planet: 7 - Uranus  
  satellites: U1-Ariel   :  3,
              U2-Umbriel :  2,
              U3-Titania : 14,
              U4-Oberon  : 14
total number: 33
        type: relative
       dates: 1847-1847
 observatory: no information

   Lassel W. (1847)
   Satellites of Uranus
   Monthly Notices of the Royal Astronomical Society. V. 8. P. 43-44.
   Lassel W. (1848)
   Schreiben des Herrn Lassel an den Herausgeber.
   Astronomische Nachrichten. V. 27. P. 41-42.
   Lassel W. (1852)
   Beobachtungen der Uranus-Satelliten.
   Astronomische Nachrichten. V. 34. P. 325-328.

         relative to: planet
     reference frame: apparent
     centre of frame: topocentre
    epoch of equinox: date
          time scale: Grinwich Mean Time
           reduction: no information
         coordinates: position angle and separation
    diff. refraction: no information
            receptor: micrometric
           telescope: no information
           observers: W. Lassel
 data included in standard data file: no

          Year was changed from 1848 to 1847
          Some of the data were omitted as very doubtful 

  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 with decimals
  5. Degrees of P (position angle) (999 if not given)
  6. Arcmin of P (position angle)(99 if not given)
  7. S (separation) in arcsec (-99.99 if not given)
N  Year     G.M.T.   P           
sat  month          arcmin      S  
          day      deg.       arcsec