Rule
Dark Skies
Fairbanks - Dark Skies - Alaska
Fairbanks, Alaska, United States
Moonless nights with crystal-clear skies for Milky Way shots
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in America/Anchorage
Next opportunity
Dark Skies
Fairbanks
Wed, Jan 14 · 21:00–22:00 · 1h window
Medium confidence
50%
Dark Skies
Fairbanks
Fri, Jan 23 · 17:00–02:00
Low
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 72 hours
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time America/Anchorage | Astronomical Night Any | Total Cloud Coverage ≤ 20.0% | Visibility ≥ 12000.0m | Precipitation Chance ≤ 10.0% | Moon Illumination OR1·B1≤ 35.0% | Moon Altitude OR1·B2≤ 10.0° |
|---|---|---|---|---|---|---|
| Sun, Jan 11 | ||||||
| 08:00 | ✓ | 100% | 140m | 98% | 41% | 8.5° |
| 09:00 | ✓ | 100% | 140m | 93% | 41% | 6.6° |
| 10:00 | ✓ | 100% | 160m | 93% | 41% | 3.4° |
| 11:00 | ✓ | 100% | 160m | 85% | 41% | -1° |
| 12:00 | ✓ | 100% | 160m | 78% | 41% | -6.3° |
| 13:00 | ✓ | 100% | 160m | 60% | 41% | -12° |
| 14:00 | ✓ | 100% | 180m | 50% | 41% | -19° |
| 15:00 | ✓ | 100% | 180m | 40% | 33% | -25° |
| 16:00 | ✓ | 100% | 160m | 30% | 33% | -31° |
| 17:00 | ✓ | 100% | 160m | 30% | 33% | -36° |
| 18:00 | ✓ | 100% | 160m | 25% | 33% | -40° |
| 19:00 | ✓ | 99% | 160m | 25% | 33% | -43° |
| 20:00 | ✓ | 97% | 200m | 25% | 33% | -44° |
| 21:00 | ✓ | 94% | 200m | 23% | 33% | -42° |
| 22:00 | ✓ | 92% | 320m | 18% | 33% | -39° |
| 23:00 | ✓ | 85% | 540m | 18% | 33% | -35° |
| Mon, Jan 12 | ||||||
| 24:00 | ✓ | 76% | 640m | 13% | 33% | -29° |
| 01:00 | ✓ | 78% | 820m | 10% | 33% | -23° |
| 02:00 | ✓ | 43% | 680m | 8% | 33% | -17° |
| 03:00 | ✓ | 23% | 560m | 5% | 33% | -11° |
| 04:00 | ✓ | 16% | 540m | 5% | 33% | -6.2° |
| 05:00 | ✓ | 12% | 480m | 3% | 33% | -1.8° |
| 06:00 | ✓ | 27% | 560m | 0% | 33% | 1.6° |
| 07:00 | ✓ | 42% | 640m | 0% | 33% | 3.7° |
| 08:00 | ✓ | 46% | 680m | 3% | 33% | 4.4° |
| 09:00 | ✓ | 74% | 1100m | 5% | 33% | 3.7° |
| 10:00 | ✓ | 80% | 1140m | 5% | 33% | 1.5° |
| 11:00 | ✓ | 83% | 1200m | 5% | 33% | -1.9° |
| 12:00 | ✓ | 80% | 1140m | 5% | 33% | -6.5° |
| 13:00 | ✓ | 77% | 1300m | 5% | 33% | -12° |
| 14:00 | ✓ | 77% | 1720m | 5% | 33% | -18° |
| 15:00 | ✓ | 78% | 2060m | 3% | 24% | -24° |
| 16:00 | ✓ | 79% | 2120m | 3% | 24% | -30° |
| 17:00 | ✓ | 72% | 2260m | 3% | 24% | -36° |
| 18:00 | ✓ | 64% | 3260m | 3% | 24% | -41° |
| 19:00 | ✓ | 60% | 3620m | 3% | 24% | -45° |
| 20:00 | ✓ | 58% | 3620m | 3% | 24% | -48° |
| 21:00 | ✓ | 66% | 3980m | 3% | 24% | -48° |
| 22:00 | ✓ | 62% | 4440m | 3% | 24% | -46° |
| 23:00 | ✓ | 55% | 4520m | 3% | 24% | -42° |
| Tue, Jan 13 | ||||||
| 24:00 | ✓ | 51% | 4920m | 3% | 24% | -37° |
| 01:00 | ✓ | 48% | 5740m | 2% | 24% | -31° |
| 02:00 | ✓ | 44% | 10720m | 1% | 24% | -25° |
| 03:00 | ✓ | 41% | 13800m | 0% | 24% | -19° |
| 04:00 | ✓ | 70% | 19660m | 0% | 24% | -14° |
| 05:00 | ✓ | 81% | 16340m | 0% | 24% | -8.7° |
| 06:00 | ✓ | 73% | 24140m | 0% | 24% | -4.5° |
| 07:00 | ✓ | 88% | 24140m | 1% | 24% | -1.4° |
| 08:00 | ✓ | 81% | 24140m | 3% | 24% | 0.34° |
| 09:00 | ✓ | 93% | 24140m | 5% | 24% | 0.75° |
| 10:00 | ✓ | 95% | 24140m | 6% | 24% | -0.26° |
| 11:00 | ✓ | 98% | 5660m | 7% | 24% | -2.6° |
| 12:00 | ✓ | 100% | 720m | 8% | 24% | -6.2° |
| 13:00 | ✓ | 98% | 180m | 12% | 24% | -11° |
| 14:00 | ✓ | 97% | 220m | 14% | 24% | -16° |
| 15:00 | ✓ | 96% | 280m | 15% | 16% | -22° |
| 16:00 | ✓ | 94% | 460m | 16% | 16% | -28° |
| 17:00 | ✓ | 91% | 640m | 16% | 16% | -35° |
| 18:00 | ✓ | 91% | 600m | 16% | 16% | -40° |
| 19:00 | ✓ | 89% | 380m | 16% | 16% | -45° |
| 20:00 | ✓ | 92% | 200m | 15% | 16% | -49° |
| 21:00 | ✓ | 100% | 180m | 15% | 16% | -51° |
| 22:00 | ✓ | 100% | 220m | 15% | 16% | -50° |
| 23:00 | ✓ | 100% | 620m | 14% | 16% | -48° |
| Wed, Jan 14 | ||||||
| 24:00 | ✓ | 100% | 380m | 13% | 16% | -44° |
| 01:00 | ✓ | 100% | 180m | 13% | 16% | -39° |
| 02:00 | ✓ | 100% | 360m | 13% | 16% | -33° |
| 03:00 | ✓ | 100% | 480m | 13% | 16% | -27° |
| 04:00 | ✓ | 100% | 200m | 14% | 16% | -21° |
| 05:00 | ✓ | 100% | 180m | 16% | 16% | -15° |
| 06:00 | ✓ | 100% | 400m | 18% | 16% | -10° |
| 07:00 | ✓ | 100% | 360m | 21% | 16% | -6.4° |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.
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