Esta imagen de la cassiopeia un remanente de supernova, capturada por el nircam de Webb (cámara de infrarrojo cercano) muestra flechas de brújula, barra de escala y clave de color para referencia.
Las flechas de la brújula del norte y este muestran la orientación de la imagen en el cielo en el cielo.
La barra de escala está etiquetada en los años de luz, que es la distancia de la distancia de la distancia. (La luz tarda 3 años en viajar a una distancia igual a la longitud de la barra de escala). Un año luz es igual a aproximadamente 5.88 billones de millas o 9.46 billones de kilómetros.
Esta imagen muestra longitudes de onda de luz cercanas al infrarrojo invisibles que se han traducido en colores de luz visible. La tecla de color muestra qué filtros Nircam 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.
créditos
Imagen
nasa, ESA, CSA, STSCI, Danny MilisavlJevic (Universidad de Purdue), ilse de Looze (Ugent), Té Temim (Temperina de Té Tempreton)
About The Object Object Name Cassiopeia A; SNR G111.7-02.1 Object Description Supernova remnant R.A. Position 23:23:24.00 Dec. Position +58:48:54.00 Constellation Cassiopeia Distance 11,090 light-years Dimensions Image is about 5.8 arcminutes across (19 light-years). About The Data Data Description This image was created with Webb data from proposal: (D. Milisavljevic). Instrument NIRCam Exposure Dates 05 November 2022 Filters F162M, F356W, F444W 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 specific 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: F162M, Green: F356W, Red: F444W
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.
