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References
- ↑ "Small-Body Database Lookup: C/1931 P1 (Ryves)". ssd.jpl.nasa.gov. Retrieved 22 January 2024.
- 1 2 "Ryves Comet Passes at 100 Miles a Second; Heads for Void, Probably Never to Return". New York Times . August 28, 1931. p. 13.
- 1 2 3 4 Bower, E. C.; Miller, Mary L. (October 1931). "Comet 1931c (Ryves)". Publications of the Astronomical Society of the Pacific. 43 (255): 357. Bibcode:1931PASP...43..357B. doi:10.1086/124164.
- ↑ Ryves, P. M.; Shapley, H.; van Biesbroeck, G. (15 August 1931). "Comet Ryves (1931c)". International Astronomical Union Circular (331): 1. ISSN 0081-0304.
- ↑ "Elusive Ryves Comet Is Photographed; Yerkes Observer Gets Picture as Wanderer Rises on Horizon Ahead of Sun" . New York Times . October 9, 1931. p. 2.
- ↑ van Biesbroeck, G. (1931). "Comet Notes: Comet 1931 c (Ryves)". Popular Astronomy. 39: 546. Bibcode:1931PA.....39..546V. ISSN 0197-7482.
- ↑ Bower, Ernest Clare; Miller, Mary L. (1931). "Elements and ephemeris of Comet 1931c (Ryves)". Lick Observatory Bulletins. 15: 179–180. Bibcode:1931LicOB..15..179B. doi:10.5479/ADS/bib/1931LicOB.15.179B.
