Contents.
planet: 7 - Uranus
satellites: U1-Ariel : 3,
U2-Umbriel : 4,
U3-Titania : 7,
U4-Oberon : 10
total number: 24
type: absolute
dates: 1980-1980
observatory: 809 - European Southern Observatory, La Silla
Reference.
Debehogne H., Freitas-Mourao R. R., Vieira G. (1981)
Positions of Uranus and four satellites in 1980 obtained
at ESO La-Silla.
Acta Astronomica. V. 31. P. 391.
1981AcA____31__391D
Informations.
relative to: absolute
reference frame: astrometric
centre of frame: topocentre
epoch of equinox: B1950
time scale: UTC
reduction: Catalogue SAO
coordinates: absolute
diff. refraction: no information
receptor: photographic
telescope: Astrograph GPO, D=40 cm, F= 4 m.
observers: Debehogne H., Freitas-Mourao R. R., Vieira G.
data included in standard data file: no
Comments.
no information
Format.
1. Number of satellite (0 for Uranus)
2. Number of plate
3. Year of the moment of observation
4. Month of the moment of observation
5. Day of the moment of observation with decimals
6. Hour of right ascension (alpha, h)
7. Minute of right ascension (alpha, m)
8. Second of right ascension (alpha, s)
9. Degree of declination (delta, deg)
10. Minute of declination (delta, ' )
11. Second of declination (delta, '' )
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N Year alpha delta
sat N month
plate day h m s deg ' ''
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