Dusty Supernovae (MIRI Compass Image)

 Dusty Supernovae (MIRI Compass Image)

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
  • Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
  • Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
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.