diff options
| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
| commit | d54fe7c1f704a63824c5bfa0ece65245572e9b27 (patch) | |
| tree | afc52015ffc2c74e0266653eecef1c8ef8ba5d91 /src/slalib/sun67.htx/node100.html | |
| download | calfuse-d54fe7c1f704a63824c5bfa0ece65245572e9b27.tar.gz | |
Initial commit
Diffstat (limited to 'src/slalib/sun67.htx/node100.html')
| -rw-r--r-- | src/slalib/sun67.htx/node100.html | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/slalib/sun67.htx/node100.html b/src/slalib/sun67.htx/node100.html new file mode 100644 index 0000000..104db1d --- /dev/null +++ b/src/slalib/sun67.htx/node100.html @@ -0,0 +1,110 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997) + by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds +* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan +* with significant contributions from: + Jens Lippman, Marek Rouchal, Martin Wilck and others --> +<HTML> +<HEAD> +<TITLE>SLA_ETRMS - E-terms of Aberration</TITLE> +<META NAME="description" CONTENT="SLA_ETRMS - E-terms of Aberration"> +<META NAME="keywords" CONTENT="sun67"> +<META NAME="resource-type" CONTENT="document"> +<META NAME="distribution" CONTENT="global"> +<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1"> +<LINK REL="STYLESHEET" HREF="sun67.css"> +<LINK REL="next" HREF="node101.html"> +<LINK REL="previous" HREF="node99.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node101.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html1426" HREF="node101.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1424" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1418" HREF="node99.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html1427" HREF="node101.html">SLA_EULER - Rotation Matrix from Euler Angles</A> +<BR> +<B>Up:</B> <A NAME="tex2html1425" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1419" HREF="node99.html">SLA_EQGAL - J2000 to Galactic</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION000487000000000000000">SLA_ETRMS - E-terms of Aberration</A> +<A NAME="xref_SLA_ETRMS"> </A><A NAME="SLA_ETRMS"> </A> +</H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Compute the E-terms vector - the part of the annual +aberration which arises from the eccentricity of the + Earth's orbit. +<P> <DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_ETRMS (EP, EV)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>EP</EM></TD> +<TH ALIGN="LEFT"><B>D</B></TH> +<TD ALIGN="LEFT" NOWRAP>Besselian epoch</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>EV</EM></TD> +<TH ALIGN="LEFT"><B>D(3)</B></TH> +<TD ALIGN="LEFT" NOWRAP>E-terms as <IMG WIDTH="96" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img109.gif" + ALT="$[\Delta x, \Delta y, \Delta z\,]$"></TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTE:</STRONG> +<DD>Note the use of the J2000 aberration constant ( +<IMG WIDTH="64" HEIGHT="18" ALIGN="BOTTOM" BORDER="0" + SRC="img110.gif" + ALT="$20\hspace{-0.05em}^{'\hspace{-0.1em}'}\hspace{-0.4em}.49552$"> ). + This is a reflection of the fact that the E-terms embodied in + existing star catalogues were computed from a variety of + aberration constants. Rather than adopting one of the old + constants the latest value is used here. + </DL> +<P> <DL> +<DT><STRONG>REFERENCES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>Smith, C.A. <I>et al.</I>, 1989. <I>Astr.J.</I> <B>97</B>, 265. +<DT>2. +<DD>Yallop, B.D. <I>et al.</I>, 1989. <I>Astr.J.</I> <B>97</B>, 274. +</DL></DL> +<BR> <HR> +<A NAME="tex2html1426" HREF="node101.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1424" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1418" HREF="node99.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html1427" HREF="node101.html">SLA_EULER - Rotation Matrix from Euler Angles</A> +<BR> +<B>Up:</B> <A NAME="tex2html1425" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1419" HREF="node99.html">SLA_EQGAL - J2000 to Galactic</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<ADDRESS> +<I>SLALIB --- Positional Astronomy Library<BR>Starlink User Note 67<BR>P. T. Wallace<BR>12 October 1999<BR>E-mail:ptw@star.rl.ac.uk</I> +</ADDRESS> +</BODY> +</HTML> |