https://www.astro-init.top/index.php?action=history&feed=atom&title=2019%E5%B9%B4USAAAO%E5%86%B3%E8%B5%9B%E7%AC%AC3%E9%A2%98 2026-05-05T10:49:46Z 本wiki的该页面的版本历史 MediaWiki 1.32.2 https://www.astro-init.top/index.php?title=2019%E5%B9%B4USAAAO%E5%86%B3%E8%B5%9B%E7%AC%AC3%E9%A2%98&diff=1716&oldid=prev 2020-03-07T09:40:21Z

<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;">2020年3月7日 (六) 09:40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>==英文题目==</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>==英文题目==</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;"></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>3. (7 points) You are in the northern hemisphere and are observing rise of star A with declination δ = -8 <del class="diffchange diffchange-inline">degrees</del>, and at the same time a star B with declination δ = +16 <del class="diffchange diffchange-inline">degrees </del>is setting. What will happen first: next setting of the star A or rising of the star B?</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>3. (7 points) You are in the northern hemisphere and are observing rise of star A with declination <ins class="diffchange diffchange-inline">$$</ins>δ = -8<ins class="diffchange diffchange-inline">^{\circ}$$</ins>, and at the same time a star B with declination <ins class="diffchange diffchange-inline">$$</ins>δ = +16<ins class="diffchange diffchange-inline">^{\circ}$$ </ins>is setting. What will happen first: next setting of the star A or rising of the star B?</div></td></tr> <!-- diff cache key astro_init-astro_:diff::1.12:old-1698:rev-1716 --> </table>

Jingsong Guo https://www.astro-init.top/index.php?title=2019%E5%B9%B4USAAAO%E5%86%B3%E8%B5%9B%E7%AC%AC3%E9%A2%98&diff=1698&oldid=prev 2020-03-07T09:17:29Z

<p>创建页面，内容为“==英文题目== 3. (7 points) You are in the northern hemisphere and are observing rise of star A with declination δ = -8 degrees, and at the same time a star B w…”</p> <p><b>新页面</b></p><div>==英文题目==<br /> <br /> 3. (7 points) You are in the northern hemisphere and are observing rise of star A with declination δ = -8 degrees, and at the same time a star B with declination δ = +16 degrees is setting. What will happen first: next setting of the star A or rising of the star B?</div>

Jingsong Guo