This image of NGC 6946 highlighting two supernovae, SN 2004et and SN 2017eaw, by Webb’s MIRI (Mid-Infrared Camera), shows compass arrows, scale bar, and color key for reference.
The north and east compass arrows show the orientation of the image on the sky. The scale bar is labeled 2,600 light-years.
This image shows invisible mid-infrared wavelengths of light that have been translated into visible-light colors. The color key shows which MIRI filters were used when collecting the light. The color of each filter name is the visible light color used to represent the infrared light that passes through that filter.In these images, blue, green, and red were assigned to Webb’s MIRI data at 10; 11.3, 12.8, and 15.0; and 18 and 21 microns (F1000W; F1130W, F1280W, and F1500W; and F1800W and F2100W, respectively).
Credits
Science
NASA, ESA, CSA, Ori Fox (STScI), Melissa Shahbandeh (STScI)
Image Processing
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. |
