Galactic core · next 30 nights

Milky Way windows at Elan Valley

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 Sept0.0 h of core visibility in darkness

Highest core altitude4°near 21:20

Usable nights0 / 30Moonlight and cloud still decide image contrast.

Computed local geometry

Core hours after astronomical twilight

19 Septnone61% moon

20 Septnone70% moon

21 Septnone78% moon

22 Septnone85% moon

23 Septnone92% moon

24 Septnone96% moon

25 Septnone99% moon

26 Septnone100% moon

27 Septnone98% moon

28 Septnone94% moon

29 Septnone88% moon

30 Septnone79% moon

1 Octnone69% moon

2 Octnone57% moon

3 Octnone46% moon

4 Octnone34% moon

5 Octnone24% moon

6 Octnone15% moon

7 Octnone8% moon

8 Octnone3% moon

9 Octnone0% moon

10 Octnone0% moon

11 Octnone2% moon

12 Octnone6% moon

13 Octnone12% moon

14 Octnone18% moon

15 Octnone26% moon

16 Octnone35% moon

17 Octnone44% moon

18 Octnone53% moon

No dark core window

At this location and season, the core does not reach 10° during astronomical darkness in the next 30 nights. Check live cloud and transparency →

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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.