{"id":20629,"date":"2022-06-04T15:09:59","date_gmt":"2022-06-04T15:09:59","guid":{"rendered":"https:\/\/www.africa-press.net\/mozambique\/all-news\/astronomers-find-super-earth-four-times-bigger-than-ours-in-close-stars-habitable-zone"},"modified":"2022-06-04T15:23:26","modified_gmt":"2022-06-04T15:23:26","slug":"astronomers-find-super-earth-four-times-bigger-than-ours-in-close-stars-habitable-zone","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/mozambique\/all-news\/astronomers-find-super-earth-four-times-bigger-than-ours-in-close-stars-habitable-zone","title":{"rendered":"Astronomers Find Super-Earth Four Times Bigger Than Ours in Close Star\u2019s \u2018Habitable Zone\u2019"},"content":{"rendered":"

Africa-Press – Mozambique. <\/strong><\/span>Super-Earths\u201d are planets with a mass greater than ours but less than that of Neptune. Although the term merely refers to the planet\u2019s mass, astronomers use it to denote planets that are larger than Earth but smaller than the so-called \u201cmini-Neptunes\u201d \u2013 planets that have a thick hydrogen-helium atmosphere and a considerable amount of ice. A four-times-larger-than-our-planet \u201csuper-Earth\u201d has been discovered orbiting a star just 36.5 light-years away.<\/p>\n

However, according to new research by the international team of astronomers using the National Astronomical Observatory of Japan\u2019s Subaru Telescope in Hawaii, despite being in the so-called \u201cGoldilocks\u201d zone, where the temperature is just enough for liquid water to exist, experts believe it is unlikely to be suitable for life as we know it.<\/p>\n

Called Ross 508b, this exoplanet was identified in the habitable zone of a weak red dwarf that it rounds every 10.75 days. Although this is way faster than the Earth\u2019s 365-day orbit, Ross 508b orbits a much smaller and fainter star than our Sun.<\/p>\n

Given what we know about planetary mass constraints, the newly discovered world is more likely to be terrestrial, or rocky, like Earth, than gaseous, the research said. It is said to be the campaign\u2019s first exoplanet, as described in a publication led by Subaru Telescope scientist Hiroki Harakawa.<\/p>\n

As usual, Ross 508b is named after the neighboring M-dwarf star Ross 508 around which it revolves. Ross 508, which has an orbiting world and is 18% the mass of our Sun, is one of the smallest, faintest stars with an orbiting world discovered using radial velocity.<\/b><\/p>\n

The transit method, which is used by NASA\u2019s exoplanet-hunting observatory TESS and Kepler before it, is the most common approach for detecting exoplanets. It entails looking at the stars with an instrument and looking for regular dips in their light generated by an object circling between Earth and the star. Astronomers then use the transit\u2019s depth to calculate the object\u2019s mass, with the larger the light curve indicating a larger planet. A total of 3,858 exoplanets have previously been confirmed with this procedure.<\/p>\n

Another option that can be used to search for exoplanets is the radial velocity approach, often known as the wobble or Doppler method. It can detect \u201cwobbles\u201d in a star generated by an orbiting planet\u2019s gravitational attraction. The star\u2019s light is likewise affected by the wobbles. Its light appears to shift towards the blue half of the spectrum as it approaches Earth, and away from Earth, it appears to shift towards the red.<\/p>\n

Future radial velocity investigations in infrared wavelengths could potentially unearth a large number of exoplanets orbiting faint stars, according to the paper.<\/p>\n

The nature of what we think those exoplanets should look like has hindered the search for habitable exoplanets. Earth is the only model we have, and it is a small planet orbiting a star at a distance where temperatures are suitable for liquid water on the surface. This is what is referred to as the \u201chabitable zone.\u201d<\/p>\n

For More News And Analysis About Mozambique<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Mozambique. Super-Earths\u201d are planets with a mass greater than ours but less than that of Neptune. Although the term merely refers to the planet\u2019s mass, astronomers use it to denote planets that are larger than Earth but smaller than the so-called \u201cmini-Neptunes\u201d \u2013 planets that have a thick hydrogen-helium atmosphere and a considerable […]<\/p>\n","protected":false},"author":84,"featured_media":20628,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,8,9,16],"tags":[233,281,283],"class_list":["post-20629","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-homepage-english","category-miscellaneous","category-twitter","tag-africa-press","tag-africa-press-mozambique","tag-mozambique"],"yoast_head":"\nAstronomers Find Super-Earth Four Times Bigger Than Ours in Close Star\u2019s \u2018Habitable Zone\u2019 - Mozambique<\/title>\n<meta name=\"description\" content=\"Super-Earths\u201d are planets with a mass greater than ours but less than that of Neptune. 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