GoodSeeing
Home › Locations › Hartīshēk

Hartīshēk

9.157° N   43.354° E  ·  1612 M
72 /100
PEAK
Worth setting up — 8 hours of workable sky from 21:00.
BEST WINDOW 21:00–05:00 · ASTRO DARK 21:00–05:00 · MOON 0%
Transparency
0.83
Seeing
0.63
Cloud
4%
Moon
0%

Good tonight

Hour by hour, local to Hartīshēk. 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
39
59
54
53
67
72
58
59
42
0
BEST WINDOW
Low cloud
0%
1%
1%
3%
0%
0%
4%
0%
3%
2%
Mid cloud
20%
5%
16%
35%
16%
4%
20%
20%
19%
8%
High cloud
79%
47%
40%
4%
0%
0%
0%
0%
0%
0%
Transparency
0.78
0.83
0.82
0.81
0.78
0.75
0.72
0.70
0.68
0.66
Seeing
0.63
0.60
0.55
0.54
0.40
0.32
0.32
0.30
0.28
0.30
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 Fair · 39/100
Starting from
100
Cloud
−53
Transparency
−4
Seeing
−4
Moonlight
−0
Darkness
−0
Score
39
CLOUD 83% LOW 0% MID 20% HIGH 79% SUN -36.7° MOON -34.8° / 0% WIND 6 TEMP 21°
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
Transparency vs seeing

Transparency is how much light gets through the atmosphere. Seeing is how steady it is. They are independent, they often move in opposite directions, and which one matters depends entirely on what you are pointing at.

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 60

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

2123010305
TWILIGHT BEGINS 06:00
SET UP 21:30 · OBSERVE 22:00–06:00 · 8H · MEAN 52

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

2123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 06:00SEEING STAYS SOFT THROUGHOUT
SET UP 21:30 · OBSERVE 22:00–06:00 · 8H · MEAN 62

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

2123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 06:00
SET UP 21:30 · OBSERVE 22:00–06:00 · 8H · MEAN 51

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

2123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 06:00
SET UP 21:30 · OBSERVE 22:00–06:00 · 8H · MEAN 65

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

2123010305
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 06:00
Advertisement
Reserved

The next week of nights

Tonight · 12 Aug
72
Good
MOON 0%
21:00–05:00
Tomorrow · 13 Aug
65
Good
MOON 2%
00:00–05:00
Friday · 14 Aug
83
Excellent
MOON 6%
20:00–01:00
Saturday · 15 Aug
72
Good
MOON 13%
03:00–04:00
Sunday · 16 Aug
77
Excellent
MOON 21%
03:00–04:00
Monday · 17 Aug
73
Good
MOON 30%
21:00–22:00
Tuesday · 18 Aug
60
Good
MOON 39%
03:00–04:00
Advertisement
Reserved

Nearby locations

About this forecast

Conditions for Hartīshēk, Ethiopia 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 →