Letters to SKY & TELESCOPE

• Top of the World (Which way is up?) - Published (112/1997)
• Hipparchus' Polar Square (Ancient Greek equivalent of our Polaris) - Unpublished (1997)
• New Type of Objects? (Are newly discovered planetes a different kind of objects? ) - Unpublished (1999)
• Backyard Analemma (Unexpected analemma in a private backyard) - Unpublished (2000)
• Asteroids at their Brightest (Perihelion or ascending node?) - Published (6/2000)