https://www.astro-init.top/index.php?action=history&feed=atom&title=2020%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC14%E9%A2%98-%E5%9C%9F%E6%98%9F%E7%8E%AF%E7%BC%9D 2026-04-29T17:43:58Z 本wiki的该页面的版本历史 MediaWiki 1.32.2 https://www.astro-init.top/index.php?title=2020%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC14%E9%A2%98-%E5%9C%9F%E6%98%9F%E7%8E%AF%E7%BC%9D&diff=2289&oldid=prev 2022-05-06T20:09:43Z

<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;">2022年5月6日 (五) 20:09的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >第7行：</td> <td colspan="2" class="diff-lineno">第7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;"><div>对于天空中比较小的张角来说，角分辨率大小为$$206265arcsec \times 天体的直径/距离$$。</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>对于天空中比较小的张角来说，角分辨率大小为$$206265arcsec \times 天体的直径/距离$$。</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>其中，角分辨率为$$<del class="diffchange diffchange-inline">5arcse</del>$$<del class="diffchange diffchange-inline">c，距离为</del>$$825000km$$，所以可解出能分辨的最窄缝隙为：</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>其中，角分辨率为$$<ins class="diffchange diffchange-inline">5arcsec</ins>$$<ins class="diffchange diffchange-inline">，距离为</ins>$$825000km$$，所以可解出能分辨的最窄缝隙为：</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="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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</div></td></tr> </table>

Jingsong Guo https://www.astro-init.top/index.php?title=2020%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC14%E9%A2%98-%E5%9C%9F%E6%98%9F%E7%8E%AF%E7%BC%9D&diff=2288&oldid=prev 2022-05-06T20:09:20Z

<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;">2022年5月6日 (五) 20:09的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5" >第5行：</td> <td colspan="2" class="diff-lineno">第5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>==解答==</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>==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">对于天空中比较小的张角来说，角分辨率大小为206265arcsec</del>$$\times$$<del class="diffchange diffchange-inline">天体的直径/距离。</del></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">对于天空中比较小的张角来说，角分辨率大小为</ins>$$<ins class="diffchange diffchange-inline">206265arcsec </ins>\times <ins class="diffchange diffchange-inline">天体的直径/距离</ins>$$<ins class="diffchange diffchange-inline">。</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;"></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><del class="diffchange diffchange-inline">其中，角分辨率为5arcsec，距离为82500千米，所以可解出能分辨的最窄缝隙为：</del></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">其中，角分辨率为$$5arcse$$c，距离为$$825000km$$，所以可解出能分辨的最窄缝隙为：</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;"></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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</div></td></tr> </table>

Jingsong Guo https://www.astro-init.top/index.php?title=2020%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC14%E9%A2%98-%E5%9C%9F%E6%98%9F%E7%8E%AF%E7%BC%9D&diff=2279&oldid=prev 2022-04-30T11:24:03Z

<p>添加换行符。</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;">2022年4月30日 (六) 11:24的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >第1行：</td> <td colspan="2" class="diff-lineno">第1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;"><div>==题目==</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>==题目==</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>14.（仅低年组）土星环缝</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>14.（仅低年组）土星环缝</div></td></tr> <tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;"></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>　　土星环是太阳系八颗行星中最突出的行星环，土星环中存在由于共振而产生的缝隙，其中最为明显的是卡西尼环缝。假设我们将发射一个探测器来近距离观测土星环缝的结构，其角分辨率为5 arcsec，探测器与土星之间最近的距离为825000km，请问该探测器能够探测的土星光环的最窄缝隙为多大？</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>　　土星环是太阳系八颗行星中最突出的行星环，土星环中存在由于共振而产生的缝隙，其中最为明显的是卡西尼环缝。假设我们将发射一个探测器来近距离观测土星环缝的结构，其角分辨率为5 arcsec，探测器与土星之间最近的距离为825000km，请问该探测器能够探测的土星光环的最窄缝隙为多大？</div></td></tr> <tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;"></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>==解答==</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>==解答==</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>对于天空中比较小的张角来说，角分辨率大小为206265arcsec$$\times$$天体的直径/距离。</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>对于天空中比较小的张角来说，角分辨率大小为206265arcsec$$\times$$天体的直径/距离。</div></td></tr> <tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;"></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>其中，角分辨率为5arcsec，距离为82500千米，所以可解出能分辨的最窄缝隙为：</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>其中，角分辨率为5arcsec，距离为82500千米，所以可解出能分辨的最窄缝隙为：</div></td></tr> <tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;"></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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</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>$$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</div></td></tr> </table>

M81 https://www.astro-init.top/index.php?title=2020%E5%B9%B4CNAO%E5%86%B3%E8%B5%9B%E7%AC%AC14%E9%A2%98-%E5%9C%9F%E6%98%9F%E7%8E%AF%E7%BC%9D&diff=2277&oldid=prev 2022-04-30T11:17:15Z

<p>2020年CNAO决赛第14题-土星环缝</p> <p><b>新页面</b></p><div>==题目==<br /> 14.（仅低年组）土星环缝<br /> 　　土星环是太阳系八颗行星中最突出的行星环，土星环中存在由于共振而产生的缝隙，其中最为明显的是卡西尼环缝。假设我们将发射一个探测器来近距离观测土星环缝的结构，其角分辨率为5 arcsec，探测器与土星之间最近的距离为825000km，请问该探测器能够探测的土星光环的最窄缝隙为多大？<br /> ==解答==<br /> 对于天空中比较小的张角来说，角分辨率大小为206265arcsec$$\times$$天体的直径/距离。<br /> 其中，角分辨率为5arcsec，距离为82500千米，所以可解出能分辨的最窄缝隙为：<br /> $$d=\frac{5arcsec}{206265arcsec}\times825000km\approx20km$$</div>

M81