Browse Items (9 total) Browse All Search Items Collection: George Ellery Hale Sort by: Title Creator Date Added George Ellery Hale at his desk Hale using Mount Wilson Observatory’s solar spectrograph Kenwood Astrophysical Observatory Kenwood Observatory spectroheliograph Private H. M. Hubbard Pass Card Solar prominence spectra Solar prominence spectroheliogram Solar prominence spectroheliogram Spectroheliogram Output Formats atom, dcmes-xml, json, omeka-xml, rss2