Astronomy   View all facts   Glossary   Help

physical phenomena > event > era > Big Bang era > nucleosynthetic era

nucleosynthetic era comparison table

Subject	has start time	has definition	is preceded by	is followed by	is a kind of	has duration
Big Bang era	relative to the Big Bang	A theoretical era postulated to have occurred after the Big Bang. They are in order : Planck era hadron era inflation era lepton era nucleosynthetic era radiation era matter era			era
nucleosynthetic era	1 s after the Big Bang	The Big Bang era when neutrons were produced and helium and deuterium were synthesized. At t = 200 sec, nucleosynthesis began rather abruptly and virtually all deuterium was synthesized to helium.	lepton era	radiation era	Big Bang era	1000 s

Next Big Bang era: Planck era    Up: Big Bang era    Previous Big Bang era: matter era