Smeird Astro Weather
Night mission control

Tuesday 29 September 2026

A complete observing plan, from sunset through morning twilight.

Ten-day outlook
Possible imaging0h

No strict three-way overlap

Full darkness8h 31m

Astronomical darkness

Moon-free sky30m

Waning gibbous · 88% lit

Clearest hour2%

At 04:00

Peak seeing7.0/10

Best atmospheric stability

Avg transparency4.8/10

Mean column clarity

Night at a glance

Observing timeline

See exactly where usable sky, full darkness and a moon-free horizon overlap.

No ideal imaging window · green sky, full darkness and moon below do not overlapWaning gibbous · 88% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 55% cloud · seeing 1.0/1004:00 · 2% cloud · seeing 7.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon below horizonMoon above horizon · 88% illuminated
18:4619:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:55
GoodMixedPoorFull darknessMoon above
Hour by hour

Condition matrix

Exact values stay visible; stronger imaging conditions are shown in green.

Local timeHourly forecast
19:0022:0001:0004:00
Imaging qualityCloud + seeing
PoorPoorPoorGood
Total cloudLower is better
100%100%55%2%
SeeingHigher is better
0.0/100.0/101.0/107.0/10
TransparencyHigher is better
3.0/104.0/106.0/106.0/10
PickeringHigher is better
5.0/104.0/105.0/106.0/10
Low cloudLower is better
100%100%55%2%
Mid cloudLower is better
100%4%0%0%
High cloudLower is better
100%0%0%1%
DarknessTwilight stage
NauticalDarkDarkDark
MoonHorizon position
UpUpUpUp
Seeing

Atmospheric steadiness, using cloud, turbulence and low-level wind. Higher values mean sharper potential detail.

Transparency

Clarity through the full air column, influenced by atmospheric moisture. Higher values favour faint targets.

Pickering

Expected light distortion from turbulence, wind and temperature changes aloft. Higher values mean steadier stars.

Astronomy planner

Ten-day night-sky outlook

Scan cloud cover, sunset, sunrise and moon timing to find the strongest observing windows.

Forecast view
TueTuesday 22 September

Cloudy

0hPossible imaging
100%Average cloud
Waxing gibbous · 86%19:03 sunset · 6:44 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaxing gibbous · 86% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
20:00 · 100% cloud · seeing 0.0/1021:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1023:00 · 100% cloud · seeing 0.0/1000:00 · 100% cloud · seeing 0.0/1001:00 · 100% cloud · seeing 0.0/1002:00 · 100% cloud · seeing 0.0/1003:00 · 100% cloud · seeing 0.0/1004:00 · 100% cloud · seeing 0.0/1005:00 · 100% cloud · seeing 0.0/1006:00 · 100% cloud · seeing 0.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 86% illuminatedMoon below horizon
19:0320:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:44
GoodMixedPoorFull darknessMoon above
WedWednesday 23 September

0hPossible imaging
96%Average cloud
Waxing gibbous · 92%19:00 sunset · 6:45 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaxing gibbous · 92% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
20:00 · 100% cloud · seeing 0.0/1021:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1023:00 · 100% cloud · seeing 0.0/1000:00 · 98% cloud · seeing 0.0/1001:00 · 99% cloud · seeing 0.0/1002:00 · 100% cloud · seeing 0.0/1003:00 · 99% cloud · seeing 0.0/1004:00 · 88% cloud · seeing 0.0/1005:00 · 85% cloud · seeing 0.0/1006:00 · 89% cloud · seeing 0.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 92% illuminatedMoon below horizon
19:0019:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:45
GoodMixedPoorFull darknessMoon above
ThuThursday 24 September

Fair

0hPossible imaging
39%Average cloud
Waxing gibbous · 97%18:58 sunset · 6:47 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaxing gibbous · 97% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 87% cloud · seeing 0.0/1020:00 · 79% cloud · seeing 1.0/1021:00 · 75% cloud · seeing 1.0/1022:00 · 67% cloud · seeing 1.0/1023:00 · 57% cloud · seeing 1.0/1000:00 · 31% cloud · seeing 2.0/1001:00 · 17% cloud · seeing 3.0/1002:00 · 12% cloud · seeing 3.0/1003:00 · 18% cloud · seeing 3.0/1004:00 · 10% cloud · seeing 8.0/1005:00 · 1% cloud · seeing 8.0/1006:00 · 0% cloud · seeing 8.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 97% illuminatedMoon below horizon
18:5819:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:47
GoodMixedPoorFull darknessMoon above
FriFriday 25 September

