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.

Të drejtat:

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

Rreth kësaj Videoje

Id:eso1142a
Data e Publikimit:Oct 26, 2011, 19:00 CEST
Publikime të ngjashme:eso1142
Njoftime të ngjashme:ann11076
Kohëzgjatja:05 m 08 s
Frame rate:30 fps

Rreth objektit

Emri:(136199) Eris
Tipi:Solar System : Interplanetary Body : Dwarf planet
Kategori:ESOcast

HD


Large

QT e madhe
76,5 MB

Medium

Publikim Video
57,3 MB
Flash Mesatar
64,0 MB

Small

Flash i vogël
26,9 MB
QT e vogël
18,6 MB

For Broadcasters


Skenari

Skenari
168,5 KB

Nëntitujt

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
Vietnamese
7,5 KB