0. DOCID:6975 1910 "The Naval Observatory: The Completion of the Catalogue of the Washington Zones of 1846-52" 0.017329299732105
1. DOCID:4246 1899 "The Astronomical and Astrophysical Society of America" 0.0154461003189199
2. DOCID:6560 1909 "Note on the Spectrum of Mars" 0.0146239488145931
3. DOCID:4656 1901 "The U.S. Naval Observatory" 0.0136800449801993
4. DOCID:4406 1900 "Address of the Chairman of the Department of Astronomy of the British Association" 0.0129345477154297
5. DOCID:6736 1909 "Water Vapor in the Atmosphere of the Planet Mars" 0.0125441423115168
6. DOCID:5311 1904 "The Crocker Eclipse Expedition of the Lick Observatory" 0.0121359851909501
7. DOCID:6535 1909 "Oxygen as Well as Water Proved to Exist in the Atmosphere of Mars" 0.0120436756489355
8. DOCID:3820 1898 "The Development of Photography in Astronomy (II.)" 0.0108337592243896
9. DOCID:6236 1907 "Photographs of Faint Stars" 0.010581920686552
10. DOCID:4330 1900 "The Astronomical and Astrophysical Society of America" 0.0105738392273447
11. DOCID:6191 1907 "Formulas for the Comparison of Astronomical Photographs" 0.0103928367575366
12. DOCID:6826 1910 "The Bearing of Psychrometer Readings on Measurements of Martian Aqueous Vapor" 0.00974197043386863
13. DOCID:7139 1911 "The South Kensington Solar Physics Observatory" 0.00958231682275255
14. DOCID:4009 1899 "Astronomy in the First Half of the Nineteenth Century" 0.00943409685811839