J/A+AS/120/107 1989-1994 CCD observations of Triton (Veiga+ 1996)
CCD observations of Triton
Veiga C.H., Vieira Martins R.
<Astron. Astrophys. Suppl. Ser. 120, 107 (1996)>
=1996A&AS..120..107V 1996A&AS..120..107V (SIMBAD/NED BibCode)
ADC_Keywords: Planets ; Positional data
Keywords: planets and satellites - satellites of Neptune - astrometry
Abstract:
Astrometric positions of the Neptunian Satellite Triton are given for
the opposition of Neptune for the years 1989 to 1994. These positions
where measured on 433 CCD frames obtained at the Cassegrain focus of a
1.6 m reflector. They are compared with theoretical positions
calculated from Jacobson et al. (1991A&A...247..565J 1991A&A...247..565J). The observed
minus calculated residuals referred to Neptune have standard
deviations of the order of 0.11".
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 39 433 List of observed positions of the
Neptunian satellite
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See also:
J/A+AS/121/65 : 1990-1994 Saturn's satellites astrometry (Harper+ 1997)
J/A+AS/136/257 : Saturn's satellites in 1995/97 (Harper+ 1999)
J/A+AS/131/291 : 1995-1997 CCD positions of Triton (Veiga+ 1998)
J/A+AS/136/445 : CCD observations of Nereid (Veiga 1999)
J/A+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 yr Obs.Y Mean instant of the observation (year)
6- 7 I2 --- Obs.M Mean instant of the observation (month)
9- 16 F8.5 d Obs.D Mean instant of the observation (day)
18- 23 A6 --- Sat Name of the satellite
25- 30 F6.2 arcsec DRA {DELTA}αcosδ position relative
to Neptune (1950.0)
32- 37 F6.2 arcsec DDE {DELTA}δ position relative to
Neptune (1950.0)
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Acknowledgements: Carlos Henrique Veiga
(End) Patricia Bauer [CDS] 09-Mar-1998