eclipses.app

Press kit — Eclipses

Verified data, maps and methodology for press coverage of the August 12, 2026 total solar eclipse in Spain.

149

cities see the entire totality above the real horizon

87

more fall just short, within one percentage point of totality

3

spots in Galicia keep the Sun above the horizon through the end of the partial phase (C4)

The “clean eclipse” cities

In Spain, 149 cities and 3,533 viewpoints see the entire totality above the real terrain horizon, not just the geometric one. Sorted by horizon margin.

#CityRegionPopulationElevationObscurationDelta
1Oleirosgalicia35.559127 m100%+11.81°
2Lalíngalicia20.158552 m100%+11.09°
3Carballogalicia31.261111 m100%+10.70°
4A Coruñagalicia250.43822 m100%+10.11°
5Lugogalicia98.025465 m100%+9.77°
6Naróngalicia37.71223 m100%+9.56°
7Cambregalicia23.23149 m100%+9.47°
8Gijónasturias271.78022 m100%+9.21°
9Oviedoasturias220.027237 m100%+9.04°
10Leóncastilla-y-leon124.772844 m100%+8.88°
11Zamoracastilla-y-leon61.827662 m100%+8.68°
12Ponferradacastilla-y-leon68.736519 m100%+8.62°
13Avilésasturias78.71526 m100%+8.47°
14Ferrolgalicia66.79924 m100%+8.31°
15Medina del Campocastilla-y-leon21.540721 m100%+8.14°

Downloads

Data by region (JSON)

Methodology

  • Astronomy: high-precision planetary ephemerides with topocentric eclipse solving, at the real elevation of the point and with the most recently published Earth rotation value.
  • Terrain horizon: 1,440 rays (one every 0.25°) over the DEM, followed from 0.5 to 100 km and grouped into 6 distance bands, with Earth-curvature and refraction correction. Without a local DEM: 72 azimuths × 11 distances via remote providers.
  • Dual verdict: primary (C3 if totality / peak otherwise) + partialEnd (C4).
  • Open data: anyone can reproduce the computations with the public calculator.

Solar eclipses in Spain 2026-2028

Primary source: NASA Five Millennium Canon of Solar Eclipses (Espenak/Meeus). γ and magnitude verified against our own independent calculation — diff <0.001.

DateKindγMagnitudeCentral durationVisibility
2026-08-12Total0.89781.03862 min 18 sTotality: northern Spain (Galicia, Asturias, Cantabria, La Rioja, Aragón, Catalonia, Balearics)
2027-08-02Total0.14211.07906 min 23 sTotality: southern Spain (Andalusia, Ceuta); partial elsewhere
2028-01-26Annular0.39010.9208Annular in southern Northern Hemisphere; partial in Spain (local midday)

PRO Astronomía — astronomer-grade tool

14,99 €one-time · lifetime access for the eclipse cycle
  • NASA Besselian elements (x, y, d, μ, l₁, l₂) downloadable as JSON.
  • Stellarium .ssc export: runs directly in the open-source planetarium.
  • Night planner: Milky Way, Perseids, lunar phase, astronomical twilight window.
  • Global visibility map and topocentric contacts (C1-C4) panel.
  • Messier catalog + 88 IAU constellations filtered by local horizon.

Other tiers: Eclipse Pass (€24.99) bundles PRO Astronomía + PRO Photographer + PRO Traveler. Free includes the public calculator with real DEM horizon.

Quotes for editorial use

“The real value isn't knowing which cities fall inside the path of totality on paper, but calculating whether the real horizon — a mountain, a building, a tree — blocks the Sun before the eclipse ends. That's the difference between a geometric map and one you can actually plan a trip around.”

Sergio Nieto, founder of Eclipses.app

“Knowing whether the Sun is up isn't enough — we also need to know if a hill or building hides it. That's why we sample a digital elevation model 360° per location, not just the geometric horizon.”

On DEM-aware methodology

“Spain hosts three solar eclipses in under 18 months (Aug 2026, Aug 2027, Jan 2028). It's the best astronomical-outreach window in a generation.”

Further quotes or interviews on request. Typical response within 24 working hours.

Brand kit

Color palette

#0f172aBackground
#ffb86bEclipse accent
#fbbf24PRO Astronomía
#10b981Visible
#f97316Marginal
#ef4444Hidden

Contact

For interviews, custom data cuts (by region, province or city) or extra quotes: [email protected].

Typical response time: 24 working hours. Mark same-day pieces as urgent in the subject.