{"id":26808,"date":"2026-03-05T09:05:27","date_gmt":"2026-03-05T17:05:27","guid":{"rendered":"https:\/\/dornsife.usc.edu\/news\/?p=26808"},"modified":"2026-03-12T15:29:44","modified_gmt":"2026-03-12T22:29:44","slug":"why-are-some-stars-always-visible-while-others-come-and-go-with-seasons","status":"publish","type":"post","link":"https:\/\/dornsife.usc.edu\/news\/stories\/why-are-some-stars-always-visible-while-others-come-and-go-with-seasons\/","title":{"rendered":"Why are some stars always visible while others come and go with the\u00a0seasons?"},"content":{"rendered":"\n\n\n    \n                                \n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n<div class=\"inner-wrapper\">\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/star-streak-circle-vahe-peroomian-top-1-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/star-streak-circle-vahe-peroomian-top-1-1920x1080.jpg 1920w,https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/star-streak-circle-vahe-peroomian-top-1-1280x720.jpg 1280w,https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/star-streak-circle-vahe-peroomian-top-1-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Time-lapse of night sky with circular streak pattern of stars over petroglyphs\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n  \n      <div class=\"image-caption\">\n          \n<div class=\"f--field f--description\">\n\n    \n   Petroglyphs carved into a rock, with a long exposure of stars circling one point in the background. Stars near the north celestial pole circle the North Star, Polaris. Photographed in the Eastern Sierra Nevada, Calif. (Photo: Vah\u00e9 Peroomian.)\n\n\n<\/div>\n    <\/div>\n  \n  <div class=\"text-wrapper\">\n          <nav aria-label=\"Breadcrumb\" class=\"breadcrumbs\">\n        <ul>\n                      <li><a href=\"\/news\/stories\/\">News<\/a><\/li>\n                      <li><a href=\"\/news\/stories\/\/?category=science-and-technology\">Science and Technology<\/a><\/li>\n                  <\/ul>\n      <\/nav>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Why are some stars always visible while others come and go with the\u00a0seasons?<\/h1>\n\n\n<\/div>\n    \n          <div class=\"subtitle\">\n            \n<div class=\"f--field f--description\">\n\n    \n  From Earth spinning on its axis and orbiting the Sun to it precessing like a top, lots of factors affect which stars you can see in the sky.\n\n\n<\/div>\n      <\/div>\n    \n           <strong class=\"author-field\"><span >By<\/span><a href=\"mailto:communication@dornsife.usc.edu\">Vah\u00e9 Peroomian<\/a><\/strong>\n    \n          <span class=\"post-date-field\">March 5, 2026<\/span>\n      <\/div>\n<\/div>\n\n\n  <\/div><\/div>\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--social-share \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--social-share\"\n    \n      >\n\n    \n  <div class=\"content-wrapper\">\n    <span class=\"a2a_kit a2a_kit_size_32 addtoany_list\" style=\"line-height: 32px;\">\n      <span class=\"title\">\n        Share\n      <\/span>\n                        <a class=\"a2a_button_copy_link\" target=\"_blank\" href=\"\/#copy_link\" rel=\"nofollow noopener\" title=\"Link\">\n            <span class=\"a2a_svg a2a_s__default a2a_s_copy_link\">\n              <svg height=\"19\" viewBox=\"0 0 19 19\" width=\"19\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m7.43475275 9.52380952-2.17490843 2.26076008c-1.08745421 1.058837-1.68841575 2.518315-1.68841575 4.0350275 0 1.5167124.60096154 2.9475732 1.68841575 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xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m8.14285714 9.42857143c-.17142857 0-.34285714 0-.51428571.08571428l7.28571427 6.34285719c.3428572.2571428.6857143.2571428.9428572 0l7.2857142-6.34285719c-.0857142-.08571428-.2571428-.08571428-.4285714-.08571428zm-1.28571428 1.11428567v.1714286 8.5714286c0 .6857143.6 1.2857143 1.28571428 1.2857143h14.57142856c.6857143 0 1.2857143-.6 1.2857143-1.2857143v-8.5714286c0-.0857143 0-.0857143 0-.1714286l-7.2 6.3428572c-.7714286.6857143-1.8857143.6857143-2.6571429 0z\" fill-rule=\"evenodd\" transform=\"translate(-6 -9)\"\/><\/svg>\n            <\/span>\n            <span class=\"a2a_label visually-hidden\">Email<\/span>\n          <\/a>\n                  <\/span>\n  <\/div>\n\n  <\/div><\/div>\n \n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>As a <a href=\"https:\/\/dornsife.usc.edu\/profile\/vahe-peroomian\/\">space scientist<\/a>, every time I go outside with my family, I tell my children to look up at the sky. The front door of our home looks southeast, and on winter nights the <a href=\"https:\/\/noirlab.edu\/public\/education\/constellations\/orion\/\" target=\"_blank\" rel=\"noopener\">constellation Orion<\/a> hangs majestically just above the horizon as soon as it grows dark enough to see stars.<\/p>\n<p>One summer night, my son came running in and exclaimed, \u201cDad, Orion\u2019s not there!