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Αστρικό σμήνος Messier 9 - Εντυπωσιακή φωτογραφία από το Hubble - sed.gr
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ENGLEZOS
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Δημοσιεύσεις: 1848
Εγγραφή: 26 Φεβ 2002, 03:00
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19 Μαρ 2012, 23:45

[img0]http://img831.imageshack.us/img831/6818/messier9.jpg[/img0]

Το τηλεσκόπιο Ηubble διέκρινε περισσότερα από 250.000 άστρα στο σύμπλεγμα
Μια εντυπωσιακή και λεπτομερή εικόνα του συμπλέγματος αστέρων Messier 9 μας χάρισε το διαστημικό τηλεσκόπιο Hubble.

Το Messier 9 είναι ένα σμήνος σε σφαιρικό σχήμα στο κέντρο του Γαλαξία μας, το οποίο φυσικά δεν είναι δυνατό να δει κάποιος με γυμνό μάτι.

Το Hubble διέκρινε μέσα στο σμήνος περισσότερα από 250.000 άστρα, τα οποία βρίσκονται 25.000 έτη φωτός μακριά από τη Γη.

Σύμφωνα με τους ειδικούς, αυτού του είδους τα σμήνη ενδέχεται να φιλοξενούν κάποια από τα πιο ηλικιωμένα άστρα του Γαλαξία μας.

Το Messier 9 ανακαλύφθηκε από τον γάλλο αστρονόμο Charles Messier το 1764, ενώ ακόμη και με τα πιο τηλεσκόπια της εποχής δεν μπορούσε να αναλυθεί το φως του σμήνους σε ξεχωριστά αστέρια, με αποτέλεσμα ο Messier να το ταξινομήσει ως νέφος. Κατά το 18ο αιώνα οι αστρονόμοι μπόρεσαν να παρατηρήσουν ξεχωριστά αστέρια στο σμήνος.
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