Rule
Dark Skies
Delta Junction - Dark Skies - Alaska
Delta Junction, Alaska, United States
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in America/Anchorage
Next opportunity
Excellent Dark Skies (pristine)
Delta Junction
Wed, Mar 11 · 13:00–14:00 · 1h window
Medium confidence
46%
🌛Moon Altitude-18.3°
☁️Total Cloud Coverage5.4%
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72-hour requirements breakdown
What passed or failed, hour by hourOR 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° |
|---|---|---|---|---|---|---|
| Tue, Mar 3 | ||||||
| 16:00 | ✕ | 1.6% | 24134m | 0% | 99% | -17° |
| 17:00 | ✕ | 1.5% | 24134m | 0% | 99% | -12° |
| 18:00 | ✕ | 2.8% | 24135m | 0% | 99% | -6.6° |
| 19:00 | ✕ | 3.3% | 24134m | 0% | 99% | -0.65° |
| 20:00 | ✓ | 3.4% | 24134m | 0% | 99% | 5.5° |
| 21:00 | ✓ | 3.2% | 24134m | 0% | 99% | 11° |
| 22:00 | ✓ | 5% | 24135m | 0% | 99% | 17° |
| 23:00 | ✓ | 5% | 24135m | 0% | 99% | 21° |
| Wed, Mar 4 | ||||||
| 24:00 | ✓ | 19% | 24134m | 0% | 99% | 25° |
| 01:00 | ✓ | 77% | 24135m | 0% | 99% | 26° |
| 02:00 | ✓ | 99% | 24134m | 0% | 99% | 26° |
| 03:00 | ✓ | 100% | 24134m | 0% | 99% | 24° |
| 04:00 | ✓ | 34% | 23500m | 0% | 99% | 21° |
| 05:00 | ✓ | 31% | 24134m | 0% | 99% | 16° |
| 06:00 | ✓ | 33% | 24135m | 0% | 99% | 10° |
| 07:00 | ✓ | 41% | 24135m | 0% | 99% | 4° |
| 08:00 | ✓ | 100% | 24135m | 0% | 99% | -2.6° |
| 09:00 | ✓ | 100% | 24135m | 0% | 99% | -9.1° |
| 10:00 | ✓ | 100% | 24135m | 0% | 99% | -15° |
| 11:00 | ✓ | 100% | 24134m | 0% | 99% | -21° |
| 12:00 | ✓ | 100% | 23032m | 0% | 99% | -25° |
| 13:00 | ✓ | 100% | 24135m | 0% | 99% | -28° |
| 14:00 | ✓ | 100% | 24135m | 0% | 99% | -29° |
| 15:00 | ✕ | 100% | 13181m | 0% | 96% | -28° |
| 16:00 | ✕ | 100% | 5989m | 0% | 96% | -25° |
| 17:00 | ✕ | 100% | 5661m | 0% | 96% | -22° |
| 18:00 | ✕ | 100% | 5664m | 0% | 96% | -16° |
| 19:00 | ✕ | 100% | 6660m | 0% | 96% | -11° |
| 20:00 | ✓ | 73% | 7402m | 0% | 96% | -4.6° |
| 21:00 | ✓ | 63% | 6406m | 0% | 96% | 1.4° |
| 22:00 | ✓ | 63% | 7154m | 0% | 96% | 7.2° |
| 23:00 | ✓ | 59% | 8003m | 0% | 96% | 12° |
| Thu, Mar 5 | ||||||
| 24:00 | ✓ | 65% | 7198m | 0% | 96% | 16° |
| 01:00 | ✓ | 71% | 7560m | 0% | 96% | 19° |
| 02:00 | ✓ | 60% | 10587m | 0% | 96% | 20° |
| 03:00 | ✓ | 60% | 10650m | 0% | 96% | 19° |
| 04:00 | ✓ | 59% | 11080m | 0% | 96% | 17° |
| 05:00 | ✓ | 58% | 11280m | 0% | 96% | 14° |
| 06:00 | ✓ | 54% | 11856m | 0% | 96% | 8.6° |
| 07:00 | ✓ | 50% | 12035m | 0% | 96% | 2.8° |
| 08:00 | ✓ | 51% | 11964m | 0% | 96% | -3.5° |
| 09:00 | ✓ | 51% | 13445m | 0% | 96% | -10° |
| 10:00 | ✓ | 45% | 15467m | 0% | 96% | -17° |
