GW190929_012149
Gravitational-wave source · GWTC-2.1-confident
A black hole of about 90 solar masses, formed on 2019-09-29 when two black holes of roughly 66 and 27 solar masses spiralled together 10.2 billion light-years away. LIGO and Virgo felt the collision as ripples in spacetime.
Computed render90.3 ☉
mass (the Sun = 1)
267 km
event-horizon radius (computed)
10.2 billion ly
from Earth
66+27 ☉
the two that merged
The two black holes that merged were about 66 (50–88) and 27 (16–42) solar masses. The remnant is 90 (76–113) 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 267 km in radius. The waves we detected had been travelling for 10.2 billion years before they reached us.
Black holes of similar mass
GW190701_203306Gravitational-wave source90.2 ☉GW230914_111401Gravitational-wave source91.2 ☉GW230820_212515Gravitational-wave source92.0 ☉GW240612_081540Gravitational-wave source88.0 ☉GW200308_173609Gravitational-wave source88.0 ☉GW190620_030421Gravitational-wave source88.0 ☉
Source: Gravitational-Wave Open Science Center (GWTC-2.1-confident), LIGO Virgo KAGRA. CC BY 4.0. See data & analysis for full sourcing.