我正在写一篇论文，格式是《皇家天文学会月刊》（MNRAS- mn2e）。我似乎在表格方面遇到了不少问题。我有几个长表格，跨越了不止一页。我试过 longtable 包，但这会导致表格被分成许多小部分，跨越许多页。此外，表格不在页面中央，标题也不显示。
我的序言是：
\RequirePackage{rotating} %for rotating (landscaping) tables
\documentclass[useAMS,usenatbib]{mn2e}
%\documentclass[a4paper,11pt,twoside]{article} %showframe
% set up sensible margins (same as for cssethesis)
%\usepackage[paper=a4paper,left=30mm,width=150mm,top=25mm,bottom=25mm] {geometry}
%\usepackage{setspace} % Word spacing
%\singlespacing %(or \doublespacing \onehalfspacing)
\usepackage{txfonts}
\usepackage{mathtools} % can add [fleqn]: fleqn argument shifts equations to the left rather than centred
\usepackage{amssymb} % adds math symbols easily
\usepackage[load-configurations=astronomy]{siunitx} % astro symbols made easy. eg: \num{2e-4} \si{\kilo\metre} \SI{2e-4}{\kilo\metre\per\second}
\DeclareSIUnit\parsec{pc}
\DeclareSIUnit\kilo{K}
\DeclareSIUnit\ergs{ergs}
\usepackage[version=3]{mhchem} % chem symbols made easy eg: \ce{H20}
%\numberwithin{equation}{section} %gives eqns as 1.1 in section 1 and 2.1 in section 2 and so on.
\usepackage{graphicx} % Helps with graphics and tables
%\usepackage[width=0.8\textwidth]{caption} % justification=centering,Captions on figures labelfont=bf,font=it,
\usepackage{float}
\usepackage{subfigure}
\usepackage{subcaption} %subcaptions on figures
%\numberwithin{figure}{section}
\usepackage{titlesec}
\titlespacing\section{0pt}{12pt plus 4pt minus 2pt}{6pt plus 2pt minus 2pt}
\titlespacing\subsection{0pt}{12pt plus 4pt minus 2pt}{6pt plus 2pt minus 2pt}
\titlespacing\subsubsection{0pt}{12pt plus 4pt minus 2pt}{6pt plus 2pt minus 2pt}
\usepackage{morefloats}
\usepackage{lscape}
\usepackage{pdflscape}
%\usepackage{afterpage}
%\newcommand\blankpage{%
%\null
%\thispagestyle{empty}%
%\addtocounter{page}{-1}%
%\newpage}
\usepackage{color}
%\usepackage{pdfpages}
\usepackage{perpage} %the perpage package
\MakePerPage{footnote} %the perpage package command
\usepackage [author year, colon, round]{natbib}
%\usepackage{bibtex} % Use the natbib bibliography and citation package (author, year style, with round brackets)
\usepackage{hyperref} % hyperlinks to reference
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{array}
\usepackage{longtable}
\usepackage{tabu}
\usepackage{threeparttable} %table with notes
\usepackage{threeparttablex} %longtable with notes
\usepackage{rotating}
\usepackage{xtab}
\usepackage{multicol}
\usepackage[title,titletoc,toc]{appendix} % \appendix
%\newcommand{\sol}[1]{\odot{#1}} % short code for sun symbol
% {$\mathrm{}$} = Math mode in non-italized form
\newcommand{\textsubscript}[1]{$_\textrm{#1}$} %short code for subscripting
\newcommand{\Ha}{H${\alpha}$} % short code for H-alpha
\newcommand{\HB}{H$\beta$} % short code for H-beta
\newcommand{\EHaHB}{E(H$\alpha$-H$\beta$)} % short code for E(Ha-HB)
\newcommand{\CHa} {C$_{{\textrm{H}\alpha}}$} % short code for CHa
\newcommand{\CHB}{C$_{{\textrm{H}\beta}}$} % short code for CH-beta
\newcommand{\AV}{$\textrm{A}_{\textrm{V}}$} % short code for Av
\newcommand{\Av}{$\textrm{A}_{\textrm{V}}$} % short code for Av
\newcommand{\AvCHB}{A_{\textrm{V}}(\textrm{C}$_{{\textrm{H}\beta}}$)} % short code for Av(CH-beta)
\newcommand{\AvCHa}{A_{\textrm{V}}(\textrm{C}$_{{\textrm{H}\alpha}}$)} % short code for Av(CH-alpha)
\newcommand{\AvE}{A_{\textrm{V}}[\textrm{E}(\textrm{H}$\alpha$-\textrm{H}$\beta$)]} % short code for E(Ha-HB)
\newcommand{\app}[1]{\textup{\textsc{\MakeLowercase{#1}}}}
\newcommand{\comm}[1]{\texttt{#1}}
\title[}
\author[]
\date{Received:}
\begin{document}
\maketitle
\begin{abstract}
.....
