The Draper Catalogue of Stellar Spectra - photograhed with the 8-inch Bache telescope as a part o...
This groundbreaking work by the Harvard College Observatory details the remarkable technical adva...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
Annals of the Astronomical Observatory of Harvard College; v.48 no.4
This work has been selected by scholars as being culturally important, and is part of the knowled...
The Draper Catalogue of Stellar Spectra Photograhed With the 8-inch Bache Telescope as a Part of ...
The Draper Catalogue of Stellar Spectra Photograhed With the 8-inch Bache Telescope as a Part of ...
Annals Of The Astronomical Observatory Of Harvard College; Volume 26
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
This book is a valuable resource for astronomers, containing detailed observations and measuremen...
This groundbreaking work by the Harvard College Observatory details the remarkable technical adva...