Observations of Encke's Comet, of the Comet III. 1861 (Tuttle's); of the Asteroids Elpis, Callypso, Echo and Euphrosyne, made with the Equatorial of the U. S. Naval Observatory

✍ Scribed by James Ferguson

• Publisher: John Wiley and Sons
• Year: 1862
• Tongue: English
• Weight: 190 KB
• Volume: 57
• Category: Article
• ISSN: 0004-6337
• DOI: 10.1002/asna.18620572104

✦ Synopsis

In .X 1200 of the Astr. Nachr. Dr. Aumers has published corrected elements for I859 Juli 18,O derived from the first six oppositions. A comparison of our results gives This close agreement is of some interest, since we have used different methods for t h e computation of the perturbations. The error of Dr. Aumers' ephemeris for 1860, namely h a = -3'28, is not justified by A.-S.; therefore only a constant error in the computation of the ephemeris i s probable. Observations of Encke's Comet, of the Comet 111. 1861 (Tzcttle's); of the Asteroids Elpis, Callypso, Echo and Euphrosyne, made with the Equatorial of the U. S. Naval Observatory, by James Ferguson. Comniilnicated hy Commander J. M. Gilliss. I n these observations A a and A d are the values measured by the instrument, refraction and parallax. a and 8 are the results corrected for E n ch e ' s C o in e t.