planet: 7 - Uranus  
  satellites: U1-Ariel   : 5,
              U2-Umbriel : 5,
              U3-Titania : 5,
              U4-Oberon  : 5
total number: 20
        type: relative
       dates: 1914-1914
 observatory: 662 - Lick Observatory, Mount Hamilton

   Nicholson S.B. (1915)
   Photographic measures of the satellites of Uranus.
   Lick Observatory Bulletin. V. 8. P. 143-144.

         relative to: planet
     reference frame: apparent
     centre of frame: topocentre
    epoch of equinox: date
          time scale: Mount Hamilton Mean Time
           reduction: no information
         coordinates: X, Y
    diff. refraction: excluded
            receptor: photographic
           telescope: no information
           observers: Nicholson S.B.
 data included in standard data file: no

          no information

  1. Observed satellite number (N sat)
  2. Year    of the moment of observation
  3. Month   of the moment of observation
  4. Day     of the moment of observation 
  5. Hour    of the observation
  6. Minute  of the observation, with decimals
  7. X, arcsec
  8. Y, arcsec
    Year        M.H.M.T.           
 N    month      h  m      X       Y  
sat        day          arcsec  arcsec