OJ Porteria OJ Porteria Jose Elmer "OJ" Porteria (born May 9, 1994) is a Filipino footballer who plays as a winger or attacking midfielder for Philippines Football League club Ceres–Negros. A product of the D.C. United Academy, he moved to the Philippines where he played for Kaya. He is a member of the Philippines national team, as well as the Philippines under-22 and under-23 teams. Porteria started playing football at the age of four after his older brother had taught him and eventually joined his first ever club, The Fireballs. At the age of six, he joined a travel club called Team
OJ 287 and precision of observed companion orbits, but the calculated value will be further refined using future measurements. The companion's orbit is decaying via the emission of gravitational radiation and it is expected to merge with the central black hole within approximately 10,000 years. In order to reproduce all the known outbursts, a recent study shows that the rotation of the primary black hole has to be 28% of the maximum allowed rotation for a Kerr black hole. OJ 287 OJ 287 is a BL Lac object located 3.5 billion light-years away that has produced quasi-periodic optical outbursts going back approximately