Amateur Astronomy, Part 3 Codexery

A source-cited reference to amateur astronomy, part 3

Amateur Astronomy, Part 3

Comet Ikeya–Seki · C/1963 A1 (Ikeya) · C/1964 N1 (Ikeya) · C/1939 H1 (Jurlof–Achmarof–Hassel) · C/1999 H1 (Lee) · C/2018 V1 (Machholz–Fujikawa–Iwamoto) · 141P/Machholz · C/2004 Q2 (Machholz) · C/2023 P1 (Nishimura) · PH1b · Comet Ryves · C/1962 C1 (Seki–Lines) · C/1983 J1 (Sugano–Saigusa–Fujikawa) · C/1975 T2 (Suzuki–Saigusa–Mori) · C/1969 T1 (Tago–Sato–Kosaka) · P/2010 H2 (Vales) · C/1970 K1 (White–Ortiz–Bolelli) · C/1998 P1 (Williams) · Amateur Astronomers Association of Pittsburgh · American Association of Variable Star Observers · American Meteor Society