GoodSeeing
Galactic core · next 30 nights

Milky Way windows at Alice Springs

This tracks the Sagittarius galactic core only when the Sun is at least 18° below the horizon and the core is at least 10° high. It is geometry, not a weather promise.

Best night19 Sept4.7 h of core visibility in darkness
Highest core altitude68°near 20:00
Usable nights30 / 30Moonlight and cloud still decide image contrast.
Computed local geometry

Core hours after astronomical twilight

19 Sept4.7 h57% moon
20 Sept4.7 h66% moon
21 Sept4.7 h75% moon
22 Sept4.7 h83% moon
23 Sept4.3 h90% moon
24 Sept4.3 h95% moon
25 Sept4.3 h98% moon
26 Sept4.3 h100% moon
27 Sept4.3 h99% moon
28 Sept4.0 h96% moon
29 Sept4.0 h90% moon
30 Sept4.0 h82% moon
1 Oct4.0 h73% moon
2 Oct4.0 h62% moon
3 Oct3.7 h50% moon
4 Oct3.7 h38% moon
5 Oct3.7 h27% moon
6 Oct3.7 h18% moon
7 Oct3.7 h10% moon
8 Oct3.3 h4% moon
9 Oct3.3 h1% moon
10 Oct3.3 h0% moon
11 Oct3.3 h1% moon
12 Oct3.3 h5% moon
13 Oct3.0 h10% moon
14 Oct3.0 h16% moon
15 Oct3.0 h23% moon
16 Oct3.0 h32% moon
17 Oct3.0 h41% moon
18 Oct2.7 h50% moon
20:00–00:40

This is the widest geometric window in the next month. Check the live forecast before travelling, then favor the darkest moonless portion. Check live cloud and transparency →

Keep planning

Same coordinates, different question

Moon

Moonless nights

Find the longest uninterrupted dark windows.

Core

Milky Way

See when the galactic core clears the horizon after dark.

−18°

Astronomical darkness

Track true darkness, including polar twilight.