Rule
Dark Skies
Breckenridge - Dark Skies - Rocky Mountains
Silverthorne, Colorado, 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/Denver
Next opportunity
Good Dark Skies
Breckenridge
Today · 13:00–14:00 · 1h window
Medium confidence
64%
☁️Total Cloud Coverage17.6%
🌕Moon Illumination68.4%
Pristine Dark Skies (pristine)
Breckenridge
Tomorrow · 10:00–16:00
☁️Total Cloud Coverage:0-4.5%
Medium
Pristine Dark Skies (pristine) at Sunset
Breckenridge
Tomorrow · 16:00–17:00
☁️Total Cloud Coverage:0%
High
Pristine Dark Skies (pristine)
Breckenridge
Tomorrow · 17:00–19:00
☁️Total Cloud Coverage:0-4.8%
Medium
Excellent Dark Skies (pristine)
Breckenridge
Tomorrow · 21:00–22:00
☁️Total Cloud Coverage:7.1%
Medium
Good Dark Skies
Breckenridge
Tomorrow · 23:00–24:00
☁️Total Cloud Coverage:16.7%
Medium
Dark Skies
Breckenridge
Mon, Feb 9 · 24:00–01:00
☁️Total Cloud Coverage:5%
Medium
+8 more windows in the next 10 days
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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/Denver | 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° |
|---|---|---|---|---|---|---|
| Sat, Feb 7 | ||||||
| 11:00 | ✓ | 100% | 24134m | 0% | 68% | -14° |
| 12:00 | ✓ | 31% | 24134m | 0% | 68% | -25° |
| 13:00 | ✓ | 18% | 24134m | 0% | 68% | -37° |
| 14:00 | ✓ | 74% | 24134m | 0% | 68% | -48° |
| 15:00 | ✓ | 71% | 24134m | 0% | 68% | -57° |
| 16:00 | ✓ | 76% | 17718m | 0% | 68% | -64° |
| 17:00 | ✓ | 94% | 8510m | 0% | 59% | -66° |
| 18:00 | ✓ | 93% | 13550m | 0% | 59% | -62° |
| 19:00 | ✓ | 64% | 23500m | 0% | 59% | -54° |
| 20:00 | ✓ | 54% | 24134m | 0% | 59% | -43° |
| 21:00 | ✓ | 95% | 24134m | 0% | 59% | -33° |
| 22:00 | ✓ | 96% | 19829m | 0% | 59% | -21° |
| 23:00 | ✓ | 84% | 24134m | 0% | 59% | -11° |
| Sun, Feb 8 | ||||||
| 24:00 | ✓ | 87% | 24135m | 0% | 59% | -0.03° |
| 01:00 | ✓ | 93% | 23066m | 0% | 59% | 9.7° |
| 02:00 | ✓ | 74% | 22859m | 0% | 59% | 18° |
| 03:00 | ✓ | 13% | 22562m | 0% | 59% | 25° |
| 04:00 | ✓ | 14% | 21670m | 0% | 59% | 30° |
| 05:00 | ✓ | 99% | 24127m | 0% | 59% | 32° |
| 06:00 | ✓ | 100% | 24135m | 0% | 59% | 30° |
| 07:00 | ✓ | 99% | 24134m | 0% | 59% | 26° |
| 08:00 | ✓ | 100% | 24135m | 0% | 59% | 20° |
| 09:00 | ✓ | 94% | 24134m | 0% | 59% | 11° |
| 10:00 | ✓ | 4.5% | 24135m | 0% | 59% | 1.5° |
| 11:00 | ✓ | 0% | 24135m | 0% | 59% | -8.9° |
