Source: https://www.syfy.com/syfy-wire/no-theres-no-such-thing-as-a-solar-micronova
Likely this latest adaptation of a more plausible theory, which indeed discusses micronovae. "A newly discovered type of stellar explosion could help us better understand thermonuclear outbursts on dead stars. The new phenomena are called micronovae, and they take place on the surface of white dwarf stars that are actively slurping down material from a close binary companion. The accumulation of material onto the white dwarf results in a localized thermonuclear burst: the micronova."
Our local star -- the sun -- is not a dead star nor a white dwarf. Within the Western canon the notion of the star which shown during the day and lead Magi could have been, but the notion that our sun operates on such a cycle as the one you mention is theory from 1997 forward. The "star" in New Testament tradition was not on the theoretical schedule "newly discovered.," so the threads of what is believable and what is not plausible -- such as finding the data of the next polar reversal -- are distinct.
Source: https://www.sciencealert.com/we-ve-just-found-a-brand-new-type-of-star-explosion-the-micronova
One reads from Vogt: "We discovered the number of years between geomagnetic reversals in 1994 to be 12,068 years. This number surprisingly appeared in the Torah in code. The next question was: How did a late Bronze Age man know the exact number of years between reversals? Therefore, we started to look closer at the Torah. We discovered 10 code systems Moses used in writing the surface story of the Torah. This information is explained in Moses and the Ten Code Systems. This lead us to discover the greatest hidden secret in the Torah that related to our primary work. The Torah has in it a way of saving ourselves from the worst parts of the reversal and resulting ice age. The Torah actually has embedded in it the exact month, day and year for the next polar reversal. These are the reasons we had to investigate the Torah and find out what it really was."
Source: http://dieholdfoundation.com/
I suspect that in normative Christian and Jewish traditions, this particular 12K cycle is not actually as Vogt and his Jacksonville, Florida, foundation say it is. The foundation's address -- suggesting a "suite" 133 -- is a UPS store, so this seems quite in line with other such operations.
In Vogt's YouTube he brags of his 1997 book and "discovery", "I am the first one in history to ever develop something like this." Source: https://www.youtube.com/watch?v=WAlyvbt8Nlk
I suspect sourcing back to biblical references -- as his "found in the Torah" claims -- is hubris, when set alongside the admonition of Matthew, Mark, and more including Revelations that "no man" knows the day and hour. Vogt violates that biblical tradition, if his is the "12,000 year cycle" you reference.
Best wishes.
Knowing the century or decade is a far cry from knowing the day or hour.
The Bible give some things to look for:
One of the major signs of the end times is deception. Virtually any media or government outlet. Check.
Another significant sign of the end times is famine and hunger. Hysterical reduction of cows and cow farts, fertilizer, fuel and pesticides. See Sri Lanka, The Netherlands, Canada... Check.
Natural Disasters. Earthquakes, heat waves, floods, droughts, etc. Never a shortage. Check.
Revelation 6:5-8 warns that our world will be rocked by new diseases and subsequent plagues in the end times. AIDS, Ebola, COVID, monkeypox, etc. Check.
War and rumors of war. Check.
Signs in the Heavens. Sudden temporary darkening of Betelgeuse, anomalous warming of planets from Mars to Pluto, James Web detecting far more dust and grit that expected, etc. etc. etc. Check.
One of the signs of the end times many people don’t talk about is persecution. Check.
Jesus prophesied in the final days that there would be lawlessness. Ummmmmm, does it count as lawlessness when it’s all done nice and legal-like by the government? Defund the police? Check.
Off hand, I’d say the signposts are there, but no man knows the day or hour...
Peace and safety, have a great day or hour!