{"id":261,"date":"2019-04-09T01:58:58","date_gmt":"2019-04-09T05:58:58","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/?post_type=chapter&#038;p=261"},"modified":"2019-04-09T20:57:45","modified_gmt":"2019-04-10T00:57:45","slug":"appendix-d-astronomical-data","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/bcitphys8400\/chapter\/appendix-d-astronomical-data\/","title":{"raw":"Appendix D: Astronomical Data","rendered":"Appendix D: Astronomical Data"},"content":{"raw":"<div class=\"os-table\">\r\n<table id=\"fs-id1171242141206\" summary=\"Table D1 Astronomical Data \">\r\n<thead>\r\n<tr valign=\"top\">\r\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Celestial Object<\/th>\r\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Mean Distance from Sun (million km)<\/th>\r\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Period of Revolution (d = days) (y = years)<\/th>\r\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Period of Rotation at Equator<\/th>\r\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Eccentricity of Orbit<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Sun<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">27 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Mercury<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">57.9<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">88 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">59 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.206<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Venus<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">108.2<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">224.7 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">243 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.007<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Earth<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">149.6<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">365.26 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">23 h 56 min 4 s<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.017<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Mars<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">227.9<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">687 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">24 h 37 min 23 s<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.093<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Jupiter<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">778.4<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">11.9 y<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">9 h 50 min 30 s<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.048<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Saturn<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1426.7<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">29.5 6<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">10 h 14 min<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.054<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Uranus<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">2871.0<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">84.0 y<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">17 h 14 min<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.047<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Neptune<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">4498.3<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">164.8 y<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">16 h<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.009<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Earth\u2019s Moon<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">149.6 (0.386 from Earth)<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">27.3 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">27.3 d<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.055<\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Celestial Object<\/strong><\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Equatorial Diameter (km)<\/strong><\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Mass (Earth = 1)<\/strong><\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Density (g\/cm<sup>3<\/sup>)<\/strong><\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Sun<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1,392,000<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">333,000.00<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1.4<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Mercury<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">4879<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.06<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">5.4<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Venus<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">12,104<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.82<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">5.2<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Earth<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">12,756<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1.00<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">5.5<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Mars<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">6794<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.11<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">3.9<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Jupiter<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">142,984<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">317.83<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1.3<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Saturn<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">120,536<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">95.16<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.7<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Uranus<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">51,118<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">14.54<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1.3<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Neptune<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">49,528<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">17.15<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">1.6<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<tr valign=\"top\">\r\n<td data-align=\"left\" data-valign=\"top\">Earth\u2019s Moon<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">3476<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">0.01<\/td>\r\n<td data-align=\"left\" data-valign=\"top\">3.3<\/td>\r\n<td data-align=\"left\" data-valign=\"top\"><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div class=\"os-caption-container\"><em><span class=\"os-title-label\">Table\u00a0<\/span><span class=\"os-number\">D1<\/span><span class=\"os-divider\">\u00a0<\/span><span class=\"os-title\" data-type=\"title\">Astronomical Data<\/span><\/em><span class=\"os-divider\"><\/span><span class=\"os-caption\"><\/span><\/div>\r\n<\/div>\r\n<p id=\"fs-id1171239846576\"><strong data-effect=\"bold\">Other Data:<\/strong><\/p>\r\n<p id=\"fs-id1171242141252\">Mass of Earth:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1964-Frame\"><span class=\"MathJax_MathContainer\"><span>5.97\u00d71024kg<\/span><\/span><\/span><\/p>\r\n<p id=\"fs-id1171242558227\">Mass of the Moon:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1965-Frame\"><span class=\"MathJax_MathContainer\"><span>7.36\u00d71022kg<\/span><\/span><\/span><\/p>\r\n<p id=\"fs-id1171242391693\">Mass of the Sun:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1966-Frame\"><span class=\"MathJax_MathContainer\"><span>1.99\u00d71030kg<\/span><\/span><\/span><\/p>\r\n&nbsp;\r\n<div