Live Sky Report
What Can I See in the Sky Tonight in San Francisco, Heredia Province, Costa Rica?
New Moon moon at 0%, Venus shines at magnitude -4.4. Calculated for 9.99°, -84.13° (America/Costa_Rica).
Visible planets tonight
Venus, Jupiter, Mercury, Saturn, Mars — brightest: Venus at mag -4.4 in Virgo
🔭 Tonight's Sky Report
📍 San Francisco, Heredia Province, Costa Rica — Wednesday, August 12
Tonight's sky above San Francisco, Heredia Province, Costa Rica
San Francisco, Heredia Province, Costa Rica's sky tonight is a real, computable state — every value on this page comes from live NOAA space weather data, live orbital elements for the ISS, and astronomy-engine's ephemeris for the Sun, Moon, and planets.
Above San Francisco, Heredia Province, Costa Rica tonight (9.99°, -84.13°), expect a new moon moon at 0% illumination. The night gives 9.1 hours of true astronomical darkness. At 10.0°, aurora needs a strong storm — roughly Kp 9 or higher — to reach San Francisco, Heredia Province, Costa Rica.
Local sky character in San Francisco
Tropical / equatorial latitudes · northern hemisphere · 1131 m elevation
- The north celestial pole stands 10° above the horizon, so stars within 10° of it never set from here.
- About 58.7% of the whole sky rises above the horizon at some point in the year from this latitude.
- The Milky Way's core in Sagittarius culminates about 51° up, clearing the horizon haze comfortably.
- The Large Magellanic Cloud only reaches about 10.3° altitude, so it is a low, seasonal target rather than a year-round one.
- At 1131 m elevation, roughly 12% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
San Francisco is small enough that local light domes are limited — on a clear, moonless night the Milky Way is realistically within reach.
Best nights this month in San Francisco
Calculated for these coordinates and today's date — not a fixed list.
- 2026-08-12 — Darkest night of the coming month
The Moon is only 0% illuminated, giving the least lunar interference in the next 30 nights — the best window for the Milky Way and faint deep-sky targets from San Francisco, Heredia Province, Costa Rica.
- 2026-08-12 — Perseids peak — up to 100/hour
Radiant in Perseus. Favours the Northern Hemisphere, which includes San Francisco, Heredia Province, Costa Rica. The Moon is 2% lit on peak night, so lunar interference is none.
- 2026-08-27 — Full Moon
A 100%-lit Moon washes out faint objects, but lunar terrain along the limb is at its most striking — plan bright targets and planets instead of deep sky.
San Francisco, Heredia Province, Costa Rica stargazing questions
- What can I see in the sky tonight from San Francisco, Heredia Province, Costa Rica?
- Tonight from San Francisco, Heredia Province, Costa Rica expect a new moon Moon at 0% illumination, with these naked-eye planets above the horizon after dark: Venus, Jupiter, Mercury, Saturn, Mars. The night offers about 9.1 hours of true astronomical darkness.
- Can I see both northern and southern constellations from San Francisco, Heredia Province, Costa Rica?
- Yes — this is the real advantage of an equatorial location. At 10.0° N, about 58.7% of the entire celestial sphere rises at some point in the year, so Polaris-side constellations and the Southern Cross region are both reachable across the seasons.
- How good is the Milky Way from San Francisco, Heredia Province, Costa Rica?
- The Galactic Centre culminates around 51° above the horizon from here, high enough to clear most horizon haze. Local cloud and humidity, not geometry, are usually the limiting factor at tropical latitudes.
- Are there seasons for stargazing in San Francisco, Heredia Province, Costa Rica?
- Night length barely changes at this latitude — twilight is short and the Sun sets steeply, so darkness arrives quickly all year. What changes is which part of the sky is on view after sunset, and, in monsoon-affected regions, how often the sky is clear at all.
- How dark does it actually get in San Francisco, Heredia Province, Costa Rica tonight?
- About 9.1 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.
Nearby cities
Real great-circle distance from San Francisco, Heredia Province, Costa Rica.
- Sky tonight in San Jose, San José, Costa Rica8 km
- Sky tonight in San Jose, San José, Costa Rica8 km
- Sky tonight in San Vicente, San José, Costa Rica9 km
- Sky tonight in Alajuela, Alajuela Province, Costa Rica10 km
- Sky tonight in Curridabat, San José, Costa Rica13 km
- Sky tonight in San Rafael Abajo, San José, Costa Rica25 km
Sky tonight across Costa Rica
Other cities in Costa Rica with live sky reports.
- Sky tonight in Cartago, Cartago Province27 km
- Sky tonight in Atenas, Alajuela Province28 km
- Sky tonight in Naranjo, Alajuela Province30 km
- Sky tonight in Paraiso, Cartago Province33 km
- Sky tonight in Rio Segundo, Alajuela Province34 km
- Sky tonight in Desamparados, Alajuela Province42 km
- Sky tonight in Guapiles, Limón Province45 km
- Sky tonight in Turrialba, Cartago Province50 km
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