0hPossible imaging
28%Average cloud
Waxing gibbous · 100%18:56 sunset · 6:49 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaxing gibbous · 100% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 5% cloud · seeing 8.0/1020:00 · 0% cloud · seeing 8.0/1021:00 · 0% cloud · seeing 8.0/1022:00 · 31% cloud · seeing 2.0/1023:00 · 84% cloud · seeing 0.0/1000:00 · 76% cloud · seeing 1.0/1001:00 · 53% cloud · seeing 1.0/1002:00 · 80% cloud · seeing 1.0/1003:00 · 0% cloud · seeing 8.0/1004:00 · 0% cloud · seeing 8.0/1005:00 · 0% cloud · seeing 8.0/1006:00 · 4% cloud · seeing 8.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 100% illuminatedMoon below horizon
18:5619:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:49
GoodMixedPoorFull darknessMoon above
SatSaturday 26 September

Partly Cloudy

0hPossible imaging
90%Average cloud
Full moon · 100%18:53 sunset · 6:50 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapFull moon · 100% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 100% cloud · seeing 0.0/1004:00 · 0% cloud · seeing 8.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 100% illuminated
18:5319:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:50
GoodMixedPoorFull darknessMoon above
SunSunday 27 September

Showers

0hPossible imaging
100%Average cloud
Full moon · 98%18:51 sunset · 6:52 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapFull moon · 98% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 100% cloud · seeing 0.0/1004:00 · 96% cloud · seeing 0.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 98% illuminated
18:5119:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:52
GoodMixedPoorFull darknessMoon above
MonMonday 28 September

0hPossible imaging
70%Average cloud
Waning gibbous · 94%18:49 sunset · 6:53 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaning gibbous · 94% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 0% cloud · seeing 8.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 100% cloud · seeing 0.0/1004:00 · 100% cloud · seeing 0.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon above horizon · 94% illuminated
18:4919:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:53
GoodMixedPoorFull darknessMoon above
TueTuesday 29 September

Light Rain

0hPossible imaging
77%Average cloud
Waning gibbous · 88%18:46 sunset · 6:55 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaning gibbous · 88% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 55% cloud · seeing 1.0/1004:00 · 2% cloud · seeing 7.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon below horizonMoon above horizon · 88% illuminated
18:4619:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:55
GoodMixedPoorFull darknessMoon above
WedWednesday 30 September

Sunny

0hPossible imaging
9%Average cloud
Waning gibbous · 80%18:44 sunset · 6:57 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaning gibbous · 80% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 3% cloud · seeing 5.0/1022:00 · 3% cloud · seeing 7.0/1001:00 · 3% cloud · seeing 8.0/1004:00 · 67% cloud · seeing 1.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon below horizonMoon above horizon · 80% illuminated
18:4419:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:57
GoodMixedPoorFull darknessMoon above
ThuThursday 1 October

Light Rain

0hPossible imaging
100%Average cloud
Waning gibbous · 71%18:42 sunset · 6:58 sunrise
No ideal imaging window · green sky, full darkness and moon below do not overlapWaning gibbous · 71% illuminated
Sky / seeingCloud and stability
DarknessTwilight levels
MoonAbove or below
19:00 · 100% cloud · seeing 0.0/1022:00 · 100% cloud · seeing 0.0/1001:00 · 100% cloud · seeing 0.0/1004:00 · 100% cloud · seeing 0.0/10
Civil twilightNautical twilightAstronomical twilightAstronomical darknessAstronomical twilightNautical twilightCivil twilight
Moon below horizonMoon above horizon · 71% illuminated
18:4219:0020:0021:0022:0023:0000:0001:0002:0003:0004:0005:0006:0006:58
GoodMixedPoorFull darknessMoon above