SN Helios
- Type
- Supernova, II
- Status
- Confirmed
- Lensing
- Multiply imaged
- Lensing cluster
- RXC J0018.5+1626 (z = 0.547)
- Redshift
- 3.34
- Position
- 00:18:31.50 +16:26:18.0
- Discovered
- 2026
Type II supernova at z = 3.34 found in VENUS JWST imaging on 2026 July 3, magnified 10-20 times (Fujimoto et al. 2026). Only one image has been seen; lens models predict another within about 2-6 years, which would extend time-delay cosmography beyond z = 3.
Papers
- Fujimoto et al. (2026)
SN Helios: A Multiply Imaged Type II Supernova Opening Time-Delay Cosmography beyond redshift of 3