\u201d It was time for his first real astronomy lesson.<\/p>\n<p>We went outside and I asked him to find the <a href=\"https:\/\/earthsky.org\/favorite-star-patterns\/big-and-little-dippers-highlight-northern-sky\/\" target=\"_blank\" rel=\"noopener\">Big Dipper<\/a>, the easily identifiable pattern of stars that make up a portion of <a href=\"https:\/\/www.space.com\/ursa-major-constellation-great-bear\" target=\"_blank\" rel=\"noopener\">the constellation Ursa Major<\/a>. I reminded him that we could always see the Big Dipper no matter what time of the year it was.<\/p>\n<p>So, why is it that Orion is not always visible in the night sky, and certainly not in the same location month after month, while the Big Dipper always is? The answer is intimately tied to a few concepts: how astronomers measure the length of a day, the motion of the Earth around the Sun during a year, and the cadence with which stars rise and set night after night.<\/p>\n<h2>Sidereal time<\/h2>\n<p>If you look eastward at the same hour for two nights in a row, you\u2019ll find that the stars seem to be in the same place. But they\u2019re not, and this movement becomes apparent if you continue observing at the same hour for a week or more. A combination of the Earth\u2019s daily rotation on its axis and its yearly orbit around the Sun cause them to appear to move across the sky.<\/p>\n<p>Earth spins on its axis, which runs from the South Pole through the center of the Earth to the North Pole, once a day. Astronomers measure a day in two different ways: They measure a <a href=\"https:\/\/www.britannica.com\/science\/day#ref256139\" target=\"_blank\" rel=\"noopener\">solar day<\/a>, 24 hours long, with the position of the Sun from high noon to high noon. They measure a <a href=\"https:\/\/www.britannica.com\/science\/day#ref256139\" target=\"_blank\" rel=\"noopener\">sidereal day<\/a> with respect to distant stars that are fixed in the sky. A sidereal day is 23 hours and 56 minutes long.<\/p>\n<figure class=\"align-center zoomable\"><a href=\"https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip\"><img decoding=\"async\" src=\"https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" sizes=\"(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\" srcset=\"https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=404&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=404&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=404&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=508&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=508&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/721028\/original\/file-20260227-57-yns5jw.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=508&amp;fit=crop&amp;dpr=3 2262w\" alt=\"A diagram showing the Earth and the Moon, with a sidereal day demarcated as an angle at 90 degrees from the North pole and a solar day demarcated as a 91 degree angle, adding 4 minutes to the rotation time.\" \/><\/a><figcaption><span class=\"caption\">Rather than measuring a day as how long it takes for the Earth to rotate with respect to the Sun, a sidereal day measures how long it takes for Earth to rotate with respect to faraway stars. A sidereal day doesn\u2019t account for the small amount Earth moves on its orbit around the Sun, which is why it is slightly shorter than a solar day.<\/span><span class=\"attribution\"> <a class=\"source\" href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Sidereal_Day_versus_Solar_Day.webm\" target=\"_blank\" rel=\"noopener\">James O&#8217;Donoghue\/Interplanetary<\/a>, <a class=\"license\" href=\"http:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener\">CC BY<\/a><\/span><\/figcaption><\/figure>\n<p>The constellation Orion \u2014 and every star in the night sky \u2014 will appear in exactly the same place <a href=\"https:\/\/www.astronomy.com\/science\/i-am-perplexed-by-sidereal-time-would-you-go-over-this-concept\/\" target=\"_blank\" rel=\"noopener\">every 23 hours and 56 minutes<\/a>. Because of this slight offset, stars will appear to rise four minutes earlier every 24 hours on successive nights. Over the course of a month, a star that was close to the eastern horizon at 10 p.m. will now be much higher in the sky, having risen two hours earlier.<\/p>\n<p>So while the constellation Orion appears close to the horizon at sunset in late December, it is nearly overhead in February and March.