GW250119_025138
Gravitational-wave source · GWTC-5.0
A black hole of about 57 solar masses, formed on 2025-01-19 when two black holes of roughly 34 and 27 solar masses spiralled together 10.1 billion light-years away. LIGO and Virgo felt the collision as ripples in spacetime.
Computed render57.1 ☉
mass (the Sun = 1)
169 km
event-horizon radius (computed)
10.1 billion ly
from Earth
34+27 ☉
the two that merged
The two black holes that merged were about 34 (29–40) and 27 (20–32) solar masses. The remnant is 57 (52–65) solar masses. Values in parentheses are the 90% credible ranges from LIGO, Virgo and KAGRA (GWTC).
Its event horizon, the edge past which nothing returns, spans about 169 km in radius. The waves we detected had been travelling for 10.1 billion years before they reached us.
Black holes of similar mass
GW230702_185453Gravitational-wave source57.0 ☉GW190630_185205Gravitational-wave source56.6 ☉GW241101_220523Gravitational-wave source57.7 ☉GW240615_113620Gravitational-wave source57.8 ☉GW230628_231200Gravitational-wave source56.4 ☉GW230930_110730Gravitational-wave source56.3 ☉
Source: Gravitational-Wave Open Science Center (GWTC-5.0), LIGO Virgo KAGRA. CC BY 4.0. See data & analysis for full sourcing.