pluto's out

i always find myself amazed on the beauty outside earth. sobra sobra. to be an astronaut or astronomer was my greatest dream ever. pero mas gusto ko astronaut para makapunta talaga sa outer space. hehe. narealize ko yun nung grade 3 ako. dun kasi kami nagkaron ng first astronomy class sa science. at napa HUWAWS tlg ako. ayun. sabi ko nga kung may astronomy na course dito sa pilipinas, why not?!? gustung gusto ko tlg to the nth power. buhuhu. kaso wala eh. hehe. ayun.

in line with that, nasa news kasi na from now on, only 8 planets of the solar system will be recognized. di na kasama pluto. buhuhu. pluto is now one of the dwarf planets. kasi, pluto failed to fulfill one of the three definitions of being called a planet which is: clear out their neighbourhood of orbital debris. wala naman kasing epekto ang gravity ng pluto sa ibang planets. in fact, mas maliit pa sia compared sa mga major moons ng ibang mga planets. kaya yun. naimpeach si pluto. sad sad hehe.

share na lang ako ng info about pluto dahil babayu na tayo sa kanya :p

- orbit: 5,913,520,000 km (39.5 AU) from the Sun (average)
- diameter: 2274 km
- mass: 1.27e22 kg
- was discovered in 1930 by an accident. napredict sia dahil maling calculations.
- has not yet been visited by any spacecraft. pero may nalaunch na spacecraft nung jan 2006. ung New Horizons tapos dadating sia sa pluto ng 2015. OMG. ang tagal.
- it has a satellite named Charon. tapos recently, may nadiscover na 2 additional satellites, sina Nix and Hydra.
- Pluto is the second most contrasty body in the Solar System
- Pluto's orbit is highly eccentric. At times it is closer to the Sun than Neptune. Pluto rotates in the opposite direction from most of the other planets.
- the plane of Pluto's equator is at almost right angles to the plane of its orbit.
- The surface temperature on Pluto varies between about -235 and -210 C (38 to 63 K).
- Pluto's composition is unknown, but its density (about 2 gm/cm3) indicates that it is probably a mixture of 70% rock and 30% water ice much like Triton. The bright areas of the surface seem to be covered with ices of nitrogen with smaller amounts of (solid) methane, ethane and carbon monoxide. The composition of the darker areas of Pluto's surface is unknown but may be due to primordial organic material or photochemical reactions driven by cosmic rays.

source: *naks may source pa :P http://www.nineplanets.org/pluto.html