Esta imagen de NGC 6946 que destaca dos supernovas, SN 2004ET y SN 2017eaw, por Webb’s Miri (cámara de infrarrojo medio), muestra flechas de brújulas, barra de escala y clave de color para referencia.
Las flechas de brújulas del norte y este muestran la orientación de la imagen en el cielo. La barra de escala está etiquetada como 2,600 años luz.
Esta imagen muestra longitudes de onda de luz de infrarrojo intermedio invisibles que se han traducido en colores de luz visible. La tecla de color muestra qué filtros 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 estas imágenes, se asignaron azul, verde y rojo a los datos de Miri de Webb a las 10; 11.3, 12.8 y 15.0; y 18 y 21 micras (F1000W; F1130W, F1280W y F1500W; y F1800W y F2100W, respectivamente).
credits
Science
NASA, ESA, CSA, ORI FOX (Stsci), Melissa Shahbandeh (STSci) Procesamiento
Alyssa Pagan (STSCI)
| About The Object | |
|---|---|
| Object Name | NGC 6946, SN2004et, SN2017eaw |
| Object Description | Dusty supernovae in spiral galaxy NGC 6946 |
| R.A. Position | 20:34:52.30 |
| Dec. Position | +60:09:14.00 |
| Constellation | Cygnus |
| Distance | 22.5 million light-years away |
| Dimensions | Image is about 2.9 arcminutes across (~19,000 light-years) |
| About The Data | |
| Data Description | This image was created with Webb data from proposal: (O. Fox). |
| Instrument | NIRCam |
| Exposure Dates | 20 Sept 2022 |
| Filters | F1000W, F1130W, F1280W, F1500W, F1800W, F2100W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the MIRI instrument. 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: Blue: F1000W, Green: F1130W+ F1280W + F1500, Red: F1800W + F2100W |
| 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. |
