Contents. planet: 7 - Uranus satellites: U4-Oberon : 28 total number: 28 type: absolute dates: 1966-1966 observatory: 695 - Kitt Peak 693 - Catalina Station, Tucson Reference. van Biesbroeck G., Vesely C.D., Aksnes K., Marsden B.G. (1976) Observations of comets, minor planets, Pluto, and satellites. Astronomical Journal. V. 81. P. 122-124. 1976AJ_____81__122V Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: B1950 time scale: UTC reduction: no information coordinates: absolute diff. refraction: no information receptor: photographic telescope: 695 - Reflector, D=213 cm 693 - Reflector, D=154 cm observers: van Biesbroeck G., Measurer: Vesely C.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. Hour of right ascension (alpha, h) 5. Minute of right ascension (alpha, m) 6. Second of right ascension (alpha, s) 7. Degree of declination (delta, deg) 8. Minute of declination (delta, ' ) 9. Second of declination (delta, '' ) 10. Number of observatory (N obs) ----------------------------------------------- Year alpha delta N month day h m s deg ' '' obs -----------------------------------------------