Catalogue of Cometary Orbits 1989 (Sixth Edition)

The sixth edition of the Catalogue of Cometary Orbits was issued in 1989. It contained orbits for 1292 comets observed from -239 to 1989, as well as numerous statistical tables. A limited quantity of the original printing of this catalogue have become available. Complete your astronomical library! The condition is generally excellent: some copies have minor cover fading and/or slight blemishes, but nothing that diminishes the information contained within.