About the Object
| Name: | MACS J0417.5-1154 | |
|---|---|---|
| Distance: |
5 billion light years z=0.441 (redshift) | |
| Constellation: | Eridanus | |
| Category: | Galaxies | |
Coordinates
| Position (RA): | 4 17 34.81 |
|---|---|
| Position (Dec): | -11° 54' 39.71" |
| Field of view: | 2.40 x 2.40 arcminutes |
| Orientation: | North is 19.4° right of vertical |
Colours & filters
| Band | Wavelength | Telescope |
|---|---|---|
| Optical | 900 nm | James Webb Space Telescope NIRCam |
| Infrared | 1.5 μm | James Webb Space Telescope NIRCam |
| Infrared | 4.44 μm | James Webb Space Telescope NIRCam |
MACS J0417.5-1154 Wide Field (NIRCam)
A cosmic question mark appears amid a powerful gravitational lens in the James Webb Space Telescope’s wide-field view of the galaxy cluster MACS-J0417.5-1154. Gravitational lensing occurs when something is so massive, like this galaxy cluster, that it warps the fabric of space-time itself, creating a natural funhouse-mirror effect that also magnifies galaxies behind it.
The rarely seen type of lensing captured here, which astronomers term hyperbolic umbilic, created five repeated images of one galaxy pair. The red, elongated member of this pair traces the familiar shape of a question mark across the sky due to the distortion, with another unrelated galaxy happening to be in just the right space-time to appear like the question mark’s dot – especially for humans who love to recognize familiar shapes and patterns.
Credit:NASA, ESA, CSA, STScI, V. Estrada-Carpenter (Saint Mary’s University)
About the Image
| Id: | questionmark2 | |
|---|---|---|
| Type: | Observation | |
| Release date: | 4 September 2024, 16:00 | |
| Size: | 4623 x 4623 px | |