| 12:00 | ✓ | 0% | 24134m | 0% | 59% | -20° |
| 13:00 | ✓ | 0% | 24135m | 0% | 59% | -31° |
| 14:00 | ✓ | 0% | 24135m | 0% | 59% | -42° |
| 15:00 | ✓ | 0% | 24135m | 0% | 59% | -53° |
| 16:00 | ✓ | 0% | 24135m | 0% | 59% | -63° |
| 17:00 | ✓ | 0% | 24135m | 0% | 50% | -70° |
| 18:00 | ✓ | 4.8% | 24134m | 0% | 50% | -70° |
| 19:00 | ✓ | 88% | 24135m | 0% | 50% | -64° |
| 20:00 | ✓ | 97% | 24135m | 0% | 50% | -54° |
| 21:00 | ✓ | 7.1% | 24134m | 0% | 50% | -43° |
| 22:00 | ✓ | 83% | 24134m | 0% | 50% | -32° |
| 23:00 | ✓ | 17% | 24135m | 0% | 50% | -21° |
| Mon, Feb 9 | ||||||
| 24:00 | ✓ | 5% | 24134m | 0% | 50% | -11° |
| 01:00 | ✓ | 4.2% | 24135m | 0% | 50% | -0.48° |
| 02:00 | ✓ | 22% | 24134m | 0% | 50% | 8.7° |
| 03:00 | ✓ | 40% | 24134m | 0% | 50% | 17° |
| 04:00 | ✓ | 45% | 24135m | 0% | 50% | 23° |
| 05:00 | ✓ | 6.5% | 24134m | 0% | 50% | 27° |
| 06:00 | ✓ | 12% | 24134m | 0% | 50% | 28° |
| 07:00 | ✓ | 14% | 24134m | 0% | 50% | 26° |
| 08:00 | ✓ | 76% | 24134m | 0% | 50% | 21° |
| 09:00 | ✓ | 42% | 24135m | 0% | 50% | 14° |
| 10:00 | ✓ | 68% | 24134m | 0% | 50% | 6° |
| 11:00 | ✓ | 5% | 24134m | 0% | 50% | -3.5° |
| 12:00 | ✓ | 5% | 24134m | 0% | 50% | -14° |
| 13:00 | ✓ | 4.5% | 24135m | 0% | 50% | -25° |
| 14:00 | ✓ | 5.6% | 24135m | 0% | 50% | -36° |
| 15:00 | ✓ | 33% | 24135m | 0% | 50% | -47° |
| 16:00 | ✓ | 78% | 24135m | 0% | 50% | -58° |
| 17:00 | ✓ | 100% | 24134m | 0% | 40% | -68° |
| 18:00 | ✓ | 100% | 24134m | 0% | 40% | -74° |
| 19:00 | ✓ | 100% | 24135m | 0% | 40% | -73° |
| 20:00 | ✓ | 100% | 24135m | 0% | 40% | -64° |
| 21:00 | ✓ | 100% | 24135m | 0% | 40% | -54° |
| 22:00 | ✓ | 99% | 24135m | 0% | 40% | -43° |
| 23:00 | ✓ | 99% | 24135m | 0% | 40% | -32° |
| Tue, Feb 10 | ||||||
| 24:00 | ✓ | 85% | 24135m | 0% | 40% | -21° |
| 01:00 | ✓ | 72% | 24135m | 0% | 40% | -11° |
| 02:00 | ✓ | 58% | 24135m | 0% | 40% | -0.79° |
| 03:00 | ✓ | 49% | 24135m | 0% | 40% | 7.9° |
| 04:00 | ✓ | 39% | 24135m | 0% | 40% | 15° |
| 05:00 | ✓ | 30% | 24135m | 0% | 40% | 21° |
| 06:00 | ✓ | 37% | 24135m | 0% | 40% | 24° |
| 07:00 | ✓ | 44% | 24135m | 0% | 40% | 24° |
| 08:00 | ✓ | 52% | 24135m | 0% | 40% | 22° |
| 09:00 | ✓ | 68% | 24135m | 7.4% | 40% | 17° |
| 10:00 | ✓ | 84% | 24135m | 15% | 40% | 10° |
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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