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A New Concept of Constructing an Accurate Coordinate System From Ground-Based Optical Observations

Published online by Cambridge University Press:  19 July 2016

Mao Wei ,
Hu Xiaochun ,
Guo Xinjian  and
Fan Yu
Mao Wei
Affiliation:
Yunnan Observatory P.O. Box 110 Kunming, Yunnan Province China, P.R.
Hu Xiaochun
Affiliation:
Yunnan Observatory P.O. Box 110 Kunming, Yunnan Province China, P.R.
Guo Xinjian
Affiliation:
Yunnan Observatory P.O. Box 110 Kunming, Yunnan Province China, P.R.
Fan Yu
Affiliation:
Yunnan Observatory P.O. Box 110 Kunming, Yunnan Province China, P.R.

Abstract

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Based on the expected precision and characteristics of the Low Latitude Meridian Circle (LLMC), and the development of CCD astrometry at Yunnan Observatory, an internally consistent and non-rotating optical celestial coordinate system can be set up through observations with the LLMC and CCDs. To obtain this goal, the main work we plan to do are (1) to establish a fundamental stellar reference system of several thousand stars based on the absolute obsrvations with the LLMC; (2) to provide the accurate zero-point corrections for the system from observations of minor planets with the LLMC and CCDs; (3) to determine the precessional rotation of the system with respect to an extragalactic reference system with the LLMC and CCDs, thus transforming the system into a quasi-inertial coordinate system; and (4) to obtain the atmospheric refraciton corrections from the observations with the LLMC.

Type
Part 3: Concepts, Definitions, Models
Information
Symposium - International Astronomical Union , Volume 141: Inertial Coordinate System on the Sky , 1990 , pp. 129 - 130
Copyright
Copyright © Kluwer 1990 

References

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