| LordSagan ("16 years old science and astronomy enthusiast, from the exception in the darkness of...") | Lucas ("I'm interested in Hobby Astronomy. I'm a apprentice, in my third year of my...") | ||
| Lorne Waters ("I am a 57 yr old Veteran of Desert Shield/ Desert Storm in the Dallas TX area. I have been...") |  | LostEmber | |
| loewe ("Hi, im a student from Germany and would like to help a little bit in scientific...") |  | Late Night Defender ("Linux, BOINC and OSM nerd from Thailand. ESTJ. she/they.") | |
| lc ("test") | LobaDK ("Someone who loves space (Play Elite: Dangerous a lot). I can't learn astronomy or math...") | ||
| L1nuS ("Computer Science student Space fan Cat lover") |  | Limuzyna Wrocław ("Jestem osobą która skończyła studia na Uniwersytecie Ekonomicznym oraz...") |