<\/p>\n<figure id=\"attachment_26908\" aria-describedby=\"caption-attachment-26908\" style=\"width: 367px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-26908\" src=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-367x550.jpg\" alt=\"Bright stars visible over a rushing river\" width=\"367\" height=\"550\" data-wp-editing=\"1\" srcset=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-367x550.jpg 367w, https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-683x1024.jpg 683w, https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-768x1152.jpg 768w, https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-1024x1536.jpg 1024w, https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-1365x2048.jpg 1365w, https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2026\/03\/stars-over-river-vahe-peroomian-scaled.jpg 1707w\" sizes=\"(max-width: 367px) 100vw, 367px\" \/><figcaption id=\"caption-attachment-26908\" class=\"wp-caption-text\">The constellation Orion is visible in the sky. You can find it by seeing three bright, evenly spaced stars that represent Orion\u2019s belt. (Photo: <a href=\"https:\/\/www.vahep.com\/ColorLandscapes\/Seascapes\/i-rbBGvwC\" target=\"_blank\" rel=\"noopener\">Vah\u00e9 Peroomian<\/a>.)<\/figcaption><\/figure>\n<p>You can use <a href=\"https:\/\/stellarium.org\/\" target=\"_blank\" rel=\"noopener\">an interactive star chart<\/a> to see this phenomenon. Do you want to find Orion in August in North America? Just wake up at 4:30 a.m. and look eastward.<\/p>\n<p>Unlike Orion, the Big Dipper is always visible at night in most of the Northern Hemisphere. This is because of how Earth\u2019s daily rotation is projected onto the stars.<\/p>\n<h2>Circumpolar stars<\/h2>\n<p>Astronomers use a common set of reference points to project Earth\u2019s north and south poles, and the equator, onto the <a href=\"https:\/\/www.britannica.com\/science\/celestial-sphere\" target=\"_blank\" rel=\"noopener\">celestial sphere<\/a>, an imaginary sphere encompassing the sky.<\/p>\n<p>The idea of the celestial sphere <a href=\"https:\/\/open.maricopa.edu\/mccasth5p\/chapter\/celestial-sphere-introduction\/\" target=\"_blank\" rel=\"noopener\">evolved in ancient times<\/a> from the notion that the <a href=\"https:\/\/www.space.com\/geocentric-model\" target=\"_blank\" rel=\"noopener\">Earth was the unmoving center<\/a> of the universe. The projection of Earth\u2019s equator delineates the celestial equator, and the poles project onto the north and south celestial poles.<\/p>\n<p>The motion of stars near the celestial poles differs from how Orion and other constellations behave. Presently, the north celestial pole is very close to <a href=\"https:\/\/science.nasa.gov\/solar-system\/what-is-the-north-star-and-how-do-you-find-it\/\" target=\"_blank\" rel=\"noopener\">the star Polaris<\/a>, also known as the North Star. Stars close to Polaris never rise or set. They appear to circle counterclockwise around that star as the Earth spins on its rotation axis once a day.<\/p>\n<p>The number of these <a href=\"https:\/\/earthsky.org\/astronomy-essentials\/what-are-circumpolar-stars\/\" target=\"_blank\" rel=\"noopener\">circumpolar stars<\/a> increases as you move toward the North Pole. There are no circumpolar stars at the equator. Every star and constellation rises in the east and sets in the west because Earth rotates west to east on its axis.<\/p>\n<p>If you are standing at the North Pole, every northern constellation is circumpolar, circling the North Star and never rising or setting. The pattern is similar in the Southern Hemisphere, with the southern constellations circling clockwise around the south celestial pole.<\/p>\n<h2>Earth\u2019s precession<\/h2>\n<p>Millennia ago, people charted the path of the Sun through the <a href=\"https:\/\/astro101.wwu.edu\/a101_zodiac.html\" target=\"_blank\" rel=\"noopener\">constellations of the zodiac<\/a>, which birthed the practice of astrology.<\/p>\n<p>What does it mean for the Sun to be in Sagittarius, for example? It means that to see the constellation Sagittarius, you have to be looking toward the Sun. That would make it daytime, when the stars are not visible. Wait for nightfall, and you can see Gemini high in the sky. Six months later, the Sun is in Gemini, and Sagittarius is visible in the night sky. This pattern repeats year after year, as the Earth orbits the Sun. Your zodiac signs depend on which constellation the Sun was in when you were born.<\/p>\n<figure>\n<div class=\"video-embed\"><iframe loading=\"lazy\" title=\"xt Generation Science Standards The Ecliptic: Crash Course Kids #37.2 \" src=\"https:\/\/www.youtube.com\/embed\/vYxps00Ap9s?si=6Eab7uzk5iVFDMQK\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div><figcaption><span class=\"caption\">The constellations of the zodiac form a beltlike circle around the Earth and Sun in space.<\/span><\/figcaption><\/figure>\n<p>There is one other change in the night sky that occurs on time scales much longer than a human lifetime. Because of the gravitational influence of the Sun, and to a lesser extent Jupiter, on Earth\u2019s daily rotation, <a href=\"https:\/\/www.britannica.com\/science\/precession-of-the-equinoxes\" target=\"_blank\" rel=\"noopener\">Earth\u2019s spin axis precesses<\/a>, or moves in a circle, like a toy top spun on a table.