opposition
notableMars at opposition
Mars reaches opposition, placing it opposite the Sun in Earth's sky. It is above the horizon for much of the night near opposition; apparent brightness and local visibility vary.
Where to look
Opposition is calculated from apparent geocentric ecliptic longitudes; actual altitude, twilight, and visual detectability depend on location.
Technical source record
2.1.19 · 2025-01-16T02:37:35.495Z · retrieved 2026-09-30
Calculated by: Astronomy Engine apparent geocentric ecliptic longitude root search for Mars–Sun opposition; daily brackets refined by bisection.
ObserverExample sky· UTC
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Location accuracy & privacy
City positions are approximate GeoNames city centers. City search is matched on this site and is not sent to analytics. Device and entered coordinates stay in memory only. Only a city ID is remembered or shared. Source: GeoNames, CC BY 4.0.