２００５年５月観測報告

<BODY marginwidth="20" marginheight="20" topmargin="20" leftmargin="20"> <DIV class="standard_width"> <H1>■２００５年５月観測報告</H1> <p>幻の書とされる天文ガイド６６年５月号臨時増刊のイケヤ・セキ彗星写真集をヤフオクでついにゲット！天ガはもうすぐ創刊５００号となるが、全冊コンプリートまであと７冊。古本ショップ＆ヤフオクでバックナンバー探しが続く。</p> <HR size="1"> <H3>■観測結果</H3> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR valign="top"> <TD width="80"><STRONG>観測地：</STRONG></TD> <TD width="400">静岡県御殿場市古沢<BR> 東経138°56′36″　北緯35°20′00″</TD> </TR> <TR valign="top"> <TD width="80"><STRONG>観測者：</STRONG></TD> <TD width="400">東の観測装置</TD> </TR> <TR valign="top"> <TD width="80"><STRONG>観測方法：</STRONG></TD> <TD width="400">眼視プロット観測（<strong>プ</strong>）　眼視計数観測（<strong>計</strong>）</TD> </TR> </TABLE> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR valign="bottom"> <TH class="tone4"><SPAN class="white">日付</SPAN></TH> <TH class="tone4"><SPAN class="white">開始</SPAN></TH> <TH class="tone4"><SPAN class="white">終了</SPAN></TH> <TH class="tone4"><SPAN class="white">分</SPAN></TH> <TH class="tone4"><SPAN class="white">全<BR>流<BR>星</SPAN></TH> <TH class="tone4"><SPAN class="white">散<BR>在</SPAN></TH> <TH class="tone4"><SPAN class="white">４<BR>月<BR>う<BR>し<BR>か<BR>い<BR>α</SPAN></TH> <TH class="tone4"><SPAN class="white">み<BR>ず<BR>が<BR>め<BR>η</SPAN></TH> <TH class="tone4"><SPAN class="white">こ<BR>と<BR>α</SPAN></TH> <TH class="tone4"><SPAN class="white">５<BR>月<BR>う<BR>し<BR>か<BR>い<BR>α</SPAN></TH> <TH class="tone4"><SPAN class="white">最<BR>微</SPAN></TH> <TH class="tone4"><SPAN class="white">雲<BR>量</SPAN></TH> <TH class="tone4"><SPAN class="white">方<BR>向</SPAN></TH> <TH class="tone4"><SPAN class="white">観<BR>測<BR>方<BR>法</SPAN></TH> </TR> <TR> <TD colspan="14" class="tone2"><STRONG>　2005年5月</STRONG></TD> </TR> <TR> <TH class="tone0"><SPAN class="color">3/4</SPAN></TH> <TH class="tone0"><SPAN class="color">2:00</SPAN></TH> <TH class="tone0"><SPAN class="color">3:00</SPAN></TH> <TH class="tone0"><SPAN class="color">60</SPAN></TH> <TH class="tone0"><SPAN class="black">62</SPAN></TH> <TH class="tone0"><SPAN class="black">36</SPAN></TH> <TH class="tone0"><SPAN class="black">0</SPAN></TH> <TH class="tone0"><SPAN class="red">26</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="color">6.0</SPAN></TH> <TH class="tone0"><SPAN class="color">0</SPAN></TH> <TH class="tone0"><SPAN class="color">Z</SPAN></TH> <TH class="tone0"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">5/6</SPAN></TH> <TH class="tone1"><SPAN class="color">19:45</SPAN></TH> <TH class="tone1"><SPAN class="color">20:45</SPAN></TH> <TH class="tone1"><SPAN class="color">60</SPAN></TH> <TH class="tone1"><SPAN class="black">17</SPAN></TH> <TH class="tone1"><SPAN class="black">17</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="red">-</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="color">5.5</SPAN></TH> <TH class="tone1"><SPAN class="color">2</SPAN></TH> <TH class="tone1"><SPAN class="color">Z</SPAN></TH> <TH class="tone1"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">7/8</SPAN></TH> <TH class="tone0"><SPAN class="color">2:30</SPAN></TH> <TH class="tone0"><SPAN class="color">3:30</SPAN></TH> <TH class="tone0"><SPAN class="color">60</SPAN></TH> <TH class="tone0"><SPAN class="black">69</SPAN></TH> <TH class="tone0"><SPAN class="black">41</SPAN></TH> <TH class="tone0"><SPAN class="black">0</SPAN></TH> <TH