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%.IDENTIFICATION how.tex
%.PURPOSE        SPECIFICATIONS concerning NAMES, etc
%.AUTHOR         H.R. Dickel
%.VERSION   1.0  01-Nov-1994 (H.R. Dickel)
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%.VERSION   1.5  05-Apr-1995 (HRD) -revised 1st sentence re Clearing House
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%.VERSION   1.84 24-Mar-2004: Chair
%.VERSION   1.85 09-Oct-2006: Address
%.VERSION   1.86 15-Dec-2017: (MB) Commission 5 replaced by Commission B2 +
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\begin{document}

\TITLE{ {\Large\bf How to refer to a source or designate a new one}\\
{\normalsize from the} {\Large IAU Commission B2 Working Group on Designations} \\
{\normalsize (for astronomical sources of radiation outside the solar system)}\\
{\Large (current chair, Marion Schmitz)}
}

\begin{center} \begin{tabular}{ll}
\normalsize
        & (version \Version)
\end{tabular} \end{center}

\bigskip

\noindent {\bf In general} all source listings should always contain
positional information and/or a second designation next to a
principal designation in order to avoid ambiguities which can arise with
a single designation.

\noindent {\bf Existing designations} when used in listings, should never be
altered and a bibliographical reference for the designation should be given.

\noindent {\bf When creating a new catalogue of sources}.
please consider {\bf\A{/viz-bin/DicForm}{registering for an acronym}},
preferably before your new objects
become referenced (even informally).

\noindent {\bf When creating new designations}, 
such as for newly discovered source(s),
the following procedure is recommended:

\begin{enumerate}
\item	Think up an acronym of at least three characters and
           check the on--line 
	   {\em\A{/viz-bin/Dic}{Interactive Dictionary of Acronyms}}
	   to be sure your acronym is unique.

\item	Think up a sequence numbering
	\begin{enumerate}
	\item	running number, or
	\item	based on the position, e.g. a chain based on
		{\bf\em truncated} 2000 coordinates {\em preceded by
		the letter {\bf J}} (example: {\bf\tt J1234+5612})
	\end{enumerate}
\end{enumerate}

\begin{itemize}
\item	Other examples and rules are in the 
        \A{iau-spec.htx}{{\em IAU Recommendations for Nomenclature}},
	including \A{iau-spec.htx#3.6}{helpful hints}.
\item	Consult representatives of the
	{\em\A{iau-spec.htx\#4}{\em Clearing House}}
	if problems arise and specific advice is desired.
\end{itemize}

\noindent {\bf References}
\begin{itemize}
\item	{\em\A{iau-spec.htx}{IAU Recommendations for Nomenclature}} 
	is revised every three years;
\item	{\em\A{/viz-bin/Dic}{Interactive Dictionary of Acronyms}} 
	is updated on a regular basis
	(i.e. weekly)
\end{itemize}

\iffalse	% Removed 25 Feb 2000
Both are also available on-line on the free {\tt info} account installed on the
Internet node {\tt\A{telnet://info@simbad.u-strasbg.fr}{simbad.u-strasbg.fr}} 
(130.79.128.4) 
or NSI/DECnet node {\tt SIMBAD}
(18099-17.691).  Login as {\tt info}, no password is required.  For the
{\em IAU Recommendations for Nomenclature}, 
just type {\tt IAU} after the {\tt info} prompt.
\fi

\noindent The {IAU Recommendations for Nomenclature}
is also available on the World-Wide-Web via your favorite web browser 
%e.g. Mosaic, Netscape, etc.,
at the URL address: \\
{\bf http://cdsweb.u-strasbg.fr/iau-spec.htx} 

\noindent World-Wide-Web access to the 
{\em Interactive Dictionary of Acronyms} is
managed by the
{\em\Aglutag{CDS.home}{Centre de Donn\'ees de Strasbourg}} (CDS) 
at the URL address: \\
{\bf http://cdsweb.u-strasbg.fr/cgi-bin/Dic}; 
mirror installations are available at
    http://vizier.nao.ac.jp/viz-bin/Dic \quad
    http://vizier.cfa.harvard.edu/viz-bin/Dic

\noindent Latex and PDF versions of 
%\A{ftp://cdsarc.u-strasbg.fr/pub/iau/how.tex}
{\em How to refer to a source or designate a new one}
and {\em IAU Recommendations for Nomenclature}
are accessible by anonymous ftp at Internet {\tt node cdsarc.u-strasbg.fr}.  \\
(URL ftp://cdsarc.u-strasbg.fr/pub/iau)

\iffalse        % Removed 15-Dec-2017 (MB)
\noindent {\bf Clearing House} \\
\noindent Advice on specific problems may be obtained from members of the 
\A{iau-spec.htx\#4}{{\em Clearing House}}, 
a subset of the Working Group on Astronomical
Designations of IAU Commission 5  (current chair, Marion Schmitz)
Representatives are listed
at the end of the {\em IAU Recommendations for Nomenclature}.
\fi

\noindent {\bf Working Group Designations} \\
\noindent Advice on specific problems may be obtained from members of the
representatives of the Working Group on Astronomical Designations of IAU
Commission B2 (current chair, Marion Schmitz),
see the \A{iau-spec.htx\#S4}{list} at the end of the {\em IAU
Recommendations for Nomenclature}.

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