| UNCOVER-z12 | |
|---|---|
UNCOVER-z12, as seen in November of 2023
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| Observation data (J2000 epoch) | |
| Constellation | Sculptor |
| Right ascension | 3.57087 |
| Declination | −30.40158 |
| Redshift | z = 12.393 |
| Distance | 32.21 gly (estimated) |
| Characteristics | |
| Type | Lyman-break galaxy |
UNCOVER-z12 is a high-redshift Lyman-break galaxy discovered by the James Webb Space Telescope (JWST)[1] during NIRCam imaging for the JWST Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER) project[2] in November 2023. UNCOVER-z12 is within the Abell 2744 supercluster in the constellation Sculptor.[3] It is the 5th-most distant object ever discovered as of 2024, and is estimated to be 32.21 giga-lightyears from Earth.
UNCOVER-z12 is a Lyman-Break galaxy. Due to the recent discovery date, not much more is known about the galaxy itself.[4]
UNCOVER-z12 was first observed when large amounts of gravitational lensing from Abell 2744 made the galaxy visible. Abell 2744 is around 3.5 billion light-years away from the Milky Way.[5]
The gravity of Abell 2744 warps the fabric of space-time sufficiently to magnify the light of more faraway galaxies. The James Webb Space Telescope used the gravitational lensing to discover UNCOVER-z12, and further studies of deep galaxies located within Abell 2744 are currently ongoing.[6]
UNCOVER-z13 is a second, more far-away galaxy that was located on November 14, 2023, using the same systems.[7] It has a redshift of 13, making it the 3rd most distant object ever discovered in the observable universe.[8]
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