A growing number of people have come to accept the reality of Nemesis/Nibiru being a real cosmic object, not just a mythological concept. This awareness comes from two kinds of observations, on the one hand people can hardly avoid noticing severe Earth changes taking place on a daily basis. On the other there are also observers who notice unknown objects in the sky, especially when using IR sensitive equipment. So Nemesis appears to have returned from its long journey below the ecliptic. It surely has some periodic properties though we do not know the exact circumstances. A question that emerges is of course; where does Nemesis come from, what is the origin of the star? Planet Jupiter is almost a star, I contend Jupiter once was and in many ways still behave as the Sun's primary partner.
Nemesis has likely been captured (or the other way around), its strong orbital inclination seem to suggest that. Of course, it could have come from almost anyware in the vast Universe. My sense however, is that it arrived from a nearby solar system. We now enter a highly speculative field but bear with me for a moment. What are the nearest stars in our solar neighborhood? About four light years away we find the Alpha Centauri system, some eight light years away lies the Sirius system. I will cut directly to the chase and propose Alpha Centauri as the place of birth for Nemesis. But the matter is a bit complicated. Alpha Centauri A is a yellow Sun, slightly larger than our Sun. They are both in orbit around each other, and together in a larger orbit around the heavy blue star Sirius.
Two all-embracing cycles appear to be linked to our Sun, one of ~100,000 years and one of ~26,000 years. Based on new research, I now hold the 100,000 year cycle to be connected to the Sun's orbit around Sirius. The 26,000 year cycle I believe is linked to the Centauri system. Mainstream science does not recognize gravity to work these great distances but I contend gravity among stars are governed by different laws than on a planetary scale. Thus, we must assume the Sun to occasionally move in very close to the Centauri star system. Within this timeframe, stars may interact with each other to form new appearances. It must have been on one of these junctures, that Nemesis got very close to our neighborhood and made the transit to become a member of our Solar system.
Was Nemesis comparable with the Alpha Centauri star? I propose it was originally heavier; as the Sun 'Osiris', it had about 2.3 solar masses, compared to Alpha Centauri's 1.1 solar masses. They both emerged from a larger yellow star, hypothetically named 'Centa', who ended up divided under the influence of a larger body still, presumable Canopus or Sirius. Out of the "fission energy", a blue gas giant emerges, it will accompany Osiris on its journey to our Solar system. Is the Sun already present at this time? No, residing are a large yellow sun called 'Apsu', orbited by a slightly smaller sun; 'Barbaru' or 'Ur-Bar-Ra'. At first, Osiris will quietly join this system. Later, the very first "Oedipus prophesy" unfolds: Osiris will accidently kill his father (Apsu) and marry his mother (Barbaru).
At one point in history, Osiris got on a direct collision course with the Apsu sun. The two bodies confront in turmoil. Apsu flickers out, dissipates and transmutes to lesser bodies. Osiris remains a solar entity but looses a large part of its mass. Two lesser Sun's emerge out of Osiris, they will later be captured by Alpha Centauri A and known as 'Centauri B' and red dwarf 'Proxima". At this stage, the Sun Barbaru is the dominant entity. Osiris, who was left with about 1.3 solar masses, is slowly drained by Barbaru. This results in Osiris collapsing and turning into Nemesis, a neutron star. But Nemesis fights back and gradually pulls large entities out of Barbaru. The Sun, Saturn and Venus is born in this way. Nemesis partner are now the Sun, and Barbaru is reduced to present day Jupiter.
For a more detailed description; please read: "The Star Epos".