{"id":82026,"date":"2006-06-12T17:38:00","date_gmt":"2006-06-12T15:38:00","guid":{"rendered":"http:\/\/www.re-actio.com\/wordpress\/?p=82026"},"modified":"2006-06-12T17:38:00","modified_gmt":"2006-06-12T15:38:00","slug":"es-gibt-doch-ausserirdische-2160052","status":"publish","type":"post","link":"https:\/\/www.re-actio.com\/wordpress\/es-gibt-doch-ausserirdische-2160052\/","title":{"rendered":"Es gibt doch \"Au\u00dferirdische\"!"},"content":{"rendered":"
<\/div>\n

Was ich schon immer ver\u00admu\u00adtet<\/a> hat\u00adte - und wof\u00fcr es auch schon immer Hin\u00adwei\u00adse, aber nie Bewei\u00adse gab - zuerst in \"Natu\u00adre\" ver\u00f6ffentlicht:<\/p>\n

HD<\/span> 69830<\/a>
\nDer son\u00adnen\u00ad\u00e4hn\u00adli\u00adche gelb\u00adoran\u00adge\u00adne Stern weist in 0,42 AE<\/span> einen Aste\u00adro\u00adiden\u00adg\u00fcr\u00adtel auf, der 25 mal mehr Mate\u00adri\u00adal ent\u00adh\u00e4lt als der Aste\u00adro\u00adiden\u00adg\u00fcr\u00adtel der Son\u00adne und dem Stern viel n\u00e4her liegt.<\/p>\n

\n

<\/p>

\"twoday.net\"<\/a>\n
\n

[Bild: \u00a9 ESO<\/span><\/a>]<\/p><\/center>\n

\n

Es gibt drei Pla\u00adne\u00adten in Nep\u00adtun\u00adgr\u00f6\u00ad\u00dfe um den Stern in 0,07, 0,18 und 0,63 AE<\/span> Ent\u00adfer\u00adnung. Die Umlauf\u00adzei\u00adten betra\u00adgen 8,67, 31,6 und 197 Tage. Der \u00e4u\u00dfe\u00adre der drei Pla\u00adne\u00adten k\u00f6nn\u00adte von der Tem\u00adpe\u00adra\u00adtur her fl\u00fcs\u00adsi\u00adges Was\u00adser besitzen.<\/p>\n

Stern\u00adbild: Hinterdeck
\nEnt\u00adfer\u00adnung: 41,04 Lichtjahre
\nSpek\u00adtral\u00adklas\u00adse: K0<\/span>
\nGr\u00f6\u00ad\u00dfen\u00adklas\u00adse: 5,96
\nLeucht\u00adkraft: 0,567 * Sonne
\nMas\u00adse: 0,85 * Sonne
\nDurch\u00admes\u00adser: 0,960 * Sonne
\nRadi\u00adal\u00adge\u00adschwin\u00addig\u00adkeit: 30,5 km\/sek
\n<\/font><\/p>\n

\n

System Sum\u00adma\u00adry
\nHD<\/span> 69830 is loca\u00adted about 41.0 light-years (ly) from Sol. This sou\u00adthern star lies in the nor\u00adthea\u00adstern part of (08:18:23.9-12:37:55.8, ICRS<\/span> 2000.0) of Con\u00adstel\u00adla\u00adti\u00adon Pup\u00adpis, the Stern. It can be found: east of Siri\u00adus; southwest of Pro\u00adcy\u00adon; nor\u00adtheast of Wezen (Del\u00adta Canis Majo\u00adris), Alu\u00addra (Eta Canis Majo\u00adris), and Adha\u00adra (Epsi\u00adlon Canis Majo\u00adris); and north of Naos (Zeta Pup\u00adpis). In April 2005, astro\u00adno\u00admers announ\u00adced the dis\u00adco\u00advery of an aste\u00adro\u00adid belt around this star with some 25 times the mass of the Main Aste\u00adro\u00adid Belt in the Solar System (press release from the Spit\u00adzer Space Telescope<\/a>). On May 17, 2006, astro\u00adno\u00admers using the HARPS<\/span> spec\u00adtro\u00adgraph on the Euro\u00adpean Sou\u00adthern Observatory's 3.6-meter telescope at La Sil\u00adla, Chi\u00adle, announ\u00adced the dis\u00adco\u00advery of three pla\u00adnets (ran\u00adging around Ura\u00adnus or Nep\u00adtu\u00adne in mass) around this Sol-type star (ESO<\/span> press release and Natu\u00adre abstract -- more below). (See an ani\u00adma\u00adti\u00adon of the pla\u00adne\u00adta\u00adry and poten\u00adti\u00adal\u00adly habi\u00adta\u00adble zone<\/a> orbits of this system, with a table of basic orbi\u00adtal and phy\u00adsi\u00adcal characteristics.)<\/p>\n

