{"id":28207,"date":"2022-02-02T18:00:24","date_gmt":"2022-02-02T16:00:24","guid":{"rendered":"https:\/\/portal.fonisalaminas.gr\/?p=28207"},"modified":"2022-02-02T18:19:42","modified_gmt":"2022-02-02T16:19:42","slug":"i-gi-tha-exei-gia-4000-xronia-ws-synodos-enan-deutero-megalitero-troiko-asteroeidi","status":"publish","type":"post","link":"https:\/\/portal.fonisalaminas.gr\/index.php\/2022\/02\/02\/i-gi-tha-exei-gia-4000-xronia-ws-synodos-enan-deutero-megalitero-troiko-asteroeidi\/","title":{"rendered":"\u0397 \u0393\u03b7 \u03b8\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03b3\u03b9\u03b1 4.000 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03c9\u03c2 \u03c3\u03c5\u03bd\u03bf\u03b4\u03cc \u03ad\u03bd\u03b1\u03bd \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03a4\u03c1\u03c9\u03b9\u03ba\u03cc \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03ae"},"content":{"rendered":"\n

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\"\"
Using the 4.1-meter\u00a0SOAR\u00a0(Southern Astrophysical Research) Telescope on Cerro Pach\u00f3n in Chile, astronomers have confirmed that an asteroid discovered in 2020 by the Pan-STARRS1 survey, called 2020 XL5, is an Earth Trojan (an Earth companion following the same path around the Sun as Earth does) and revealed that it is much larger than the only other Earth Trojan known. In this illustration, the asteroid is shown in the foreground in the lower left. The two bright points above it on the far left are Earth (right) and the Moon (left). The Sun appears on the right.\u00a0<\/figcaption><\/figure>\n\n\n\n

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   \u039f \u03c0\u03c1\u03ce\u03c4\u03bf\u03c2 \u03ae\u03c4\u03b1\u03bd \u03bf \u00ab2010 TK\u00bb \u03bc\u03b5 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf 400 \u03bc\u03ad\u03c4\u03c1\u03b1 \u03ba\u03b1\u03b9 \u03bf \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u00ab2020 XL5\u00bb \u03bc\u03b5 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 1,2 \u03c7\u03b9\u03bb\u03b9\u03cc\u03bc\u03b5\u03c4\u03c1\u03b1, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03ad\u03c7\u03b5\u03b9 \u03c4\u03c1\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2. \u039a\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03cd\u03bf \u03ad\u03c7\u03bf\u03c5\u03bd \u03b2\u03c1\u03b5\u03b8\u03b5\u03af \u03c3\u03c4\u03bf \u03bb\u03b5\u03b3\u03cc\u03bc\u03b5\u03bd\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u039b\u03b1\u03b3\u03ba\u03c1\u03ac\u03bd\u03b6 L4 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u0389\u03bb\u03b9\u03bf\u03c5 \u03ba\u03b1\u03b9 \u0393\u03b7\u03c2. \u039f\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2, \u03bc\u03b5 \u03b5\u03c0\u03b9\u03ba\u03b5\u03c6\u03b1\u03bb\u03ae\u03c2 \u03c4\u03bf\u03bd \u03a4\u03cc\u03bd\u03b9 \u03a3\u03b1\u03bd\u03c4\u03ac\u03bd\u03b1-\u03a1\u03bf\u03c2 \u03c4\u03c9\u03bd \u03c0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03af\u03c9\u03bd \u03c4\u03bf\u03c5 \u0391\u03bb\u03b9\u03ba\u03ac\u03bd\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u0392\u03b1\u03c1\u03ba\u03b5\u03bb\u03ce\u03bd\u03b7\u03c2, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03bf\u03b9 \u03ad\u03ba\u03b1\u03bd\u03b1\u03bd \u03c4\u03b7 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae \u03b4\u03b7\u03bc\u03bf\u03c3\u03af\u03b5\u03c5\u03c3\u03b7 \u03c3\u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03bf\u03b4\u03b9\u03ba\u03cc \u00abNature Communications\u00bb, \u03b5\u03ba\u03c4\u03b9\u03bc\u03bf\u03cd\u03bd \u03cc\u03c4\u03b9 \u03c3\u03c4\u03bf \u03bc\u03ad\u03bb\u03bb\u03bf\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03c1\u03b5\u03b8\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03bf\u03b9 \u03a4\u03c1\u03c9\u03b9\u03ba\u03bf\u03af \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03bf\u03b4\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b7 \u0393\u03b7.<\/p>\n\n\n\n

