KUON GEO

Hephaestus Fossae

Fossa, fossae · 633.3 km across · 20.84°, 122.85° · Mars
溝・差し渡し約633.3km

WHY THAT NAME · なぜその名前か

Classical albedo feature name.
Source of the name: Greek (Europe) · Approved by the IAU 1973 · Other features named after Greek

SEE IT · 地図で見る

Elevation here was measured by laser from orbit (MOLA), and the night-time infrared comes from THEMIS.
Open the map centred on Hephaestus Fossae

NEAREST NAMED FEATURES · 近くの地名

What stands next to a place tells you what kind of place it is.
Hebrus Valles 谷224 km
Tomini クレーター320 km
Naryn クレーター354 km
Phedra クレーター419 km
Tavua クレーター427 km
Hephaestus Rupēs 崖465 km
Tomari クレーター506 km
Torbay クレーター521 km
Great-circle distances on a sphere of radius 3,396.19 km.
Names and their origins come from the IAU Gazetteer of Planetary Nomenclature (USGS Astrogeology), retrieved 2026-08-14.
All named features ｜ KUON MARS map ｜ About the map ｜ The temperature on Mars ｜ How far away Mars is
DATA: IAU / USGS Astrogeology · NASA MGS MOLA · NASA Mars Odyssey THEMIS