VLT fångar rörelsen hos 3I/ATLAS, ett nytt interstellärt objekt
ESO:s Very Large Telescope (VLT) har tagit nya bilder av 3I/ATLAS, ett interstellärt objekt som upptäcktes förra veckan. 3I/ATLAS är en komet och endast den tredje kända besökaren från rymden utanför solsystemet som någonsin hittats, efter 1I/ʻOumuamua och 2I/Borisov. Dess mycket excentriska hyperboliska bana skiljer sig från objekt i solsystemet och avslöjade dess interstellära ursprung.
I denna tidsserie tagen med VLT ses 3I/ATLAS röra sig åt höger under en period av cirka 13 minuter. Dessa data erhölls med FORS2-instrumentet på VLT natten till den 3 juli 2025, bara två dagar efter att kometen först upptäcktes. Bilderna offentliggjordes omedelbart via ESO:s arkiv.
I slutet av videon ser vi alla bildrutor staplade till en enda bild: den djupaste och bästa bild vi har hittills av detta främmande objekt. Men detta rekord kommer inte att hålla länge eftersom kometen närmar sig jorden och blir ljusstarkare. 3I/ATLAS, som för närvarande befinner sig mer än 600 miljoner kilometer från solen, färdas mot solsystemets inre delar och förväntas närma sig jorden i slutet av oktober 2025. 3I/ATLAS kommer då att gömma sig bakom men kommar åter att bli observerbar i december 2025, när den är på väg tillbaka mot den interstellära rymden.
Teleskop runt om i världen, inklusive VLT, kommer att fortsätta observera denna sällsynta himmelska besökare så länge de kan för att ta reda på mer om dess form, sammansättning och ursprung. Vilka överraskningar kommer dessa observationer att avslöja? Håll utkik!
Länkar
Källa:
ESO/O. Hainaut
Om videon
| ID: | potw2527a |
| Språk: | sv |
| Publiceringsdatum: | 8 juli 2025 09:00 |
| Speltid: | 15 s |
| Frame rate: | 25 fps |
Om objektet
| Namn: | 3I/ATLAS |
| Typ: | Solar System : Interplanetary Body : Comet |
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