Janssen

Crater, craters · 200.7 km across · -44.96°, 40.82° · the Moon
クレーター・差し渡し約200.7km

WHY THAT NAME · なぜその名前か

Pierre Jules César; French astronomer (1824-1907).

Source of the name: France (Europe) · Approved by the IAU 1935 · Other features named after France

SEE IT · 地図で見る

Elevation here was measured by laser from orbit (LOLA). Nothing is estimated or generated.

Open the map centred on Janssen

SATELLITE CRATERS · 衛星クレーター · 17

Smaller craters that share this name with a letter added. The IAU records them under the same origin, so they are listed here rather than given pages of their own.
この名前に英字を足した小さなクレーターです。由来は親と同じものとして登録されているため、ここに並べています。

Janssen B21.3 km

Janssen C7.2 km

Janssen D28.7 km

Janssen E24.3 km

Janssen F35.2 km

Janssen H9.6 km

Janssen J26.9 km

Janssen K15 km

Janssen L11.8 km

Janssen M15.6 km

Janssen N4.7 km

Janssen P4.1 km

Janssen Q4.9 km

Janssen R22.9 km

Janssen S7 km

Janssen T29 km

Janssen X24.3 km

NEAREST NAMED FEATURES · 近くの地名

What stands next to a place tells you what kind of place it is.

Rimae Janssen 谷（リマ）42 km

Fabricius クレーター71 km

Lockyer クレーター98 km

Metius クレーター149 km

Steinheil クレーター166 km

Brenner クレーター182 km

Dove クレーター206 km

Watt クレーター211 km

Great-circle distances on a sphere of radius 1,737.4 km.

Names and their origins come from the IAU Gazetteer of Planetary Nomenclature (USGS Astrogeology), retrieved 2026-08-14.
All named features ｜ KUON THE MOON map ｜ About the map ｜ Every landing site on the Moon

DATA: IAU / USGS Astrogeology · NASA LRO LOLA