class="tone0"><SPAN class="red">28</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="color">6.3</SPAN></TH> <TH class="tone0"><SPAN class="color">0</SPAN></TH> <TH class="tone0"><SPAN class="color">Z</SPAN></TH> <TH class="tone0"><SPAN class="color">計</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">8/9</SPAN></TH> <TH class="tone1"><SPAN class="color">2:30</SPAN></TH> <TH class="tone1"><SPAN class="color">3:30</SPAN></TH> <TH class="tone1"><SPAN class="color">60</SPAN></TH> <TH class="tone1"><SPAN class="black">55</SPAN></TH> <TH class="tone1"><SPAN class="black">33</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="red">22</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="color">6.0</SPAN></TH> <TH class="tone1"><SPAN class="color">1</SPAN></TH> <TH class="tone1"><SPAN class="color">Z</SPAN></TH> <TH class="tone1"><SPAN class="color">計</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">9/10</SPAN></TH> <TH class="tone0"><SPAN class="color">2:00</SPAN></TH> <TH class="tone0"><SPAN class="color">3:00</SPAN></TH> <TH class="tone0"><SPAN class="color">60</SPAN></TH> <TH class="tone0"><SPAN class="black">17</SPAN></TH> <TH class="tone0"><SPAN class="black">11</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="red">6</SPAN></TH> <TH class="tone0"><SPAN class="black">0</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="color">5.0</SPAN></TH> <TH class="tone0"><SPAN class="color">2</SPAN></TH> <TH class="tone0"><SPAN class="color">Z</SPAN></TH> <TH class="tone0"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">10/11</SPAN></TH> <TH class="tone1"><SPAN class="color">21:00</SPAN></TH> <TH class="tone1"><SPAN class="color">22:00</SPAN></TH> <TH class="tone1"><SPAN class="color">60</SPAN></TH> <TH class="tone1"><SPAN class="black">26</SPAN></TH> <TH class="tone1"><SPAN class="black">26</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="red">-</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="color">5.7</SPAN></TH> <TH class="tone1"><SPAN class="color">1</SPAN></TH> <TH class="tone1"><SPAN class="color">Z</SPAN></TH> <TH class="tone1"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">11/12</SPAN></TH> <TH class="tone0"><SPAN class="color">21:00</SPAN></TH> <TH class="tone0"><SPAN class="color">22:00</SPAN></TH> <TH class="tone0"><SPAN class="color">60</SPAN></TH> <TH class="tone0"><SPAN class="black">23</SPAN></TH> <TH class="tone0"><SPAN class="black">22</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="red">-</SPAN></TH> <TH class="tone0"><SPAN class="black">1</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="color">5.5</SPAN></TH> <TH class="tone0"><SPAN class="color">1</SPAN></TH> <TH class="tone0"><SPAN class="color">Z</SPAN></TH> <TH class="tone0"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">15/16</SPAN></TH> <TH class="tone1"><SPAN class="color">21:00</SPAN></TH> <TH class="tone1"><SPAN class="color">22:00</SPAN></TH> <TH class="tone1"><SPAN class="color">60</SPAN></TH> <TH class="tone1"><SPAN class="black">19</SPAN></TH> <TH class="tone1"><SPAN class="black">19</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="red">-</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="color">5.5</SPAN></TH> <TH class="tone1"><SPAN class="color">1</SPAN></TH> <TH class="tone1"><SPAN