Cherry Springs State Park
International Dark Sky Park
Cherry Springs State Park Campground (RV sites with electric)
Phenomena Atlas · Decade tracker
The decade grid
Next peak: Perseids, Aug 12 — in 25 nights. Moon that night: 0% (moonless).
The night the grid was built for
The new Moon lands on the peak date itself (USNO), so the sky stays black all night — the darkest Perseid peak in this entire 10-year grid. NASA cites 50–100 meteors per hour under perfect conditions; real counts run lower, and clear skies are never guaranteed.
Same date, bonus phenomenon: that new Moon crosses the Sun. NASA: “A total solar eclipse will be visible in Greenland, Iceland, Spain, Russia, and a small area of Portugal, while a partial eclipse will be visible in Europe, Africa, North America, the Atlantic Ocean, Arctic Ocean, and Pacific Ocean.” For the US that means a partial eclipse before sunset where visible — certified solar viewers only — then the meteors own the dark.
| Shower · peak night | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |
|---|---|---|---|---|---|---|---|---|---|---|
| Quadrantids≈ Jan 3 | 100% | 15%dark | 37% | 89% | 0%dark | 79% | 71% | 7%dark | 98% | 28% |
| Lyrids≈ Apr 22 | 35% | 96% | 4%dark | 60% | 72% | 1%dark | 92% | 47% | 22% | 100% |
| Eta Aquariids≈ May 5 | 86% | 1%dark | 88% | 47% | 9%dark | 97% | 17% | 45% | 95% | 6%dark |
| Perseids≈ Aug 12 | 0%dark | 82% | 57% | 10%dark | 99% | 25% | 34% | 94% | 3%dark | 67% |
| Orionids≈ Oct 21 | 78% | 61% | 17% | 99% | 30% | 33% | 89% | 2%dark | 63% | 74% |
| Leonids≈ Nov 16 | 43% | 92% | 0%dark | 83% | 66% | 5%dark | 100% | 23% | 27% | 98% |
| Geminids≈ Dec 13 | 19% | 100% | 7%dark | 60% | 88% | 1%dark | 89% | 49% | 8%dark | 97% |
| Ursids≈ Dec 21 | 92% | 35% | 30% | 99% | 13%dark | 58% | 78% | 0%dark | 82% | 49% |
≈ nominal peak nights — real peaks drift about a day year to year; AMS publishes each season's exact calendar.
Moon illumination (fracillum) on each shower's nominal first peak night, computed for the geographic center of the contiguous US (39.83, -98.58, UTC-6).
The where layer
14 agency-cited certified dark-sky places across 8 states — every field guide names its nearest RV base.
International Dark Sky Park
Cherry Springs State Park Campground (RV sites with electric)
International Dark Sky Park
Rio Grande Village RV Park (within the park, full hookups)
International Dark Sky Park
Natural Bridges Campground (no hookups, but RV-accessible up to 26 ft)
International Dark Sky Park
Furnace Creek RV Park (full hookups, inside the park)
International Dark Sky Park
Capitol Reef RV Park (private, just outside the park in Torrey)
International Dark Sky Park
Upper Lehman Creek Campground (RV-accessible sites, no hookups)
International Dark Sky Park
Ruby's Inn RV Park (just outside the park, full hookups)
International Dark Sky Park
Trailer Village RV Park (inside the park, full hookups)
International Dark Sky Park
Jumbo Rocks Campground (no hookups, RV-accessible) or private RV parks in Twentynine Palms
International Dark Sky Park
Chaco Culture Campground (no hookups, RV-accessible up to 30 ft)
International Dark Sky Park
Mackinaw City KOA (full hookups, a short drive away)
International Dark Sky Park
Borrego Springs RV Resort (full hookups)
International Dark Sky Park
Steinaker State Park Campground (RV sites with electric and water)
International Dark Sky Park
Copper Breaks State Park Campground (RV sites with electric and water)
Moon illumination values retrieved from the USNO Astronomical Applications API on July 17, 2026; peak nights per the NASA-cited shower registry. Rates are ideal-condition maxima — real counts vary and clear skies are never guaranteed. Grid refreshes when USNO data or the AMS calendar changes.