Документ взят из кэша поисковой машины. Адрес оригинального документа : http://lnfm1.sai.msu.ru/neb/nss/OBS_COLL/J/jo0015.html
Дата изменения: Tue Jun 22 18:51:00 2004
Дата индексирования: Mon Oct 1 23:32:47 2012
Кодировка:

Поисковые слова: crab nebula
jo0015
Contents.
      planet: 5 - Jupiter
  satellites: J6 - Himalia  : 23,
              J7 - Elara    :  9,
              J8 - Pasiphae : 13,
              J9 - Sinope   :  8,
             J10 - Lysithea :  7,
             J11 - Carme    : 10,
             J12 - Ananke   :  7,
             J13 - Leda     :  7
total number: 84
        type: absolute
       dates: 1990-1992
 observatory: 711 - McDonald Observatory, Fort Davis
              
Reference.
   Whipple A. L., Shelus P. J., and Benedict G. F. (1993)
   Astrometric observations of the faint outer satellites 
   of Jupiter during the 1990-1991 and 1991-1992 oppositions
   Astronomical Journal. V. 105. N. 1. P. 347-349.
   1993AJ____105__347W

Informations.
         relative to: absolute
     reference frame: astrometric
     centre of frame: topocentre
    epoch of equinox: J2000
          time scale: UTC
           reduction: Conversion to FK5/J2000.0
         coordinates: absolute
    diff. refraction: no information
            receptor: photographic
           telescope: Otto Struve reflector, D = 2.1 m.
           observers: Hemenway P.D., Shelus P. J., Whipple A.L.
 data included in standard data file: no

Comments.
            1. The FK4/B1950.0 positions of the ACRS reference stars were used.
               To obtain the positions given in the table, the FK4/B1950.0 
               positions of the satellites were processed to the J2000.0 frame
               by the transformations given in the IAU Commisson 20 
               Conversion to FK5/J2000.0.   
            2. Uncertainties are formal standard deviations from the solution
            in the two coordinates, computed as the quadratic sum of the
            formal standard deviations for the plate solutions
            (one for the CCD data and two for the plates).

Format.
  1. Number of satellite (N sat): 6 - J6, 7 - J7, 8 - J8, 9 - J9,
                                 10 - J10, 11 - J11, 12 - J12, 13 - J13.
  2. Julian date (UTC) of observation with decimals
  3. Hour   of right ascension (alpha, h)
  4. Minute of right ascension (alpha, m)
  5. Second of right ascension (alpha, s)
  6. Degree of declination (delta, deg)
  7. Minute of declination (delta, '  )
  8. Second of declination (delta, '' )
  9. Unsertainty in alpha, arcsec 
 10. Unsertainty in delta, arcsec 

-----------------------------------------------------------
                     alpha         delta      Unsertainties
N    JD (UTC)                                 alpha   delta 
sat  with decimals   h  m  s     deg  '  ''   arcsec arcsec
-----------------------------------------------------------