https://www.astro-init.top/index.php?action=history&feed=atom&title=2017%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC17%E9%A2%98-%E9%BB%91%E6%B4%9E 2026-05-04T15:47:42Z 本wiki的该页面的版本历史 MediaWiki 1.32.2 https://www.astro-init.top/index.php?title=2017%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC17%E9%A2%98-%E9%BB%91%E6%B4%9E&diff=1264&oldid=prev 2019-09-18T12:55:07Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hans-CN"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">←上一版本</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">2019年9月18日 (三) 12:55的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6" >第6行：</td> <td colspan="2" class="diff-lineno">第6行：</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(l)计算S2真实轨道的半长轴、半短轴的长度以及轨道偏心率；</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(l)计算S2真实轨道的半长轴、半短轴的长度以及轨道偏心率；</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">[[文件:2017年CNAO决赛第17题图.png|缩略图|2017年CNAO决赛第17题图]]</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(2)计算中小黑洞质量和施瓦西半径。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(2)计算中小黑洞质量和施瓦西半径。</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== 解答 ==</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>==解答==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">[[文件:2017年CNAO第17题图.png|缩略图|2017年CNAO决赛第17题图]]</del></div></td><td colspan="2"> </td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;br /&gt;</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;br /&gt;</div></td></tr> </table>

某九流辣鸡民科 https://www.astro-init.top/index.php?title=2017%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC17%E9%A2%98-%E9%BB%91%E6%B4%9E&diff=1259&oldid=prev 2019-09-18T12:52:51Z

<p>创建页面，内容为“{{需要解答}} 17、（低年组和高年组）黑洞 由于黑洞不发光，我们没有办法直接观测到它，但有很多间接观测证据可以证实…”</p> <p><b>新页面</b></p><div>{{需要解答}}<br /> <br /> 17、（低年组和高年组）黑洞<br /> <br /> 由于黑洞不发光，我们没有办法直接观测到它，但有很多间接观测证据可以证实银河中心存在黑洞。通过长期监测，研究人员发现一颗编号为S2的恒星在以15.2年为周期绕一颗名为Sagittarius A* (Sgr A*)的不可见天体旋转。观测记录如图所示。已知轨道半长轴与地球观测者视线方向的夹角为45°，轨道半短轴与地球观测者视线方向垂直，SgrA*到观测者的距离为8kpc。<br /> <br /> (l)计算S2真实轨道的半长轴、半短轴的长度以及轨道偏心率；<br /> <br /> (2)计算中小黑洞质量和施瓦西半径。<br /> <br /> == 解答 ==<br /> [[文件:2017年CNAO第17题图.png|缩略图|2017年CNAO决赛第17题图]]<br /> &lt;br /&gt;</div>

某九流辣鸡民科