Μέγιστο Διδυμίδων 2013

[Bi2L]

Μέγιστο Διδυμίδων

[astrovox]

Μέγιστο διδυμίδων απόψε, αξιόλογη και αξιόπιστη βροχή, όμως πνιγμένη φέτος στη μεγάλη Σελήνη...

 

http://www.imo.net/geminids2013

 

One of the finest, and probably the most reliable, of the major annual showers presently observable. Well north of the equator, the radiant rises about sunset, reaching a usable elevation from the local evening hours onwards. In the southern hemisphere, the radiant appears only around local midnight or so. It culminates near 02h . Even from more southerly sites, this is a splendid stream of often bright, medium-speed meteors, a rewarding event for all observers, whatever method they employ. The peak has shown slight signs of variability in its rates and timing in recent years, with the more reliably-reported maxima during the past two decades (HMO, p. 171) all having occurred within λ⊙ = 261 . °5 to 262 . °4, 2013 December 13, 13h to December 14, 10h UT. Near-peak rates usually persist for almost a day, so much of the world has the chance to enjoy something of the Geminids’ best. Some mass-sorting within the stream means fainter telescopic meteors should be most abundant almost a day ahead of the visual maximum, with telescopic results indicating such meteors radiate from an elongated region, perhaps with three sub-centres. Further results on this topic would be useful. The shower’s peak this year has a waxing gibbous Moon to contend with, and while casual sky-watchers should still be able to see enough of the brighter Geminids to entertain them in the moonlight, dedicated meteor observers must make the best of the brief dark-sky spell between moonset and dawn on the maximum night.

[vtsamis]

Άρχισα να γράφω video λίγο μετά τα μεσάνυχτα, o ουρανός ήταν ξάστερος.

Οι θερμοκρασίες αυτές τις μέρες εδώ κυμαίνονται γύρω στο -8, -10 ... οι μέγιστες! Οι ελάχιστες είναι γύρω στο -18, -22!

 

https://www.astrovox.gr/gallery/image/16811-geminid-meteor-shower-2013/ https://www.astrovox.gr/gallery/image/16812-geminid-meteor-in-orion/

 

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