ESOcast 38: Faraway Eris is Pluto’s twin

This ESOcast describes how astronomers have accurately measured the diameter of the faraway dwarf planet Eris for the first time by catching it as it passed in front of a faint star. This event was seen at the end of 2010 by telescopes in Chile, including the TRAPPIST telescope at ESO’s La Silla Observatory. The observations show that Eris is an almost perfect twin of Pluto in size. Eris seems to have a very reflective surface, suggesting that it is covered in ice, probably a frozen atmosphere.

More episodes of the ESOcast are also available.

Find out how to view and contribute subtitles for the ESOcast in multiple languages, or translate this video on dotSUB.

Oikeudet:

ESO

Visual design and editing: Martin Kornmesser and Luis Calçada.
Editing: Herbert Zodet.
Web and technical support: Lars Holm Nielsen and Raquel Yumi Shida.
Written by: Mathieu Isidro and Richard Hook.
Narration: Dr. J.
Music: John Dyson (from the album Moonwind) and movetwo.
Footage and photos: ESO, E. Jehin, Nick Risinger (skysurvey.org) and José Francisco Salgado (josefrancisco.org).
Directed by: Richard Hook and Herbert Zodet.
Executive producer: Lars Lindberg Christensen.

Subscribe:

ESOcast HD (High Definition - 1280 x 720)
ESOcast SD (Standard Definition - 640 x 480)

ESOcast HD (High Definition) in iTunes
ESOcast SD (Standard Definition) in iTunes

Videosta

Tunnistus:eso1142a
Julkaisupäivä:26. lokakuuta 2011 19:00
Vastaavat julkaisut:eso1142
Vastaavat tiedotteet:ann11076
Kesto:05 m 08 s
Frame rate:30 fps

Kohteesta

Nimi:(136199) Eris
Tyyppi:Solar System : Interplanetary Body : Dwarf planet
Kategoria:ESOcast

HD


Large

Suuri QT
76,5 MB

Medium

Video podcast
57,3 MB

Small

Pieni Flash
26,9 MB
Pieni QT
18,6 MB

For Broadcasters


Käsikirjoitus

Käsikirjoitus
168,5 KB

Tekstitys

English
6,0 KB
French
6,3 KB
German
5,9 KB
Greek
9,3 KB
Italian
6,3 KB
Polish
6,2 KB
Portuguese
6,2 KB
Russian
8,7 KB
Slovenian
5,9 KB

Katso myös