George Ellery Hale Title George Ellery Hale Collection Items Hale using Mount Wilson Observatory’s solar spectrograph Solar prominence spectra Kenwood Observatory spectroheliograph Spectroheliogram Solar prominence spectroheliogram Solar prominence spectroheliogram Kenwood Astrophysical Observatory George Ellery Hale at his desk Private H. M. Hubbard Pass Card View all 9 items
