| Issue |
A&A
Volume 453, Number 1, July I 2006
|
|
|---|---|---|
| Page(s) | 349 - 352 | |
| Section | Celestial mechanics and astrometry | |
| DOI | https://doi.org/10.1051/0004-6361:20054644 | |
| Published online | 09 June 2006 | |
CCD positions for eight Jovian irregular satellites
Observatório Nacional/MCT, Rua General José Cristino 77, 20921-400 Rio de Janeiro, Brazil e-mail: cave@on.br
Received:
5
December
2005
Accepted:
12
January
2006
The astrometric positions of eight irregular Jovian
satellites are given for the oppositions of the planet from
1995 to 1999. These positions were measured on 204 CCD frames
obtained at the Cassegrain focus of a 1.6 m reflector. They
are compared with the theoretically calculated positions
from JPL Development Ephemeris. The observed minus-calculated
standard deviation for all observations of the eight satellites are
0
071 and 
0052.
The USNO-A2.0 catalog was used for the astrometric calibration.
Key words: astrometry / celestial mechanics
© ESO, 2006
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