One would think the powers that be will succeed in permanently hiding the Nemesis star from the public. This scheme will however be abruptly eradicated due to a periodic event associated with this particular star. When coming from below the ecliptic, Nemesis will only be visible as a dull red glow, just occasionally revealing more substantial light emanations. But the closing proximity to the Sun will surely have an effect on both celestial bodies. As for Nemesis, the star will build up an electrical potential that eventually will produce visible light. This is my interpretation of the process: The star will initially create a dense outer layer, consisting of free electrons. This layer will 'pull out' protons from the neutron based surface of the star and the interaction of these particles will produce light.
These reactions require some amount of 'free space' between the stars. There are however obstacles restricting this flow, mainly the Oort cloud surrounding each star. The Oort cloud being the balance point between the outward facing solar wind (protons and alpha particles) and the inward directed force of gravity. As long as one or two Oort cloud layers exist between the stars, the strength of the electrical discharges will be moderate. But when both stars have direct access to each other, there is nothing holding back the flow of charge; just like a light bulb gets connected to an electrical outlet, the Nemesis star will ignite. The verse in Matt. 24:27 may refer to this: "For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be".
The ancient Egyptians were very familiar with this recurring phenomenon and it was manifested in mythological aspect as the "Bennu Bird", a magical Phoenix that repeatedly dies in flames only to rise again from the ashes. The Egyptian Bennu appeared in the image of an 'Ardea Bennuides' Heron, an animal now extinct but very similar to the existing Great Blue Heron. The silver-grey white and blue feathers and plumes of this bird must have reminded the ancients of this rare event; a dull red star suddenly transforming into a silver shining star. For so it will be again, of course, the Bennu Bird will rise in the sky and continue on its path towards the highest point in the northern hemisphere. There it will reside for some time, nearly at a standstill, before it begins descending towards the ecliptic.
The shining Nemesis, in this state more properly named 'Osiris', will probably maintain its luminosity during its entire path in the northern hemisphere. Even after passing the ecliptic plane, on the way down, the star will still emit light, well over a time period of 700 years. However, Osiris are destined to make the passing of the Sun on a more narrow path this time. This will bring Osiris to cross its own tail at a certain point below the ecliptic. Osiris is now literally "hanging on its cross", an environment in space filled with boulders and debris. The impact will prove fatal for Osiris; the luminous light bridge between the Sun and Osiris will break. Osiris will flicker out and transform itself back to the Nemesis star again. And thus the cycle is complete, Nemesis will begin a new tour in the underworld realm.
Or has the basic conditions changed this time? Has the star Nemesis regained its powers to remain in a luminous stage even in the abyss? This situation cannot be ruled out. When looking at the cyclical stages in the development of humankind, we are now moving out of the problematic third cycle with the battle of opposites forces; light and dark, pleasure and pain, good and evil. It might just be that the tumultuous days are over, and that our 'guiding star' will mirror this by permanently lighting up again. Close to the third millennium, we will know what the outcome will be in that regard. But first will come the Millennial Kingdom, a period of peace, healing and restitution. Hard and lingering was the suffering of the people, but in the end light must shine forth, for evil simply cannot last forever.