謎のおおぐまμ群

<BODY marginwidth="20" marginheight="20" topmargin="20" leftmargin="20"> <DIV class="standard_width"> <H1>■謎のおおぐまμ群</H1> <P>しし群も一段落ついた11月19/20日の未明、おおぐま座とこじし座の間に輻射点を持つとみられる流星が、4時20分50秒から約2分間の間に5個、出現しました。また、3時09分09秒には、輻射点位置での停止流星、その後にもいくつかの同群とみられる流星が観測されました。</P> <HR size="1"> <H3>■観測結果</H3> <TABLE border="0" width="480" cellspacing="1" cellpadding="1" align="center"> <TR valign="top"> <TD><STRONG>観測地：</STRONG></TD> <TD>竜天天文台公園（岡山県赤磐郡吉井町）　標高470m<BR> 東経134°00′18″　北緯34°53′26″</TD> </TR> <TR valign="top"> <TD><STRONG>観測者：</STRONG></TD> <TD>L!b</TD> </TR> <TR valign="top"> <TD><STRONG>観測方法：</STRONG></TD> <TD>眼視計数観測（天頂方向）</TD> </TR> </TABLE> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR> <TH class="tone4">No.</TH> <TH class="tone4">時刻</TH> <TH class="tone4">等級</TH> <TH class="tone4">速度</TH> <TH class="tone4">痕</TH> <TH class="tone4">位置</TH> <TH class="tone4">備考</TH> </TR> <TR> <TH class="tone0">1</TH> <TH class="tone0">3:09:09</TH> <TH class="tone0">3</TH> <TH class="tone0">-</TH> <TH class="tone0">　</TH> <TH class="tone0">UMa</TH> <TH class="tone0">停止流星</TH> </TR> <TR> <TH class="tone1">2</TH> <TH class="tone1">4:20:50</TH> <TH class="tone1">3</TH> <TH class="tone1">R</TH> <TH class="tone1">　</TH> <TH class="tone1">Cnc</TH> <TH class="tone1">　</TH> </TR> <TR> <TH class="tone0">3</TH> <TH class="tone0">4:21:04</TH> <TH class="tone0">3</TH> <TH class="tone0">R</TH> <TH class="tone0">　</TH> <TH class="tone0">LMi</TH> <TH class="tone0">　</TH> </TR> <TR> <TH class="tone1">4</TH> <TH class="tone1">4:21:55</TH> <TH class="tone1">2</TH> <TH class="tone1">vR</TH> <TH class="tone1">1s</TH> <TH class="tone1">Aur</TH> <TH class="tone1">　</TH> </TR> <TR> <TH class="tone0">5</TH> <TH class="tone0">4:22:27</TH> <TH class="tone0">3</TH> <TH class="tone0">R</TH> <TH class="tone0">　</TH> <TH class="tone0">UMa</TH> <TH class="tone0">　</TH> </TR> <TR> <TH class="tone1">6</TH> <TH class="tone1">4:22:52</TH> <TH class="tone1">4</TH> <TH class="tone1">R</TH> <TH class="tone1">　</TH> <TH class="tone1">Leo</TH> <TH class="tone1">　</TH> </TR> <TR> <TH class="tone0">7</TH> <TH class="tone0">4:50:25</TH> <TH class="tone0">3</TH> <TH class="tone0">R</TH> <TH class="tone0">　</TH> <TH class="tone0">Lyn</TH> <TH class="tone0">　</TH> </TR> <TR> <TH class="tone1">8</TH> <TH class="tone1">4:51:19</TH> <TH class="tone1">3</TH> <TH class="tone1">R</TH> <TH class="tone1">　</TH> <TH class="tone1">Cam</TH> <TH class="tone1">　</TH> </TR> <TR> <TH class="tone0">9</TH> <TH class="tone0">5:11:46</TH> <TH class="tone0">3</TH> <TH class="tone0">R</TH> <TH class="tone0">　</TH> <TH class="tone0">UMa</TH> <TH class="tone0">　</TH> </TR> </TABLE> <BR> <TABLE border="0" width="400" cellspacing="0" cellpadding="0" align="center"> <TR> <TD><IMG alt="μUMa 輻射点位置" src="fig_01.gif" width="400" height="300"></TD> </TR> </TABLE> <TABLE border="0" width="400" cellspacing="1" cellpadding="0" align="center"> <TR> <TD id="color">大まかな流星経路と輻射点位置を示す。なお、流星経路は観測者の記憶から再現したものであり、プロット観測によるものではない。</TD> </TR> <TR> <TD align="right" class="ss" id="color"><STRONG>StellaNavigator Ver.5</STRONG> にて作成</TD> </TR> </TABLE> <BR> <DIV align="right" class="author">〔L!b〕</DIV> <HR size="1"> <DIV align="right" class="jump">| <A href="../../index.html" target="_top">観測報告1999</A> | <A href="../../../index.html" target="_top">観測報告</A> | <A href="../../../../index.html" target="_top">観測</A> | <A href="../../../../../../index.html" target="_top">まるせのぺーじ</A> |</DIV> </DIV> </BODY>