Título
Imagen anotada de Digel Cloud 2S capturada por NIRCAM de Webb (cámara de infrarrojo cercano) y Miri (instrumento de infrarrojo medio), con flechas de brújulas, una barra de escala, tecla de color y superposiciones gráficas para referencia.
Las flechas de brújula norte y este muestran la orientación de la imagen en el cielo. Tenga en cuenta que la relación entre el norte y el este en el cielo (como se ve desde abajo) se voltea en relación con las flechas de dirección en un mapa del suelo (como se ve desde arriba).
La barra de escala está etiquetada en años luz y arcos. Un año luz es igual a aproximadamente 5.88 billones de millas o 9.46 billones de kilómetros. Un arco es igual a 1/3600 de un grado de arco. (La luna llena tiene un diámetro angular de aproximadamente 0.5 grados). El tamaño real de un objeto que cubre un arco en el cielo depende de su distancia del telescopio.
Esta imagen muestra longitudes de onda de luz de infrarrojo cercano e media invisibles que se han traducido en colores de luz visible. La tecla de color muestra qué filtros Nircam y Miri se usaron al recolectar la luz. El color de cada nombre del filtro es el color de luz visible utilizado para representar la luz infrarroja que pasa a través de ese filtro.
En el clúster principal hay cinco flechas blancas, que resaltan las rutas de cinco chorros de protostar.
| About The Object | |
|---|---|
| Object Name | Digel Cloud 2 |
| Object Description | Star cluster on the outskirts of the Milky Way galaxy |
| R.A. Position | 02:48:28.45 |
| Dec. Position | +58:23:29.72 |
| Constellation | Perseus |
| Distance | About 40,000 light-years |
| Dimensions | Image is 1.8 arcmin across (about 21 light-years) |
| About The Data | |
| Data Description | This image was created with Webb data from proposal: 1237 (M. Ressler); Image Processing: Joseph DePasquale (STScI) |
| Instrument | NIRCam, MIRI |
| Exposure Dates | 17 Jan 2023 |
| Filters | NIRCam: F115W, F150W, F200W, F356W, F444W MIRI: F770W, F1280W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam and MIRI instruments. Several filters were used to sample wide 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: Purple: F115W, Blue: F150W, Green: F200W, Yellow: F356W, Orange: F444W, Red: F770W, Red: F1280W |
| 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 | |
| Color Info | A brief description of the methods used to convert telescope data into the color image being presented. |
| Compass and Scale Image | An astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made. |
