A Tropic
<span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;">either of the two </span><a href="https://en.m.wiktionary.org/wiki/parallel" title="parallel" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">parallels</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> of </span><a href="https://en.m.wiktionary.org/wiki/latitude" title="latitude" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">latitude</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> 23°27′ </span><a href="https://en.m.wiktionary.org/wiki/north" title="north" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">north</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> and </span><a href="https://en.m.wiktionary.org/wiki/south" title="south" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">south</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> of the </span><a href="https://en.m.wiktionary.org/wiki/equator" title="equator" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">equator</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;">; the farthest points at which the </span><a href="https://en.m.wiktionary.org/wiki/sun" title="sun" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">sun</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> can be directly </span><a href="https://en.m.wiktionary.org/wiki/overhead" title="overhead" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">overhead</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;">; the boundaries of the </span><a href="https://en.m.wiktionary.org/wiki/torrid_zone" title="torrid zone" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">torrid zone</a><span style="color: rgb(34, 34, 34); font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif;"> or </span><a href="https://en.m.wiktionary.org/wiki/tropics" title="tropics" style="margin: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", sans-serif; vertical-align: baseline; background: none rgb(255, 255, 255); color: rgb(107, 75, 161);">tropics</a>