Contents.
      planet: 7 - Uranus  
  satellites: U1-Ariel   : 13,
              U2-Umbriel : 13,
              U3-Titania : 29,
              U4-Oberon  : 27
total number: 82
        type: relative
       dates: 1876-1878
 observatory: 786 - U.S. Naval Obs., Washington
             
Reference.
   Hall A. (1876)
   Observations of the Satellites of Neptune and Uranus.
   Astronomische Nachrichten. V. 88. P. 131-138.
   1876AN_____88__131H
   Hall A. (1877)
   Observations made with the 26 inch Refractor of the U.S.Naval Observatory,
   at Washington
   Astronomische Nachrichten. V. 90. P. 161-166.
   1877AN_____90__161H
   Hall A. (1878)
   Observations with the 26 inch Refractor of the Naval Observatory,
   at Washington
   Astronomische Nachrichten. V. 93. P. 65-70.
   1878AN_____93___65H

Informations.
         relative to: planet
     reference frame: apparent
     centre of frame: topocentre
    epoch of equinox: date
          time scale: Washington Mean Time
           reduction: no information
         coordinates: position angle and separation
    diff. refraction: not excluded
            receptor: micrometric
           telescope: Refractor, D=26 inch
           observers: Hall A.Jr.
 data included in standard data file: no

Comments.
          no information

Format.
  1. Observed satellite number, obs.
  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
  7. P (position angle) in degrees
  8. Hour    of the observation
  9. Minute  of the observation
 10. S (separation) in arcsec

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sat Year       W.M.T.         W.M.T.   
obs   month     h  m     P     h  m   S  
           day       degrees        arcsec
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