   \u0397 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03b1\u03bd\u03b1\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03c4\u03bf\u03c5 \u00ab2020 XL5\u00bb, \u03bf \u03bf\u03c0\u03bf\u03af\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03ba\u03bf\u03c5\u03c1\u03cc\u03c7\u03c1\u03c9\u03bc\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bb\u03bf\u03cd\u03c3\u03b9\u03bf\u03c2 \u03c3\u03b5 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ac\u03bd\u03b8\u03c1\u03b1\u03ba\u03b1, \u03ad\u03b3\u03b9\u03bd\u03b5 \u03bc\u03b5 \u03c4\u03bf \u03c4\u03b7\u03bb\u03b5\u03c3\u03ba\u03cc\u03c0\u03b9\u03bf Pan-STARRS 1 \u03c4\u03b7\u03c2 \u03a7\u03b1\u03b2\u03ac\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b9\u03b2\u03b5\u03b2\u03b1\u03af\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b1 \u03c4\u03b7\u03bb\u03b5\u03c3\u03ba\u03cc\u03c0\u03b9\u03b1 SOAR \u03c3\u03c4\u03b7 \u03a7\u03b9\u03bb\u03ae \u03ba\u03b1\u03b9 Lowell \u03c3\u03c4\u03b7\u03bd \u0391\u03c1\u03b9\u03b6\u03cc\u03bd\u03b1. \u039f\u03b9 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03bf\u03af \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03cc\u03bd\u03c9\u03bd \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2 \u03a4\u03c1\u03c9\u03b9\u03ba\u03cc\u03c2 \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03ae\u03c2 \u00ab2020 XL5″\u00bb\u03b8\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03c4\u03c1\u03bf\u03c6\u03b5\u03cd\u03b5\u03b9 \u03c4\u03b7 \u0393\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd 4.000 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03b1\u03ba\u03cc\u03bc\u03b7, \u03b1\u03bb\u03bb\u03ac \u03c3\u03c4\u03b1\u03b4\u03b9\u03b1\u03ba\u03ac \u03b8\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b1\u03c1\u03b1\u03c7\u03b8\u03b5\u03af \u03b2\u03b1\u03c1\u03c5\u03c4\u03b9\u03ba\u03ac \u03b7 \u03c4\u03c1\u03bf\u03c7\u03b9\u03ac \u03c4\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03c0\u03bf\u03b9\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae \u03b8\u03b1 \u00ab\u03b4\u03c1\u03b1\u03c0\u03b5\u03c4\u03b5\u03cd\u03c3\u03b5\u03b9\u00bb \u03c3\u03c4\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b5\u03b3\u03ba\u03b1\u03c4\u03b1\u03bb\u03b5\u03af\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03ad\u03b1 \u03c4\u03b7\u03c2 \u0393\u03b7\u03c2.<\/p>\n\n\n\n

   \u039f\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bd -\u03b5\u03bd \u03c4\u03c9 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd- \u03bd\u03b1 \u03bc\u03b5\u03bb\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03c2 \u03b3\u03ae\u03b9\u03bd\u03bf\u03c5\u03c2 \u03a4\u03c1\u03c9\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c1\u03c7\u03ad\u03b3\u03bf\u03bd\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c0\u03bf\u03c5 \u03b1\u03bd\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03c1\u03ce\u03b9\u03bc\u03b7 \u03b5\u03c0\u03bf\u03c7\u03ae \u03b3\u03ad\u03bd\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b9\u03b1\u03ba\u03bf\u03cd \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03cc\u03c2 \u03bc\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03ac\u03c1\u03b1 \u03c0\u03b9\u03b8\u03b1\u03bd\u03ce\u03c2 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b7\u03bc\u03ac\u03c4\u03b9\u03c3\u03b1\u03bd \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c4\u03b7 \u0393\u03b7. \u00ab\u0391\u03bd \u03bc\u03c0\u03bf\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03ba\u03b1\u03bb\u03cd\u03c8\u03bf\u03c5\u03bc\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03a4\u03c1\u03c9\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd \u03bc\u03b5\u03c1\u03b9\u03ba\u03bf\u03af \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03b9\u03bf “\u03b2\u03bf\u03bb\u03b9\u03ba\u03ad\u03c2” \u03c4\u03c1\u03bf\u03c7\u03b9\u03ad\u03c2, \u03c0\u03b9\u03b8\u03b1\u03bd\u03ce\u03c2 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c6\u03b8\u03b7\u03bd\u03cc\u03c4\u03b5\u03c1\u03bf \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03c0\u03b1\u03c1\u03ac \u03c3\u03c4\u03b7 \u03a3\u03b5\u03bb\u03ae\u03bd\u03b7. \u03a3\u03c5\u03bd\u03b5\u03c0\u03ce\u03c2 \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b1\u03bd \u03bd\u03b1 \u03b3\u03af\u03bd\u03bf\u03c5\u03bd \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b2\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03bc\u03af\u03b1 \u03c0\u03c1\u03bf\u03c9\u03b8\u03b7\u03bc\u03ad\u03bd\u03b7 \u03b5\u03be\u03b5\u03c1\u03b5\u03cd\u03bd\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b9\u03b1\u03ba\u03bf\u03cd \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ae \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b7\u03b3\u03ae \u03c0\u03c1\u03ce\u03c4\u03c9\u03bd \u03c5\u03bb\u03ce\u03bd\u00bb, \u03b4\u03ae\u03bb\u03c9\u03c3\u03b5 \u03bf \u03b1\u03c3\u03c4\u03c1\u03bf\u03bd\u03cc\u03bc\u03bf\u03c2 \u03a3\u03ad\u03b6\u03b1\u03c1 \u039c\u03c0\u03c1\u03b9\u03c3\u03ad\u03bd\u03bf \u03c4\u03bf\u03c5 \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03c3\u03ba\u03bf\u03c0\u03b5\u03af\u03bf\u03c5 Cerro Tololo Inter-American Observatory \u03c3\u03c4\u03b7 \u03a7\u03b9\u03bb\u03ae.<\/p>\n\n\n\n

   \u03a3\u03cd\u03bd\u03b4\u03b5\u03c3\u03bc\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ae \u03b4\u03b7\u03bc\u03bf\u03c3\u03af\u03b5\u03c5\u03c3\u03b7:<\/p>\n\n\n\n

https:\/\/www.nature.com\/articles\/s41467-022-27988-4<\/a><\/p>\n\n\n\n

\u00a0\u00a0\u00a0\u03a0\u0394\u03a1 -\u0391\u03a0\u0395 \u039c\u03a0\u0395<\/p>\n\n\n\n

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<\/p>\n","protected":false},"excerpt":{"rendered":"

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