diff --git a/kosmorro/i18n/strings.py b/kosmorro/i18n/strings.py
index cb37ede..0ea447e 100644
--- a/kosmorro/i18n/strings.py
+++ b/kosmorro/i18n/strings.py
@@ -15,8 +15,8 @@ def from_event(event: Event, with_description: bool = True) -> Union[None, str]:
             _("Elongation of %s is maximal"),
             lambda e: "{:.3n}°".format(e.details["deg"]),
         ),
-        EventType.PERIGEE: (_("%s is at its perigee"), None),
-        EventType.APOGEE: (_("%s is at its apogee"), None),
+        EventType.PERIGEE: (_("%s is at its periapsis"), None),
+        EventType.APOGEE: (_("%s is at its apoapsis"), None),
     }.get(event.event_type, (None, None))
 
     if string is None: