:30 · OBSERVE 21:00–06:00 · 9H · MEAN 59

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

192123010305
HIGH CLOUD CLEARS 21:00TWILIGHT BEGINS 06:00
SET UP 19:30 · OBSERVE 20:00–06:00 · 10H · MEAN 66

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

192123010305
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:30 · OBSERVE 21:00–06:00 · 9H · MEAN 56

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

192123010305
HIGH CLOUD CLEARS 21:00TWILIGHT BEGINS 06:00
SET UP 22:30 · OBSERVE 23:00–06:00 · 7H · MEAN 52

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

192123010305
CLOUD BREAKS 23:00TWILIGHT BEGINS 06:00
SET UP 20:30 · OBSERVE 21:00–06:00 · 9H · MEAN 60

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

192123010305
HIGH CLOUD CLEARS 21:00TWILIGHT BEGINS 06:00
Advertisement
Reserved

The next week of nights

Tonight · 12 Aug
73
Good
MOON 0%
21:00–06:00
Tomorrow · 13 Aug
47
Fair
MOON 3%
21:00–03:00
Friday · 14 Aug
63
Good
MOON 7%
21:00–01:00
Saturday · 15 Aug
52
Fair
MOON 15%
00:00–01:00
Sunday · 16 Aug
63
Good
MOON 23%
00:00–01:00
Monday · 17 Aug
65
Good
MOON 32%
00:00–01:00
Tuesday · 18 Aug
60
Good
MOON 42%
00:00–01:00
Advertisement
Reserved

Nearby locations

About this forecast

Conditions for Atlixco, Mexico 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 →