Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная
Luni-solar precession derived from proper motions of PPM. / Vityazev, V.V.; Tsvetkov, A.S.
Proceedings "Modern problems and methods of astrometry and geodynamics", St. Petersburg, 1996. 1996. стр. 1-6.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная
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TY - GEN
T1 - Luni-solar precession derived from proper motions of PPM
AU - Vityazev, V.V.
AU - Tsvetkov, A.S.
PY - 1996
Y1 - 1996
N2 - From the proper motions of 222185 PPM stars the correction to the value of the IAU 1976 luni-solar precession was found to be ¡0:38§0:05 arcsec per century. The value is in a good agreement with the result obtained from VLBI observations of extragalactic radio sources. (Walter and C.Ma, 1994). In the magnitude ranges 6-8 and 10-13 the component ¹ cos(±) yields the correction to precession which strongly deviates from the above mentioned value. The reduction procedure to free the proper motions of the PPM of quasi-precessional magnitude equation and to make them compatible with the newest value of the luni-solar precession is proposed.
AB - From the proper motions of 222185 PPM stars the correction to the value of the IAU 1976 luni-solar precession was found to be ¡0:38§0:05 arcsec per century. The value is in a good agreement with the result obtained from VLBI observations of extragalactic radio sources. (Walter and C.Ma, 1994). In the magnitude ranges 6-8 and 10-13 the component ¹ cos(±) yields the correction to precession which strongly deviates from the above mentioned value. The reduction procedure to free the proper motions of the PPM of quasi-precessional magnitude equation and to make them compatible with the newest value of the luni-solar precession is proposed.
KW - Astrometry
KW - PPM
KW - precession
M3 - Conference contribution
SP - 1
EP - 6
BT - Proceedings "Modern problems and methods of astrometry and geodynamics", St. Petersburg, 1996
ER -
ID: 4482385