Gaia18ajz
| Object type | Black hole |
|---|---|
| Other designations | AT2018uh |
Observation data (Epoch J2000) | |
| Constellation | Scutum  |
| 277.56025 -8.22021 | |
| Declination | 18:30:14.46 -08:13:12.76 |
| Distance | 1.14-1.31 kpc |
| 14.23 ±0.05, 12.81 ±0.1, 12.31 ±0.04, 17.52 ±0.16 | |
| Mass | 4.9-11.1 solar masses |
Gaia18ajz is a candidate black hole that was discovered through a microlensing event. Its mass and distance is not exactly known but it can either be located 1.14 kiloparsecs from earth with a mass of 4.9 solar masses or located at a distance of 1.31 kiloparsecs from earth with a mass of 11.1 solar masses.[1]
It was discovered in 2018 by the Gaia Science Alerts system through gravitational microlensing.[1][2]
References
- ^ a b Howil, K.; et al. (2025). "Uncovering the invisible: A study of Gaia18ajz, a candidate black hole revealed by microlensing". Astronomy & Astrophysics. 694: A94. arXiv:2403.09006. Bibcode:2025A&A...694A..94H. doi:10.1051/0004-6361/202451046.
- ^ "Gaia18ajz". gsaweb.ast.cam.ac.uk. Retrieved 2025-07-30.