| 11:00 | ✓ | 47% | 18126m | 0% | 96% | -23° |
| 12:00 | ✓ | 61% | 21149m | 0% | 96% | -28° |
| 13:00 | ✓ | 94% | 21810m | 0% | 96% | -32° |
| 14:00 | ✓ | 80% | 22207m | 0% | 96% | -34° |
| 15:00 | ✓ | 71% | 21757m | 0% | 90% | -35° |
| 16:00 | ✓ | 72% | 20582m | 1.6% | 90% | -33° |
| 17:00 | ✓ | 42% | 22901m | 3.3% | 90% | -30° |
| 18:00 | ✓ | 42% | 19005m | 4.9% | 90% | -26° |
| 19:00 | ✓ | 33% | 18462m | 16% | 90% | -20° |
| 20:00 | ✓ | 74% | 8628m | 28% | 90% | -14° |
| 21:00 | ✓ | 82% | 8469m | 39% | 90% | -8.3° |
| 22:00 | ✓ | 94% | 13844m | 26% | 90% | -2.3° |
| 23:00 | ✓ | 100% | 17357m | 13% | 90% | 3.2° |
| Fri, Mar 6 | ||||||
| 24:00 | ✓ | 100% | 16903m | 0% | 90% | 7.8° |
| 01:00 | ✓ | 100% | 20135m | 7.4% | 90% | 11° |
| 02:00 | ✓ | 100% | 20135m | 15% | 90% | 14° |
| 03:00 | ✓ | 100% | 24134m | 22% | 90% | 14° |
| 04:00 | ✓ | 100% | 24134m | 29% | 90% | 13° |
| 05:00 | ✓ | 100% | 24135m | 37% | 90% | 11° |
| 06:00 | ✓ | 100% | 24134m | 44% | 90% | 6.7° |
| 07:00 | ✓ | 100% | 24134m | 57% | 90% | 1.6° |
| 08:00 | ✓ | 100% | 24134m | 71% | 90% | -4.2° |
| 09:00 | ✓ | 100% | 21220m | 84% | 90% | -11° |
| 10:00 | ✓ | 100% | 5236m | 88% | 90% | -17° |
| 11:00 | ✓ | 100% | 18066m | 92% | 90% | -24° |
| 12:00 | ✓ | 100% | 24134m | 95% | 90% | -30° |
| 13:00 | ✓ | 100% | 24134m | 95% | 90% | -35° |
| 14:00 | ✓ | 100% | 24135m | 96% | 90% | -38° |
| 15:00 | ✓ | 59% | 7439m | 96% | 84% | -40° |
| 16:00 | ✓ | 79% | 15472m | 85% | 84% | -40° |
| 17:00 | ✓ | 100% | 23137m | 75% | 84% | -38° |
| 18:00 | ✓ | 100% | 23580m | 64% | 84% | -34° |
| 19:00 | ✓ | 91% | 22470m | 67% | 84% | -30° |
| 20:00 | ✓ | 99% | 21015m | 71% | 84% | -24° |
| 21:00 | ✓ | 100% | 21573m | 74% | 84% | -18° |
| 22:00 | ✓ | 99% | 15853m | 77% | 84% | -12° |
| 23:00 | ✓ | 98% | 10134m | 79% | 84% | -5.7° |
| Sat, Mar 7 | ||||||
| 24:00 | ✓ | 97% | 4414m | 82% | 84% | -0.5° |
| 01:00 | ✓ | 98% | 7046m | 78% | 84% | 3.8° |
| 02:00 | ✓ | 99% | 9678m | 75% | 84% | 6.9° |
| 03:00 | ✓ | 100% | 12310m | 72% | 84% | 8.6° |
| 04:00 | ✓ | 100% | 10895m | 66% | 84% | 8.8° |
| 05:00 | ✓ | 100% | 9480m | 61% | 84% | 7.4° |
| 06:00 | ✓ | 100% | 8064m | 56% | 84% | 4.6° |
| 07:00 | ✓ | 100% | 5794m | 65% | 84% | 0.48° |
| 08:00 | ✓ | 100% | 3524m | 74% | 84% | -4.6° |
| 09:00 | ✓ | 100% | 1254m | 83% | 84% | -11° |
| 10:00 | ✓ | 100% | 946m | 76% | 84% | -17° |
| 11:00 | ✓ | 100% | 638m | 70% | 84% | -23° |
| 12:00 | ✓ | 99% | 330m | 64% | 84% | -30° |
| 13:00 | ✓ | 99% | 337m | 73% | 84% | -36° |
| 14:00 | ✓ | 100% | 343m | 82% | 84% | -40° |
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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