GoodSeeing
Galactic core · next 30 nights

Milky Way windows at Exmoor National Park

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 altitude5°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 →

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.