\n

Natu\u00adre 441, 305-309 (18 May 2006) | doi:10.1038\/nature04828; Recei\u00adved 10 March 2006; Accept\u00aded 18 April 2006
\n\"An extra\u00adso\u00adlar pla\u00adne\u00adta\u00adry system with three Nep\u00adtu\u00adne-mass planets.\"
\nText:
\nOver the past two years, the search for low-mass extra\u00adso\u00adlar pla\u00adnets has led to the detec\u00adtion of seven so-cal\u00adled 'hot Nep\u00adtu\u00adnes' or 'super-Earths' around Sun-like stars. The\u00adse pla\u00adnets have masses 5\u200a\u2013\u200a20 times lar\u00adger than the Earth and are main\u00adly found on clo\u00adse-in orbits with peri\u00adods of 2\u200a\u2013\u200a15 days. Here we report a system of three Nep\u00adtu\u00adne-mass pla\u00adnets with peri\u00adods of 8.67, 31.6 and 197 days, orbi\u00adting the near\u00adby star HD<\/span> 69830. This star was alre\u00ada\u00addy known to show an infrared excess pos\u00adsi\u00adbly cau\u00adsed by an aste\u00adro\u00adid belt within 1 au (the Sun\u200a\u2013\u200aEarth distance). Simu\u00adla\u00adti\u00adons show that the system is in a dyna\u00admical\u00adly sta\u00adble con\u00adfi\u00adgu\u00adra\u00adti\u00adon. Theo\u00adre\u00adti\u00adcal cal\u00adcu\u00adla\u00adti\u00adons favour a main\u00adly rocky com\u00adpo\u00adsi\u00adti\u00adon for both inner pla\u00adnets, while the outer pla\u00adnet pro\u00adba\u00adb\u00adly has a signi\u00adfi\u00adcant gas\u00adeous enve\u00adlo\u00adpe sur\u00adroun\u00adding its rocky\/icy core; the outer pla\u00adnet orbits within the habi\u00adta\u00adble zone of this star.
\n<\/p>\n

\n

Wenn es also sol\u00adche Syste\u00adme gibt wer\u00adden sie nicht nur in die\u00adsem Qua\u00addran\u00adten vorkommen:
\nErgo mu\u00df es sehr vie\u00adle davon geben - und unter \"sehr vie\u00adlen\" gibt es bestimmt auch wel\u00adche, die von Au\u00dfer\u00adir\u00addi\u00adschen belebt sind - und nun war\u00adte ich auf deren Besuch ....<\/p>\n

(Soll\u00adte ich ein\u00adge\u00adla\u00adden wer\u00adden mit\u00adzu\u00adkom\u00admen sag' ich vor\u00adsichts\u00adhal\u00adber jetzt schon 'mal:
\n\"Tsch\u00fcs!\")<\/p>\n","protected":false},"excerpt":{"rendered":"

Was ich schon immer ver\u00admu\u00adtet hat\u00adte - und wof\u00fcr es auch schon immer Hin\u00adwei\u00adse, aber nie Bewei\u00adse gab - zuerst in \"Natu\u00adre\" ver\u00ad\u00f6f\u00adfent\u00adlicht: HD<\/span> 69830 Der son\u00adnen\u00ad\u00e4hn\u00adli\u00adche gelb\u00adoran\u00adge\u00adne Stern weist in 0,42 AE<\/span> einen Aste\u00adro\u00adiden\u00adg\u00fcr\u00adtel auf, der 25 mal mehr Mate\u00adri\u00adal ent\u00adh\u00e4lt als der Aste\u00adro\u00adiden\u00adg\u00fcr\u00adtel der Son\u00adne und dem Stern viel n\u00e4her liegt. [Bild: \u00a9 [\u2026]<\/p>\n","protected":false},"author":561,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-82026","post","type-post","status-publish","format-standard","hentry","category-daten-fakten"],"_links":{"self":[{"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/posts\/82026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/users\/561"}],"replies":[{"embeddable":true,"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/comments?post=82026"}],"version-history":[{"count":0,"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/posts\/82026\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/media?parent=82026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/categories?post=82026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.re-actio.com\/wordpress\/wp-json\/wp\/v2\/tags?post=82026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}