Böcker av Jermain Gildersleeve Porter

Ce catalogue recense les étoiles dont le mouvement propre a été détecté. Il a été publié en 1936 par Elliott Smith, Everett Irving Yowell et Jermain Gildersleeve Porter. Il est aujourd'hui considéré comme un document de référence pour les astronomes et est utilisé dans des travaux de recherche en astrophysiqueThis work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.