Contents. planet: Neptune satellites: N1 - Triton: 27 total number: 27 type: relative dates: 1886-1887 observatory: 20 - Nice References. Perrotin H.J. (1887) Memoires et observations. Observations des satellites Hyperion, Ariel, Umbriel et du Satellite de Neptune, faites a l'observatoire de Nice Bulletin Astronomique, Serie I, vol. 4, pp.339-341 1887BuAsI___4__339P Informations. relative to: planet reference frame: apparent centre of frame: topocentre epoch of equinox: date time scale: T.m.de Nice reduction: no information coordinates: position angle and separation diff. refraction: no information receptor: micrometric telescope: l'equatorial de 0m,76 observers: Perrotin H.J. 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 observation 5. Minute of the observation 6. Seconds of the observation with decimals 7. Degrees of P (position angle) in degrees (999 if not given) 8. S (separation) in arcsec (-99.99 if not given) --------------------------------------- Year P.S.T P month deg. S day h m s arcsec ---------------------------------------