Εμφάνιση ενός μόνο μηνύματος
  #4  
Παλιά 17-10-17, 09:18
Το avatar του χρήστη pazo
pazo Ο χρήστης pazo δεν είναι συνδεδεμένος
Administrator
 

Τελευταία φορά Online: Σήμερα 10:25
Φύλο: Άντρας
Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

17 Oct 2017



Haumea of the Outer Solar System

Illustration Credit: Instituto de Astrofísica de Andalucía

Explanation: One of the strangest objects in the outer Solar System has recently been found to have a ring. The object, named Haumea, is the fifth designated dwarf planet after Pluto, Ceres, Eris, and Makemake. Haumea's oblong shape makes it quite unusual. Along one direction, Haumea is significantly longer than Pluto, while in another direction Haumea has an extent very similar to Pluto, while in the third direction is much smaller. Haumea's orbit sometimes brings it closer to the Sun than Pluto, but usually Haumea is further away. Illustrated above, an artist visualizes Haumea as a cratered ellipsoid surrounded by a uniform ring. Originally discovered in 2003 and given the temporary designation of 2003 EL61, Haumea was renamed in 2008 by the IAU for a Hawaiian goddess. Besides the ring discovered this year, Haumea has two small moons discovered in 2005, named Hi'iaka and Namaka for daughters of the goddess.

Tomorrow's picture: blue star dust

ΠΗΓΗ: http://apod.nasa.gov/apod/astropix.html
__________________
VmF Skisters of Mercy ©
An eye for an eye, will make us all blind... Mahatma Ghandi
Απάντηση με παράθεση