  The Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70
young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the
Scorpius-Centaurus association with an average age of $15\pm3\,$Myr. We report
the detection of a co-moving companion around the K3IV star TYC 8998-760-1
(2MASSJ13251211-6456207) that is located at a distance of $94.6\pm0.3\,$pc
using SPHERE/IRDIS on the VLT. Spectroscopic observations with VLT/X-SHOOTER
constrain the mass of the star to $1.00\pm0.02\,M_{\odot}$ and an age of
$16.7\pm1.4\,$Myr. The companion TYC 8998-760-1 b is detected at a projected
separation of 1.71'', which implies a projected physical separation of
$162\,$au. Photometric measurements ranging from $Y$ to $M$ band provide a mass
estimate of $14\pm3\,M_\mathrm{jup}$ by comparison to BT-Settl and AMES-dusty
isochrones, corresponding to a mass ratio of $q=0.013\pm0.003$ with respect to
the primary. We rule out additional companions to TYC 8998-760-1 that are more
massive than $12\,M_\mathrm{jup}$ and farther than $12\,$au away from the host.
Future polarimetric and spectroscopic observations of this system with ground
and space based observatories will facilitate testing of formation and
evolution scenarios shaping the architecture of the circumstellar environment
around this 'young Sun'.
