Contents. planet: 7 - Uranus satellites: U1-Ariel : 6, U2-Umbriel: 5, U3-Titania: 4, U4-Oberon : 6, U5-Miranda: 4 total number: 25 type: absolute dates: 1974-1974 observatory: 711 - McDonald Observatory, Fort Davis Reference. Mulholland J.D., Shelus P.J., Jefferys W.H., Benedict G.F. (1979) Outer planet satellite studies. In: Natural and Artificial Satellites Motion. Ed. by Paul E. Nacozy and Sylvio Ferraz-Mello. University of Texas Press. Austin and London. P. 39-48. 1979nasm.conf___39M Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: B1950 time scale: UTC reduction: Palomar Sky Survey Catalogue coordinates: absolute diff. refraction: no information receptor: photographic telescope: Reflector, D=2.1 m observers: Shelus P.J. Measurers: Abbot R.I., Mulholland J.D. data included in standard data file: no Comments. no information Format. 1. Year of the moment of observation 2. Month of the moment of observation 3. Day of the moment of observation with decimals 4. Number of satellite (0 for Uranus) 5. Right ascension (alpha), degrees 6. Declination (delta), degrees --------------------------------------------- Year alpha delta month N day sat degrees degrees ---------------------------------------------