Abstract
ABSTRACT The conversion between equatorial (α, δ) and new galactic (l, b) coordinate systems involves the straightforward application of an IAU definition and some basic spherical trigonometry. Unfortunately, the common reference books (e.g., Allen 1973; Kraus 1966) do not quote the definition correctly and frequently copied computer algorithms (e.g., Ball 1969; Manchester and Gordon 1970), having incorporated this error, lead to an inconsistent forward-backward conversion and to errors of as much as one arc minute. We present here the source of these errors and accurate parameters for use in general conversion routines.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Publications of the Astronomical Society of the Pacific
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.