Negative Stellar Parallax

Schlesinger's General Catalogue of Stellar Parallaxes: https://babel.hathitrust.org/cgi/pt?id=uva.x001025952&seq=5 Spreadsheets and source code presented in this video: https://drive.google.com/drive/folders/1QMTb6D1n0uSoRiX0bt5MRGmm3LViTgWN?usp=sharing ... https://www.youtube.com/watch?v=q4SLDLGYd3o