Esta imagen de Urano de Nircam (cámara de infrarrojo cercano) en el telescopio espacial James Webb de la NASA muestra el planeta y sus anillos con nueva claridad. The planet’s seasonal north polar cap gleams in a bright white, and Webb’s exquisite sensitivity resolves Uranus’ dim inner and outer rings, including the Zeta ring—the extremely faint and diffuse ring closest to the planet.
This Webb image also shows 14 of the planet’s 27 moons: Oberon, Titania, Umbriel, Juliet, Perdita, Rosalind, Puck, Belinda, Desdemona, Cressida, Ariel, Miranda, Bianca y Portia.
Un día en Urano es de aproximadamente 17 horas, por lo que la rotación del planeta es relativamente rápida. Esto hace que sea sumamente difícil para los observatorios con un ojo afilado como Webb capturar una imagen simple de todo el planeta: tormentas y otras características atmosféricas, y las lunas del planeta, se mueven visiblemente en cuestión de minutos. Esta imagen combina varias exposiciones más largas y más cortas de este sistema dinámico para corregir esos pequeños cambios a lo largo del tiempo de observación.
La sensibilidad extrema de Webb también recoge una puso de galaxias de fondo, aparece más como manchas de naranja, y hay dos galaxias blancas más grandes y difusas a la derecha del planeta en este campo de visión.
Imagen
NASA, ESA, CSA, STSCI
| About The Object | |
|---|---|
| Object Name | Uranus |
| Object Description | Planet |
| About The Data | |
| Data Description | This image was created from JWST data from proposal: (K. Pontoppidan) |
| Instrument | NIRCam |
| Exposure Dates | 04 September 2023 |
| Filters | F140M, F210M, F300M, F460M |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample medium wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue: F140M, Cyan: F210M, Yellow: F300M, Orange: F460M |
| 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. |