<\/p>\n<p><a href=\"https:\/\/theconversation.com\/earth-isnt-the-only-planet-with-seasons-but-they-can-look-wildly-different-on-other-worlds-216874\" target=\"_blank\" rel=\"noopener\">Because of this motion<\/a>, which also subtly changes Earth\u2019s orbit in space, Polaris will no longer be the North Star a thousand years from now. Wait 12,000 years, and the bright star Vega will be closest to the north celestial pole, more than 50 degrees across the night sky from its present location near Polaris.<\/p>\n<p>Another consequence of this motion, sometimes referred to as the <a href=\"https:\/\/www.britannica.com\/science\/precession-of-the-equinoxes\" target=\"_blank\" rel=\"noopener\">precession of the equinoxes<\/a>, is that today the constellations of the zodiac <a href=\"https:\/\/theconversation.com\/why-your-zodiac-sign-is-probably-wrong-128818\" target=\"_blank\" rel=\"noopener\">no longer align<\/a> with the traditional dates associated with them.<\/p>\n<p>For example, when horoscopes and astrological signs were originally devised, the Sun was in the constellation Sagittarius from Nov. 22 to Dec. 21. However, because of precession over thousands of years, the Sun now crosses this constellation from Dec. 18 to Jan. 19. It spends the early part of December in Ophiuchus, which is not part of the traditional 12 constellations of the zodiac.<\/p>\n<p>These changes in the night sky take weeks, months or even hundreds of years to be visible. If you\u2019re not that patient, you can fly to the opposite hemisphere to see Orion upside down and the night sky turning in the opposite direction above.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img loading=\"lazy\" decoding=\"async\" style=\"border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;\" src=\"https:\/\/counter.theconversation.com\/content\/274096\/count.gif?distributor=republish-lightbox-basic\" alt=\"The Conversation\" width=\"1\" height=\"1\" \/><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines --><\/p>\n<p><a href=\"https:\/\/theconversation.com\/profiles\/vahe-peroomian-749331\" target=\"_blank\" rel=\"noopener\">Vahe Peroomian<\/a>, Professor (Teaching) of <a href=\"https:\/\/dornsife.usc.edu\/physics\/\">Physics and Astronomy<\/a>, <em><a href=\"https:\/\/theconversation.com\/institutions\/usc-dornsife-college-of-letters-arts-and-sciences-2669\" target=\"_blank\" rel=\"noopener\">USC Dornsife College of Letters, Arts and Sciences<\/a><\/em><\/p>\n<p>This article is republished from <a href=\"https:\/\/theconversation.com\" target=\"_blank\" rel=\"noopener\">The Conversation<\/a> under a Creative Commons license. Read the <a href=\"https:\/\/theconversation.com\/why-are-some-stars-always-visible-while-others-come-and-go-with-the-seasons-274096\" target=\"_blank\" rel=\"noopener\">original article<\/a>.<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n  \n        \n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-related-stories \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-related-stories\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n              \n<div class=\"f--field f--section-title\">\n\n    \n  <h2>\n          Related Articles\n      <\/h2>\n\n\n<\/div>\n    \n                  <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/is-ai-really-writing-ancient-authors-would-have-said-no\/\" \n                        class=\"\" \n      >Is AI really \u2018writing\u2019? From a priestess to philosophers, ancient authors would have said\u00a0\u2018no\u2019<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n              <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/youtu.be\/giqbYRVn5v4\" \n         target=\"_blank\"                 class=\"\" \n      >\u2018Trojan Talks\u2019: USC President Beong-Soo Kim talks with Assal Habibi<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n              <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/today.usc.edu\/top-k-12-students-to-compete-in-science-olympiad-at-usc\/\" \n         target=\"_blank\"                 class=\"\" \n      >Top K-12 students to compete in Science Olympiad at USC<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n            <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>From Earth spinning on its axis and orbiting the Sun to it precessing like a top, lots of factors affect which stars you can see in the sky.<\/p>\n","protected":false},"author":14,"featured_media":26813,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[87,216,83],"class_list":["post-26808","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-and-technology","tag-expert-viewpoint","tag-physics-and-astronomy","tag-the-conversation"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why are some stars always visible while others come and go with the\u00a0seasons?<\/title>\n<meta name=\"description\" content=\"From Earth spinning on its axis and orbiting the Sun to it precessing like a top, lots of factors affect which stars you can see in the sky.\" \/>\n<meta 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