GoodSeeing
Home › Locations › Xianyang

Xianyang

34.338° N   108.703° E  ·  387 M
45 /100
PEAK
Marginal, but there is a 1 hour gap from 00:00.
BEST WINDOW 00:00–01:00 · ASTRO DARK 00:00–05:00 · MOON 0%
Transparency
0.10
Seeing
1.00
Cloud
36%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
00
01
02
03
04
05
06
45
22
32
36
1
9
0
BEST WINDOW
Low cloud
13%
52%
33%
22%
95%
51%
64%
Mid cloud
11%
17%
20%
28%
66%
57%
90%
High cloud
20%
27%
16%
9%
2%
2%
11%
Transparency
0.10
0.10
0.10
0.10
0.10
0.10
0.10
Seeing
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
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
00 Fair · 45/100
Starting from
100
Cloud
−30
Transparency
−25
Seeing
−0
Moonlight
−0
Darkness
−0
Score
45
CLOUD 36% LOW 13% MID 11% HIGH 20% SUN -39.2° MOON -38.0° / 0% WIND 0 TEMP 22°
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 23:30 · OBSERVE 00:00–01:00 · 1H · MEAN 44

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

00020406
CLOUD RETURNS 01:00
SET UP 01:30 · OBSERVE 02:00–04:00 · 2H · MEAN 44

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

00020406
CLOUD RETURNS 04:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–01:00 · 1H · MEAN 38

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

00020406
CLOUD RETURNS 01:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

00020406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 23:30 · OBSERVE 00:00–01:00 · 1H · MEAN 44

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

00020406
CLOUD RETURNS 01:00
Advertisement
Reserved

The next week of nights

Tonight · 12 Aug
45
Fair
MOON 0%
00:00–01:00
Tomorrow · 13 Aug
71
Good
MOON 1%
21:00–05:00
Friday · 14 Aug
74
Good
MOON 5%
21:00–05:00
Saturday · 15 Aug
70
Good
MOON 10%
02:00–03:00
Sunday · 16 Aug
28
Poor
MOON 19%
Monday · 17 Aug
6
Clouded out
MOON 28%
Tuesday · 18 Aug
67
Good
MOON 37%
02:00–03:00
Advertisement
Reserved

Nearby locations

About this forecast

Conditions for Xianyang, China 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 →