Could The Bethlehem's star be an eruption of Sirius B or Van Maanen's star? The answer to the question of Bethlehem's star could be an eruption of the surface of Van Maanen's star or Sirius B. Could Van Maanen's (1) star (Van Maanen 2) or Sirius B (2)the Bethlehem's star? Van Maanen's star is too cold for being that star, but could that thing be the Sirius B. The age of Sirius B is about 228 million years, but there is the possibility that some kind of eruption on the surface of Sirius B has caused the effect, what we are known as Bethlehem's star. The star itself can be old, but sometimes the white dwarfs and neutron stars are impacting with bigger particles or a large mass of gas or dust will be dropped to the surface of the star, and that causes a very big explosion. So this kind of eruption that happens at close star would cause an effect that the new star has been born to skies. The most common explanation for that thing