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Star Blasted Through Solar System 70,000 Years Ago
discovery.com ^ | Ian O'Neill

Posted on 02/18/2015 1:11:46 PM PST by BenLurkin

Highlighted by astronomers at the University of Rochester and the European Southern Observatory, the star — nicknamed “Scholz’s star” — has a very low tangential velocity in the sky, but it has been clocked traveling at a breakneck speed away from us.

In other words, from our perspective, Scholz’s star is fleeing the scene of a collision with us.

“Most stars this nearby show much larger tangential motion,” said Eric Mamajek, of the University of Rochester. “The small tangential motion and proximity initially indicated that the star was most likely either moving towards a future close encounter with the solar system, or it had ‘recently’ come close to the solar system and was moving away. Sure enough, the radial velocity measurements were consistent with it running away from the Sun’s vicinity — and we realized it must have had a close flyby in the past.”

...

Using data from the Southern African Large Telescope (SALT) and the Magellan telescope at Las Campanas Observatory in Chile, Mamajek and his collaborators were able to measure the star’s spectra and radial velocity. Through these observations they were able to deduce that Scholz’s star is a dim red dwarf approximately 20 light-years away. It is actually part of a binary system, with its partner being a small brown dwarf (or a ‘failed star’).

Taking these data, the researchers were able to model several different orbital possibilities and deduce that the star almost definitely (to a 98 percent certainty) came within 0.8 light years from the sun. Although this is still quite a margin, the star would have careened though the Oort Cloud — a hypothetical region filled with frozen cometary nuclei surrounding the solar system.

(Excerpt) Read more at news.discovery.com ...


TOPICS: Astronomy
KEYWORDS: 70000yearsago; browndwarf; catastrophism; comets; complutense; darkstar; gemini; johnmatese; mounttoba; neanderthals; nemesis; oortcloud; oumuamua; reddwarf; scholzsstar; spain; sverrejaarseth; toba; unitedkingdom; uofcambridge; uofmadrid; xplanets
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1 posted on 02/18/2015 1:11:46 PM PST by BenLurkin
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To: SunkenCiv

Of possible interest ping.


2 posted on 02/18/2015 1:12:07 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: BenLurkin

70,000 years isn’t that long and could have shaken things loose in the Oort cloud that could still be headed our way.


3 posted on 02/18/2015 1:16:49 PM PST by cripplecreek ("For by wise guidance you can wage your war")
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To: BenLurkin

Could this be the origins of the “Nemesis Mythos”?


4 posted on 02/18/2015 1:17:25 PM PST by GraceG (Protect the Border from Illegal Aliens, Don't Protect Illegal Alien Boarders...)
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To: BenLurkin
a small brown dwarf (or a ‘failed star’)"

I am sure the author intended a racist and possibly anti-small people insinuation there...............

5 posted on 02/18/2015 1:19:15 PM PST by doorgunner69
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To: doorgunner69

What you talkin’ about?


6 posted on 02/18/2015 1:29:45 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: BenLurkin

70,000 years??? Whew...that was close!


7 posted on 02/18/2015 1:29:51 PM PST by Mr. K (Palin/Cruz 2016 (for 16 years of conservative bliss))
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To: Mr. K

A mere blink of the eye cosmologically speaking.


8 posted on 02/18/2015 1:30:41 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: BenLurkin

It might be prudent to look in the opposite direction for a similar but blue-shifted object.


9 posted on 02/18/2015 1:33:21 PM PST by SpaceBar
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To: SpaceBar

http://news.discovery.com/space/astronomy/star-predicted-to-slam-through-the-solar-system.htm


10 posted on 02/18/2015 1:37:26 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: BenLurkin

70,000 years ago, a huge super volcano blew its stuff all over the world. It was called the Lake Toba (Sumatra) catastrophe.

The human population was reduced from about a million to about 10,000 or so souls that prepped well enough to survive.

I have always wanted to know what set it off...now I know.


11 posted on 02/18/2015 1:37:40 PM PST by montomike (Politics should be about service and not a lucrative, money-making opportunity!)
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To: montomike

Probably a coincidence, I think.

But an interesting one!


12 posted on 02/18/2015 1:38:19 PM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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To: doorgunner69
I think he was talking about Gary Coleman.


13 posted on 02/18/2015 1:42:32 PM PST by ConservativeInPA (#JuSuisCharlesMartel)
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To: BenLurkin

Nope. Sorry. The Creation was not that far in the past. So, NOTHING could have happened 70,000 years ago! Science proves it!

https://answersingenesis.org/theory-of-evolution/millions-of-years/rate-research-results-fatal-blow-to-billions-of-years/


14 posted on 02/18/2015 1:43:41 PM PST by GodAndCountryFirst
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To: BenLurkin

I know... can you imagine what that must have looked like?

Am I reading tis article correctly? This thing blew through our solar system 70K years ago?


15 posted on 02/18/2015 1:48:35 PM PST by Mr. K (Palin/Cruz 2016 (for 16 years of conservative bliss))
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To: BenLurkin; Gamecock; F15Eagle
In other words, from our perspective, Scholz’s star is fleeing the scene of a collision with us.

I hope someone followed that star and got its license plate number! Of course, if it's a cute star, you might want to ask it out on a date.

16 posted on 02/18/2015 1:49:53 PM PST by Larry Lucido
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To: BenLurkin

NOT my fault.


17 posted on 02/18/2015 1:50:01 PM PST by Darksheare (Those who support liberal "Republicans" summarily support every action by same.)
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To: BenLurkin
Interesting.

Wonder what the sun traded for Pluto.

18 posted on 02/18/2015 1:50:21 PM PST by eldoradude (It doesn't matter how many it takes, the lightbulb has already been stolen.)
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To: BenLurkin

If that thing was that close I could imagine it easily disrupting planetary orbits and sending any civilization that existed 70K years ago under water


19 posted on 02/18/2015 1:51:06 PM PST by Mr. K (Palin/Cruz 2016 (for 16 years of conservative bliss))
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To: Mr. K
I know... can you imagine what that must have looked like?

Not much to be honest - it's a very faint star. Even at that type of close approach, it wouldn't have been visible to the naked eye.

Am I reading tis article correctly? This thing blew through our solar system 70K years ago?

By some definitions, the outer solar system, yes - but not really the solar system as we commonly think of it. We'd still be looking at this star being somewhere around 1000 times as far from the sun as Pluto.

20 posted on 02/18/2015 1:57:19 PM PST by naturalman1975 ("America was under attack. Australia was immediately there to help." - John Winston Howard)
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