  The discovery of 2012VP113 initiated the debate on the origin of the Sedna
family of planetesimals in orbit around the Sun. Sednitos roam the outer
regions of the Solar System between the Egeworth--Kuiper belt and the Oort
cloud, in extraordinary wide (a>150au) orbits with a large perihelion distance
of q>30au compared to the Earth's (a=1au and eccentricity e=(1-q/a) ~ 0.0167 or
q=1au). This population is composed of a dozen objects, which we consider a
family because they have similar perihelion distance and inclination with
respect to the ecliptic i=10--30deg. They also have similar argument of
perihelion omega=340+/-55deg. There is no ready explanation for their origin.
Here we show that these orbital parameters are typical for a captured
population from the planetesimal disk of another star.Assuming the orbital
elements of Sednitos have not changed since they acquired their orbits, we
reconstruct the encounter that led to their capture. We conclude that they
might have been captured in a near miss with a 1.8MSun star that impacted the
Sun at ~340au at an inclination with respect to the ecliptic of 17--34deg with
a relative velocity at infinity of ~4.3km/s. We predict that the
Sednitos-region is populated by 930 planetesimals and the inner Oort cloud
acquired ~440 planetesimals through the same encounter.
