Oldtidskonstellationer over ALMA
Babak Tafreshi, en af ESOs fotoambassadører, har fanget Atacama Large Millimeter/submillimeter Array's (ALMA) antenner i et tryllebindende billede, der kombinerer den sydlige himmels skønhed med de utrolige dimensioner af det største astronomiske projekt i verden.
Tusinder af stjerner åbenbarer sig for det blotte øje på den klare himmel over Chajnantor-højsletten. Dets tørre og gennemsigtige nattehimmel er en af grundene til, at ALMA er blevet bygget her. I det øvre, venstre hjørne af billedet er en overraskende klar tætpakket flok af unge stjerner, Pleiadehoben, som var kendt af de fleste oldtidscivilisationer. Konstellationen Orion (Jægeren) er tydeligt synlig over den nærmeste antenne - Orions bælte udgøres af de tre blå stjerner lige til venstre for det røde lys. Ifølge klassisk mytologi var Orion en jæger, der forfulgte Pleiaderne, Atlas' smukke døtre. Set gennem den tynde atmosfære over Atacamaørkenen er det næsten som om denne episke jagt virkeligt sker.
ALMA, en international astronomifacilitet, er et partnerskab mellem Europa, Nordamerika og Østasien i samarbejde med Chile. Konstruktionen og driften af ALMA ledes i Europa af ESO, i Nordamerika af National Radio Astronomy Observatory (NRAO) og i Østasien af National Astronomical Observatory of Japan (NAOJ). Joint ALMA Observatory (JAO) står for den samlede ledelse og overordnede styring af konstruktionen, ibrugtagningen og driften af ALMA.
Kilde:ESO/B. Tafreshi (twanight.org)
Om billedet
| Id: | potw1347a |
| Sprog: | da |
| Type: | Foto |
| Udgivelsesdato: | 25. november 2013 10:00 |
| Størrelse: | 5982 x 4003 px |
Om objektet
| Navn: | Atacama Large Millimeter/submillimeter Array |
| Type: | Unspecified : Technology : Observatory : Telescope |
Billedformater
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