Contents. planet: 8 - Neptune satellites: N8 - Proteus : 8 total number: 8 type: relative dates: 1991-1991 observatory: 809 - European Southern Observatory, La Silla Reference. Colas F., Buil C. (1992) First Earth-based observations of Neptune's satellite Proteus. Astronomy and Astrophysics, vol. 262, p. L13, L14. 1992A&A___262L__13C Informations. relative to: planet reference frame: astrometric centre of frame: topocentre epoch of equinox: date time scale: UTC reduction: no information coordinates: X, Y diff. refraction: no information receptor: CCD telescope: Reflector, D=2.2 m observers: Colas F., Buil C. 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 4. Hour of the moment of observation 5. Minutes of the moment of observation 6. Secondes of the moment of observation 7. X, arcsec 8. Y, arcsec ------------------------------------- Year hour X Y month minutes day sec arcsec arcsec -------------------------------------