class="color">Z</SPAN></TH> <TH class="tone1"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">17/18</SPAN></TH> <TH class="tone0"><SPAN class="color">20:00</SPAN></TH> <TH class="tone0"><SPAN class="color">21:00</SPAN></TH> <TH class="tone0"><SPAN class="color">60</SPAN></TH> <TH class="tone0"><SPAN class="black">13</SPAN></TH> <TH class="tone0"><SPAN class="black">13</SPAN></TH> <TH class="tone0"><SPAN class="black">-</SPAN></TH> <TH class="tone0"><SPAN class="red">-</SPAN></TH> <TH class="tone0"><SPAN class="black">0</SPAN></TH> <TH class="tone0"><SPAN class="black">0</SPAN></TH> <TH class="tone0"><SPAN class="color">5.3</SPAN></TH> <TH class="tone0"><SPAN class="color">0</SPAN></TH> <TH class="tone0"><SPAN class="color">Z</SPAN></TH> <TH class="tone0"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">18/19</SPAN></TH> <TH class="tone1"><SPAN class="color">21:00</SPAN></TH> <TH class="tone1"><SPAN class="color">22:00</SPAN></TH> <TH class="tone1"><SPAN class="color">60</SPAN></TH> <TH class="tone1"><SPAN class="black">17</SPAN></TH> <TH class="tone1"><SPAN class="black">17</SPAN></TH> <TH class="tone1"><SPAN class="black">-</SPAN></TH> <TH class="tone1"><SPAN class="red">-</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="black">0</SPAN></TH> <TH class="tone1"><SPAN class="color">5.5</SPAN></TH> <TH class="tone1"><SPAN class="color">2</SPAN></TH> <TH class="tone1"><SPAN class="color">Z</SPAN></TH> <TH class="tone1"><SPAN class="color">プ</SPAN></TH> </TR> <TR> <TH class="tone2"><SPAN class="color">合計</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> <TH class="tone2"><SPAN class="color">600</SPAN></TH> <TH class="tone2"><SPAN class="black">318</SPAN></TH> <TH class="tone2"><SPAN class="black">235</SPAN></TH> <TH class="tone2"><SPAN class="black">0</SPAN></TH> <TH class="tone2"><SPAN class="red">82</SPAN></TH> <TH class="tone2"><SPAN class="black">1</SPAN></TH> <TH class="tone2"><SPAN class="black">0</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> <TH class="tone2"><SPAN class="color">　</SPAN></TH> </TR> </TABLE> <H4>■みずがめ座η流星群</H4> <P><IMG alt="ＨＲ" src="hr.gif" width="480" height="240"></P> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR> <TH align="left" colspan="13" class="tone0"><SPAN class="color">光度分布　2005年5月3/4日</SPAN></TH> </TR> <TR> <TH class="tone4"><SPAN class="white">　</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">0</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">4</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">5</SPAN></TH> <TH class="tone4"><SPAN class="white">合計</SPAN></TH> <TH class="tone4"><SPAN class="white">平均</SPAN></TH> <TH class="tone4"><SPAN class="white">最微</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">ηみずがめ</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">1</SPAN></TH> <TH class="tone0"><SPAN class="red">3</SPAN></TH> <TH class="tone0"><SPAN class="red">6</SPAN></TH> <TH class="tone0"><SPAN class="red">8</SPAN></TH> <TH class="tone0"><SPAN class="red">6</SPAN></TH> <TH class="tone0"><SPAN class="red">2</SPAN></TH> <TH class="tone0"><SPAN class="red">26</SPAN></TH> <TH class="tone0"><SPAN class="red">2.81</SPAN></TH> <TH class="tone0"><SPAN class="color">6.0</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">散在</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">3</SPAN></TH> <TH