\end{abstract}
\begin{keywords}
......
\end{keywords}
\input{./Tables/Table1}
%\include{Appendix}
\bibliographystyle{chicago}
\bibliography{fullbib}
\end{document}
我的表格代码是：
\begin{longtable*}{llllllp{1.5cm}p{1.5cm}}
\caption{....}
\label{....}
\toprule
\multicolumn{2}{c}{\textbf{PN}} & \multicolumn{2}{c}{\textbf{{\AvE}}} & \multicolumn{2}{c}{\textbf{{\AV}(Radio)}} & \multicolumn{2}{l}{\textbf{Weighted Averaged {\Av}}} \\
\cmidrule(lr){1-2}
\cmidrule(lr) {3-4}
\cmidrule(lr) {5-6}
\cmidrule(lr) {7-8}
\multicolumn{1}{l}{\textbf{PN G}} & \multicolumn{1}{l}{\textbf{Name}} & \multicolumn{1}{l}{\textbf{{\Av}}} & \multicolumn{1}{l}{\textbf{unc.}} & \multicolumn{1}{l}{\textbf{{\AV}}} & \multicolumn{1}{l}{\textbf{unc.}} & \multicolumn{1}{l}{\textbf{{\AV}}} & \multicolumn{1}{l}{\textbf{unc.}} \\
(1) & (2) & (3) & (4) & (5) & (6) & (7) & (8)\\
\hline
\endfirsthead
\caption {continued..}
\toprule
\multicolumn{2}{c}{\textbf{PN}} & \multicolumn{2}{c}{\textbf{{\AvE}}} & \multicolumn{2}{c}{\textbf{{\AV}(Radio)}} & \multicolumn{2}{l}{\textbf{Weighted Averaged {\Av}}} \\
\cmidrule(lr){1-2}
\cmidrule(lr) {3-4}
\cmidrule(lr) {5-6}
\cmidrule(lr) {7-8}
\multicolumn{1}{l}{\textbf{PN G}} & \multicolumn{1}{l}{\textbf{Name}} & \multicolumn{1}{l}{\textbf{{\Av}}} & \multicolumn{1}{l}{\textbf{unc.}} & \multicolumn{1}{l}{\textbf{{\AV}}} & \multicolumn{1}{l}{\textbf{unc.}} & \multicolumn{1}{l}{\textbf{{\AV}}} & \multicolumn{1}{l}{\textbf{unc.}} \\
(1) & (2) & (3) & (4) & (5) & (6) & (7) & (8)\\
\hline
\endhead
\multicolumn{1}{l}{030.80+03.47} & \multicolumn{1}{l}{A 47} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{8.79} & \multicolumn{1}{l}{0.11} & \multicolumn{1}{l}{8.79} & \multicolumn{1}{l}{0.11} \\
\multicolumn{1}{l}{031.03+04.13} & \multicolumn{1}{l}{K 3-6} & \multicolumn{1}{l}{7.92} & \multicolumn{1}{l}{3.08} & \multicolumn{1}{l}{6.98} & \multicolumn{1}{l}{0.15} & \multicolumn{1}{l}{7.02} & \multicolumn{1}{l}{0.14} \\
\multicolumn{1}{l}{210.09+03.99} & \multicolumn{1}{l}{We 2- 34} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} & \multicolumn{1}{l}{-} \\
\multicolumn{1}{l}{210.38+01.90} & \multicolumn{1}{l}{M 1- 8} & \multicolumn{1}{l}{2.49} & \multicolumn{1}{l}{0.32} & \multicolumn{1}{l}{2.47} & \multicolumn{1}{l}{0.21} & \multicolumn{1}{l}{2.48} & \multicolumn{1}{l}{0.13} \\
\multicolumn{1}{l}{212.03+04.36} & \multicolumn{1}{l}{M 1- 9} & \multicolumn{1}{l}{0.44} & \multicolumn{1}{l}{0.32} & \multicolumn{1}{l}{1.38} & \multicolumn{1}{l}{0.04} & \multicolumn{1}{l}{1.27} & \multicolumn{1}{l}{0.03} \\
\......
\bottomrule
\end{longtable*}