{"id":643,"date":"2022-03-02T19:07:49","date_gmt":"2022-03-02T19:07:49","guid":{"rendered":"https:\/\/pressbooks.ccconline.org\/astronomy\/?post_type=chapter&#038;p=643"},"modified":"2022-04-29T19:01:34","modified_gmt":"2022-04-29T19:01:34","slug":"key-terms-19","status":"publish","type":"chapter","link":"https:\/\/pressbooks.ccconline.org\/astronomy\/chapter\/key-terms-19\/","title":{"raw":"Key Terms","rendered":"Key Terms"},"content":{"raw":"<div>\r\n<dl id=\"fs-id1163976927423\">\r\n \t<dt id=\"15\">exoplanet<\/dt>\r\n \t<dd id=\"fs-id1163976557007\">a planet orbiting a star other than our Sun<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163974182467\">\r\n \t<dt id=\"22\">giant molecular clouds<\/dt>\r\n \t<dd id=\"fs-id1163974288071\">large, cold interstellar clouds with diameters of dozens of light-years and typical masses of [latex]{10^5}[\/latex]\u00a0solar masses; found in the spiral arms of galaxies, these clouds are where stars form<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163974213578\">\r\n \t<dt id=\"23\">Herbig-Haro (HH) object<\/dt>\r\n \t<dd id=\"fs-id1163975434837\">luminous knots of gas in an area of star formation that are set to glow by jets of material from a protostar<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163976878780\">\r\n \t<dt id=\"13\">mini-Neptune<\/dt>\r\n \t<dd id=\"fs-id1163976642043\">a planet that is intermediate between the largest terrestrial planet in our solar system (Earth) and the smallest jovian planet (Neptune); generally, mini-Neptunes have sizes between 2.8 and 4 times Earth\u2019s size<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163974218335\">\r\n \t<dt id=\"24\">protostar<\/dt>\r\n \t<dd id=\"fs-id1163974394645\">a very young star still in the process of formation, before nuclear fusion begins<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163974305060\">\r\n \t<dt id=\"25\">stellar wind<\/dt>\r\n \t<dd id=\"fs-id1163974268125\">the outflow of gas, sometimes at speeds as high as hundreds of kilometers per second, from a star<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163976893215\">\r\n \t<dt id=\"12\">super-Earth<\/dt>\r\n \t<dd id=\"fs-id1163976613815\">a planet larger than Earth, generally between 1.4 and 2.8 times the size of our planet<\/dd>\r\n<\/dl>\r\n<dl id=\"fs-id1163976647066\">\r\n \t<dt id=\"16\">transit<\/dt>\r\n \t<dd id=\"fs-id1163974270301\">when one astronomical object moves in front of another<\/dd>\r\n<\/dl>\r\n<\/div>\r\n<div class=\"textbox\">This book was adapted from the following: Fraknoi, A., Morrison, D., &amp; Wolff, S. C. (2016). Key Terms In <i>Astronomy<\/i>. OpenStax. https:\/\/openstax.org\/books\/astronomy\/pages\/21-key-terms under a <a href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">Creative Commons Attribution License 4.0<\/a><\/div>\r\n<div>Access the entire book for free at\u00a0<a href=\"https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction\">https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction<\/a><\/div>","rendered":"<div>\n<dl id=\"fs-id1163976927423\">\n<dt id=\"15\">exoplanet<\/dt>\n<dd id=\"fs-id1163976557007\">a planet orbiting a star other than our Sun<\/dd>\n<\/dl>\n<dl id=\"fs-id1163974182467\">\n<dt id=\"22\">giant molecular clouds<\/dt>\n<dd id=\"fs-id1163974288071\">large, cold interstellar clouds with diameters of dozens of light-years and typical masses of [latex]{10^5}[\/latex]\u00a0solar masses; found in the spiral arms of galaxies, these clouds are where stars form<\/dd>\n<\/dl>\n<dl id=\"fs-id1163974213578\">\n<dt id=\"23\">Herbig-Haro (HH) object<\/dt>\n<dd id=\"fs-id1163975434837\">luminous knots of gas in an area of star formation that are set to glow by jets of material from a protostar<\/dd>\n<\/dl>\n<dl id=\"fs-id1163976878780\">\n<dt id=\"13\">mini-Neptune<\/dt>\n<dd id=\"fs-id1163976642043\">a planet that is intermediate between the largest terrestrial planet in our solar system (Earth) and the smallest jovian planet (Neptune); generally, mini-Neptunes have sizes between 2.8 and 4 times Earth\u2019s size<\/dd>\n<\/dl>\n<dl id=\"fs-id1163974218335\">\n<dt id=\"24\">protostar<\/dt>\n<dd id=\"fs-id1163974394645\">a very young star still in the process of formation, before nuclear fusion begins<\/dd>\n<\/dl>\n<dl id=\"fs-id1163974305060\">\n<dt id=\"25\">stellar wind<\/dt>\n<dd id=\"fs-id1163974268125\">the outflow of gas, sometimes at speeds as high as hundreds of kilometers per second, from a star<\/dd>\n<\/dl>\n<dl id=\"fs-id1163976893215\">\n<dt id=\"12\">super-Earth<\/dt>\n<dd id=\"fs-id1163976613815\">a planet larger than Earth, generally between 1.4 and 2.8 times the size of our planet<\/dd>\n<\/dl>\n<dl id=\"fs-id1163976647066\">\n<dt id=\"16\">transit<\/dt>\n<dd id=\"fs-id1163974270301\">when one astronomical object moves in front of another<\/dd>\n<\/dl>\n<\/div>\n<div class=\"textbox\">This book was adapted from the following: Fraknoi, A., Morrison, D., &amp; Wolff, S. C. (2016). Key Terms In <i>Astronomy<\/i>. OpenStax. https:\/\/openstax.org\/books\/astronomy\/pages\/21-key-terms under a <a href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener noreferrer\">Creative Commons Attribution License 4.0<\/a><\/div>\n<div>Access the entire book for free at\u00a0<a href=\"https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction\">https:\/\/openstax.org\/books\/astronomy\/pages\/1-introduction<\/a><\/div>\n","protected":false},"author":33,"menu_order":11,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[48],"contributor":[],"license":[],"class_list":["post-643","chapter","type-chapter","status-publish","hentry","chapter-type-numberless"],"part":628,"_links":{"self":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/users\/33"}],"version-history":[{"count":2,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/643\/revisions"}],"predecessor-version":[{"id":1084,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/643\/revisions\/1084"}],"part":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/parts\/628"}],"metadata":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapters\/643\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/media?parent=643"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/pressbooks\/v2\/chapter-type?post=643"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/contributor?post=643"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.ccconline.org\/astronomy\/wp-json\/wp\/v2\/license?post=643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}