APSIS
| Date | Clue |
|---|---|
| 2018-07-14 | Either of two extremes in an orbit |
| 2012-01-10 | Extreme point in an orbit |
| 2009-05-17 | Orbital point |
| 2008-09-28 | Orbital point |
| 2005-03-09 | Orbital point |
| 1998-12-13 | Orbital point |
| 1997-07-22 | Orbital point |
| 1997-07-20 | Orbital point |
| 1996-12-15 | Orbital extreme |
| 1996-08-13 | Architectural recess |
| 1994-11-23 | Architectural projection |
| 1994-09-26 | Extreme point in an orbit |
| 1994-06-17 | Higher_____ (orbital point) |
| 1994-01-30 | Point in orbit |