~1 min read
Encyclopedic overview
3 sectionsContents
- Astronomy
- Other
- See also
Janssen may refer to:
== Astronomy == Janssen (lunar crater) Janssen (Martian crater) Janssen (planet), an exoplanet also known as 55 Cancri e
Excerpted from Wikipedia’s “Janssen” article, available under the CC BY-SA 4.0 licence.