Astrometry of Pluto from 1969 to 1989

One hundred seventy-five accurate positions of Pluto obtained during 20 years of observations at the Asiago Astrophysical Observatory are compared with the JPL Development Ephemeris DE202. The residuals plotted versus epoch show a systematic trend, with an amplitude up to 1".5 in RA. The run-of...

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Veröffentlicht in:	Icarus (New York, N.Y. 1962) N.Y. 1962), 1994-04, Vol.108 (2), p.174-179
Hauptverfasser:	Gemmo, Alessandra G., Barbieri, Cesare
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrometry and reference systems Astronomy Earth, ocean, space Exact sciences and technology Fundamental astronomy Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	One hundred seventy-five accurate positions of Pluto obtained during 20 years of observations at the Asiago Astrophysical Observatory are compared with the JPL Development Ephemeris DE202. The residuals plotted versus epoch show a systematic trend, with an amplitude up to 1".5 in RA. The run-off in RA found by other authors is confirmed. Twenty-nine previously unpublished positions, measured mainly on plates obtained at ESO-La Silla in the years 1988-1989, are also reported.
ISSN:	0019-1035 1090-2643
DOI:	10.1006/icar.1994.1051