class="tone1"><SPAN class="black">6</SPAN></TH> <TH class="tone1"><SPAN class="black">18</SPAN></TH> <TH class="tone1"><SPAN class="black">9</SPAN></TH> <TH class="tone1"><SPAN class="black">36</SPAN></TH> <TH class="tone1"><SPAN class="black">3.92</SPAN></TH> <TH class="tone1"><SPAN class="color">6.0</SPAN></TH> </TR> </TABLE> <P><IMG alt="光度分布" src="mag_01.gif" width="480" height="240"></P> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR> <TH align="left" colspan="13" class="tone0"><SPAN class="color">光度分布　2005年5月7/8日</SPAN></TH> </TR> <TR> <TH class="tone4"><SPAN class="white">　</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">0</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">4</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">5</SPAN></TH> <TH class="tone4"><SPAN class="white">合計</SPAN></TH> <TH class="tone4"><SPAN class="white">平均</SPAN></TH> <TH class="tone4"><SPAN class="white">最微</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">ηみずがめ</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">2</SPAN></TH> <TH class="tone0"><SPAN class="red">3</SPAN></TH> <TH class="tone0"><SPAN class="red">9</SPAN></TH> <TH class="tone0"><SPAN class="red">10</SPAN></TH> <TH class="tone0"><SPAN class="red">4</SPAN></TH> <TH class="tone0"><SPAN class="red">28</SPAN></TH> <TH class="tone0"><SPAN class="red">3.39</SPAN></TH> <TH class="tone0"><SPAN class="color">6.3</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">散在</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">1</SPAN></TH> <TH class="tone1"><SPAN class="black">3</SPAN></TH> <TH class="tone1"><SPAN class="black">6</SPAN></TH> <TH class="tone1"><SPAN class="black">19</SPAN></TH> <TH class="tone1"><SPAN class="black">12</SPAN></TH> <TH class="tone1"><SPAN class="black">41</SPAN></TH> <TH class="tone1"><SPAN class="black">3.93</SPAN></TH> <TH class="tone1"><SPAN class="color">6.3</SPAN></TH> </TR> </TABLE> <P><IMG alt="光度分布" src="mag_02.gif" width="480" height="240"></P> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR> <TH align="left" colspan="13" class="tone0"><SPAN class="color">光度分布　2005年5月8/9日</SPAN></TH> </TR> <TR> <TH class="tone4"><SPAN class="white">　</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">-1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">0</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">1</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">2</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">3</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">4</SPAN></TH> <TH width="20" class="tone4"><SPAN class="white">5</SPAN></TH> <TH class="tone4"><SPAN class="white">合計</SPAN></TH> <TH class="tone4"><SPAN class="white">平均</SPAN></TH> <TH class="tone4"><SPAN class="white">最微</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">ηみずがめ</SPAN></TH> <TH class="tone0"><SPAN class="red">1</SPAN></TH> <TH class="tone0"><SPAN class="red">　</SPAN></TH> <TH class="tone0"><SPAN class="red">1</SPAN></TH> <TH class="tone0"><SPAN class="red">1</SPAN></TH> <TH class="tone0"><SPAN class="red">1</SPAN></TH> <TH class="tone0"><SPAN class="red">2</SPAN></TH> <TH class="tone0"><SPAN class="red">6</SPAN></TH> <TH class="tone0"><SPAN class="red">7</SPAN></TH> <TH class="tone0"><SPAN class="red">3</SPAN></TH> <TH