La nave espacial Galileo de la NASA capturó esta imagen de una erupción volcánica en IO en 1997. IO es el mundo más volcánicamente activo del sistema solar, gracias a la flexión constante provocada por el empuje gravitacional y el tirón de Júpiter, así como las lunas Ganymede y Europa. Las fuerzas de marea extremas generan una tremenda cantidad de calor dentro de IO, manteniendo gran parte de su corteza subsuperficial en forma líquida en forma de vía de escape disponible a la superficie para aliviar la presión. Cientos de enormes volcanes cubren una superficie solo un poco más grande que la luna, con fuentes de lava en erupción que alcanzan docenas de millas de altura.
Credits
Image
nasa, nasa-jpl, dlr
| About The Object | |
|---|---|
| Object Name | Io |
| Object Description | Volcanic eruption on Io |
| About The Data | |
| Instrument | Galileo: Solid-State Imaging |
| Exposure Dates | 28 June 1997 |
| About The Object | |
|---|---|
| Object Name | A name or catalog number that astronomers use to identify an astronomical object. |
| Object Description | The type of astronomical object. |
| R.A. Position | Right ascension – analogous to longitude – is one component of an object's position. |
| Dec. Position | Declination – analogous to latitude – is one component of an object's position. |
| Constellation | One of 88 recognized regions of the celestial sphere in which the object appears. |
| Distance | The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs. |
| Dimensions | The physical size of the object or the apparent angle it subtends on the sky. |
| About The Data | |
| Data Description |
|
| Instrument | The science instrument used to produce the data. |
| Exposure Dates | The date(s) that the telescope made its observations and the total exposure time. |
| Filters | The camera filters that were used in the science observations. |
| About The Image | |
| Image Credit | The primary individuals and institutions responsible for the content. |
| Publication Date | The date and time the release content became public. |
| Color Info | A brief description of the methods used to convert telescope data into the color image being presented. |
| Orientation | The rotation of the image on the sky with respect to the north pole of the celestial sphere. |