class=\"textbox\"><em>Download for free at http:\/\/cnx.org\/contents\/af275420-6050-4707-995c-57b9cc13c358@11.1<\/em><\/div>","rendered":"<div class=\"os-table\">\n<table id=\"fs-id1171242141206\" summary=\"Table D1 Astronomical Data\">\n<thead>\n<tr valign=\"top\">\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Celestial Object<\/th>\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Mean Distance from Sun (million km)<\/th>\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Period of Revolution (d = days) (y = years)<\/th>\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Period of Rotation at Equator<\/th>\n<th scope=\"col\" data-align=\"left\" data-valign=\"top\">Eccentricity of Orbit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Sun<\/td>\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\n<td data-align=\"left\" data-valign=\"top\">27 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">\u2212<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Mercury<\/td>\n<td data-align=\"left\" data-valign=\"top\">57.9<\/td>\n<td data-align=\"left\" data-valign=\"top\">88 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">59 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.206<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Venus<\/td>\n<td data-align=\"left\" data-valign=\"top\">108.2<\/td>\n<td data-align=\"left\" data-valign=\"top\">224.7 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">243 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.007<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Earth<\/td>\n<td data-align=\"left\" data-valign=\"top\">149.6<\/td>\n<td data-align=\"left\" data-valign=\"top\">365.26 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">23 h 56 min 4 s<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.017<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Mars<\/td>\n<td data-align=\"left\" data-valign=\"top\">227.9<\/td>\n<td data-align=\"left\" data-valign=\"top\">687 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">24 h 37 min 23 s<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.093<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Jupiter<\/td>\n<td data-align=\"left\" data-valign=\"top\">778.4<\/td>\n<td data-align=\"left\" data-valign=\"top\">11.9 y<\/td>\n<td data-align=\"left\" data-valign=\"top\">9 h 50 min 30 s<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.048<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Saturn<\/td>\n<td data-align=\"left\" data-valign=\"top\">1426.7<\/td>\n<td data-align=\"left\" data-valign=\"top\">29.5 6<\/td>\n<td data-align=\"left\" data-valign=\"top\">10 h 14 min<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.054<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Uranus<\/td>\n<td data-align=\"left\" data-valign=\"top\">2871.0<\/td>\n<td data-align=\"left\" data-valign=\"top\">84.0 y<\/td>\n<td data-align=\"left\" data-valign=\"top\">17 h 14 min<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.047<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Neptune<\/td>\n<td data-align=\"left\" data-valign=\"top\">4498.3<\/td>\n<td data-align=\"left\" data-valign=\"top\">164.8 y<\/td>\n<td data-align=\"left\" data-valign=\"top\">16 h<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.009<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Earth\u2019s Moon<\/td>\n<td data-align=\"left\" data-valign=\"top\">149.6 (0.386 from Earth)<\/td>\n<td data-align=\"left\" data-valign=\"top\">27.3 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">27.3 d<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.055<\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Celestial Object<\/strong><\/td>\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Equatorial Diameter (km)<\/strong><\/td>\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Mass (Earth = 1)<\/strong><\/td>\n<td data-align=\"left\" data-valign=\"top\"><strong data-effect=\"bold\">Density (g\/cm<sup>3<\/sup>)<\/strong><\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Sun<\/td>\n<td data-align=\"left\" data-valign=\"top\">1,392,000<\/td>\n<td data-align=\"left\" data-valign=\"top\">333,000.00<\/td>\n<td data-align=\"left\" data-valign=\"top\">1.4<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Mercury<\/td>\n<td data-align=\"left\" data-valign=\"top\">4879<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.06<\/td>\n<td data-align=\"left\" data-valign=\"top\">5.4<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Venus<\/td>\n<td data-align=\"left\" data-valign=\"top\">12,104<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.82<\/td>\n<td data-align=\"left\" data-valign=\"top\">5.2<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Earth<\/td>\n<td data-align=\"left\" data-valign=\"top\">12,756<\/td>\n<td data-align=\"left\" data-valign=\"top\">1.00<\/td>\n<td data-align=\"left\" data-valign=\"top\">5.5<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Mars<\/td>\n<td data-align=\"left\" data-valign=\"top\">6794<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.11<\/td>\n<td data-align=\"left\" data-valign=\"top\">3.9<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Jupiter<\/td>\n<td data-align=\"left\" data-valign=\"top\">142,984<\/td>\n<td data-align=\"left\" data-valign=\"top\">317.83<\/td>\n<td data-align=\"left\" data-valign=\"top\">1.3<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Saturn<\/td>\n<td data-align=\"left\" data-valign=\"top\">120,536<\/td>\n<td data-align=\"left\" data-valign=\"top\">95.16<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.7<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Uranus<\/td>\n<td data-align=\"left\" data-valign=\"top\">51,118<\/td>\n<td data-align=\"left\" data-valign=\"top\">14.54<\/td>\n<td data-align=\"left\" data-valign=\"top\">1.3<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Neptune<\/td>\n<td data-align=\"left\" data-valign=\"top\">49,528<\/td>\n<td data-align=\"left\" data-valign=\"top\">17.15<\/td>\n<td data-align=\"left\" data-valign=\"top\">1.6<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<tr valign=\"top\">\n<td data-align=\"left\" data-valign=\"top\">Earth\u2019s Moon<\/td>\n<td data-align=\"left\" data-valign=\"top\">3476<\/td>\n<td data-align=\"left\" data-valign=\"top\">0.01<\/td>\n<td data-align=\"left\" data-valign=\"top\">3.3<\/td>\n<td data-align=\"left\" data-valign=\"top\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"os-caption-container\"><em><span class=\"os-title-label\">Table\u00a0<\/span><span class=\"os-number\">D1<\/span><span class=\"os-divider\">\u00a0<\/span><span class=\"os-title\" data-type=\"title\">Astronomical Data<\/span><\/em><span class=\"os-divider\"><\/span><span class=\"os-caption\"><\/span><\/div>\n<\/div>\n<p id=\"fs-id1171239846576\"><strong data-effect=\"bold\">Other Data:<\/strong><\/p>\n<p id=\"fs-id1171242141252\">Mass of Earth:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1964-Frame\"><span class=\"MathJax_MathContainer\"><span>5.97\u00d71024kg<\/span><\/span><\/span><\/p>\n<p id=\"fs-id1171242558227\">Mass of the Moon:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1965-Frame\"><span class=\"MathJax_MathContainer\"><span>7.36\u00d71022kg<\/span><\/span><\/span><\/p>\n<p id=\"fs-id1171242391693\">Mass of the Sun:<span>\u00a0<\/span><span class=\"MathJax_MathML\" id=\"MathJax-Element-1966-Frame\"><span class=\"MathJax_MathContainer\"><span>1.99\u00d71030kg<\/span><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"textbox\"><em>Download for free at http:\/\/cnx.org\/contents\/af275420-6050-4707-995c-57b9cc13c358@11.1<\/em><\/div>\n","protected":false},"author":615,"menu_order":4,"template":"","meta":{"pb_show_title":"on","pb_short_title":"Appendices","pb_subtitle":"Appendix D: Astronomical 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