class="tone0"><SPAN class="red">22</SPAN></TH> <TH class="tone0"><SPAN class="red">2.82</SPAN></TH> <TH class="tone0"><SPAN class="color">6.0</SPAN></TH> </TR> <TR> <TH class="tone1"><SPAN class="color">散在</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">　</SPAN></TH> <TH class="tone1"><SPAN class="black">1</SPAN></TH> <TH class="tone1"><SPAN class="black">2</SPAN></TH> <TH class="tone1"><SPAN class="black">5</SPAN></TH> <TH class="tone1"><SPAN class="black">17</SPAN></TH> <TH class="tone1"><SPAN class="black">8</SPAN></TH> <TH class="tone1"><SPAN class="black">33</SPAN></TH> <TH class="tone1"><SPAN class="black">3.88</SPAN></TH> <TH class="tone1"><SPAN class="color">6.0</SPAN></TH> </TR> </TABLE> <P><IMG alt="光度分布" src="mag_03.gif" width="480" height="240"></P> <H4>■火球情報</H4> <TABLE border="0" width="480" cellspacing="0" cellpadding="1" align="center"> <TR> <TH class="tone4"><SPAN class="white">No.</SPAN></TH> <TH colspan="5" class="tone4"><SPAN class="white">日時（日本標準時）</SPAN></TH> <TH class="tone4"><SPAN class="white">出現星座</SPAN></TH> <TH class="tone4"><SPAN class="white">等級</SPAN></TH> <TH class="tone4"><SPAN class="white">帰属</SPAN></TH> <TH class="tone4"><SPAN class="white">速さ</SPAN></TH> <TH class="tone4"><SPAN class="white">色</SPAN></TH> <TH class="tone4"><SPAN class="white">備考</SPAN></TH> </TR> <TR> <TH class="tone0"><SPAN class="color">1</SPAN></TH> <TH class="tone0"><SPAN class="color">2005</SPAN></TH> <TH class="tone0"><SPAN class="color">5</SPAN></TH> <TH class="tone0"><SPAN class="color">8/9</SPAN></TH> <TH class="tone0"><SPAN class="color">3:18:06</SPAN></TH> <TH class="tone0"><SPAN class="color">±5秒</SPAN></TH> <TH class="tone0"><SPAN class="color">Oph→Oph</SPAN></TH> <TH class="tone0"><SPAN class="color">-3</SPAN></TH> <TH class="tone0"><SPAN class="color">ηみずがめ</SPAN></TH> <TH class="tone0"><SPAN class="color">とても速い</SPAN></TH> <TH class="tone0"><SPAN class="color">青白</SPAN></TH> <TH class="tone0"><SPAN class="color">爆発１回</SPAN></TH> </TR> </TABLE> <HR size="1"> <H3>■観測日記</H3> <H5>●5月3/4日</H5> <UL> みずがめ群はマイナス等級こそないものの順調に増加中。今夜も晴天が約束されている様子。どこまで数を伸ばせるか！？数が多いのも良いがそろそろ火球を見たい！ </UL> <H5>●5月4/5日</H5> <UL> 夕方から突如雲に覆われる。いつもの富士山御殿場口に移動すれば晴れていそうだがここ数日のなれない農作業で疲れがたまっていたため、０１時に目が覚めるものの布団から抜け出せず。 </UL> <H5>●5月5/6日</H5> <UL> 夕方から雲が徐々に広がりつつある中、何とか観測成立。あまり良くない条件であったこともあり、特に目立った変化なし。 </UL> <H5>●5月7/8日</H5> <UL> ３／４と同様に見事な透明度となる。天頂から南へ流れ下る天の川が見事！みずがめ群も前回同様数は多いが明るいものがないため、少し物足りない。 </UL> <H5>●5月8/9日</H5> <UL> 透明度は良いが薄雲の往来に悩まされる。みずがめ群は昨日よりやや減少したが、火球を含むマイナス等級の群流星が出現しておおむね満足！ </UL> <H5>●5月9/10日</H5> <UL> ２時前に目が覚めて外に飛び出すが、全天を薄雲が覆い何とも悲惨な空。条件の悪化に伴い、みずがめ群は激減。 </UL> <H5>●5月10/11日</H5> <UL> 天頂付近の半円形のかんむり座は良く分かるが、低高度の場所はいつもにも増してキレが悪い。こと座α群は輻射点高度がまだ低いこともあり出現はなかった。 </UL> <H5>●5月11/12日</H5> <UL> 夕方滲んだ三日月が見えたことである程度想像できたが、昨晩同様に条件はいまいち。４等のこと群が見られた以外は特に異常なし。 </UL> <H5>●5月15/16日</H5> <UL> ようやく悪天候・寒さから開放されて、気持ちの良い晴天。かんむり座を挟んでうしかい座東部からヘルクレス座西部で群活動を感じるが輻射点としてはまとまらず。 </UL> <H5>●5月17/18日</H5> <UL> 昨日同様ヘルクレス座西部での群活動を感じる。こと座α群も盛りを過ぎたようで出現はなかった。 </UL> <H5>●5月18/19日</H5> <UL> 猛烈な南風に乗って雨がパラつく中での観測。月明かりの存在を感じないほど透明度がよいが、特に異常は認められなかった。 </UL> <DIV align="right" class="author">〔東の観測装置〕</DIV> <HR size="1"> <DIV align="right" class="jump">| <A href="../../index.html" target="_top">観測報告2005</A> | <A href="../../../index.html" 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