MACS J0138 Hubble and Webb Side-by-Side

 MACS J0138 Hubble and Webb Side-by-Side

Left: In 2016 NASA’s Hubble Space Telescope spotted a multiply imaged supernova, nicknamed Supernova Requiem, in a distant galaxy lensed by the intervening galaxy cluster MACS J0138. Three images of the supernova are visible, and a fourth image is expected to arrive in 2035. In this near-infrared image, light at 1.05 microns is represented in blue and 1.60 microns is orange. Right: In November 2023 NASA’s James Webb Space Telescope identified a second multiply imaged supernova in the same galaxy using its NIRCam (Near-Infrared Camera) instrument. This is the first known system to produce more than one multiply-imaged supernova.

Credit Details

Hubble image: NASA, ESA, STScI, Steve A. Rodney (University of South Carolina) and Gabriel Brammer (Cosmic Dawn Center/Niels Bohr Institute/University of Copenhagen).

JWST image: NASA, ESA, CSA, STScI, Justin Pierel (STScI) and Andrew Newman (Carnegie Institution for Science). 

Read the story.



NASA, ESA, CSA, STScI, Justin Pierel (STScI), Drew Newman (CIS)

About The Object
Object Name MACSJ0138, Supernova Encore
Object Description Lensed galaxy/supernova
R.A. Position 01:38:02.16
Dec. Position -21:55:22.41
Constellation Cetus
Distance About 10 billion light-years (distance to galaxy hosting the supernova at redshift z=2)
About The Data
Data Description This image was created with Webb data from proposal: (J. Pierel) and HST data from proposal: (A. Newman) Image Processing: Alyssa Pagan
Instrument Hubble> WFC3/IR Webb> NIRCam
Exposure Dates 18-19 July 2016, 05 December 2023
Filters Hubble> F105W, F160W Webb> F115W, F150W, F200W, F277W, F356W, F444W
About The Image
Color Info These images are a composite of separate exposures acquired by the Hubble Space Telescope using the WFC3/IR instrument and the James Webb Space Telescope using the NIRCam 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:   Left (Hubble) = Cyan: F105W, Orange: F160W Right (Webb) = Blue: F115W+F150W, Green: F200W+F277W, Red: F356W+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
  • 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.