Ανακαλύψτε το Σύμπαν! Καθημερινή παρουσίαση μιας εικόνας ή φωτογραφίας σχετική με το συναρπαστικό μας Σύμπαν, μαζί με μία σύντομη επεξήγηση, γραμμένη από επαγγελματία αστρονόμο.
2015 December 22 -- : -- New TestPage
Explanation: Where do Geminid meteors come from? In terms of location on the sky, as the featured image composite beautifully demonstrates, the sand-sized bits of rock that create the streaks of the Geminid Meteor Shower appear to flow out from the constellation of Gemini .In terms of parent body, Solar System trajectories point to the asteroid 3200 Phaethon -- but this results in a bit of a mystery since that unusual object appears mostly dormant . Perhaps, 3200 Phaethon undergoes greater dust-liberating events than we know, but even if so, exactly what happens and why remains a riddle . Peaking last week, over 50 meteors including a bright fireball were captured streaking above Xinglong Observatory in China . Since the Geminids of December are one of the most predictable and active meteor showers , investigations into details of its origin are likely to continue.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell (UMCP)
NASA Official: Phillip Newman
Specific rights apply.
NASA Web
Privacy Policy and Important Notices
A service of:
ASD at
NASA /
GSFC
& Michigan Tech. U.
NASA APOD
Συντονιστής και μεταφραστής: Ανδρέας Παπαδόπουλος
Η ιστοσελίδα δημιουργήθηκε από: Ανδρέα Howes
Η ιστοσελίδα ανήκει στο: AHPC Group