Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

The Mystery of the North Star: Astronomers baffled to find Polaris is getting BRIGHTER
Daily Mail ^ | UPDATED: 16:18 EST, 5 February 2014 | MARK PRIGG

Posted on 02/06/2014 12:11:57 AM PST by ApplegateRanch

Team found that Polaris is 2.5 times brighter today than in 137CE Experts say find is 'entirely unexpected'

Astronomers have discovered that Polaris, the north star, is getting brighter. They say the star has suddenly reversed two decades of dimming. It is expanding at more than 100 times the rate they expected - and nobody is sure why.

A team led by Scott Engle of Villanova University in Pennsylvania recalibrated historic measurements of Polaris by Ptolemy in 137 C.E., the Persian astronomer Al-Sufi in 964 C.E., and others. They investigated the fluctuations of the star over the course of several years, combing through historical records and utilising the Hubble Space Telescope. The team found that Polaris is 2.5 times brighter today than in Ptolemy's time, which they say is a remarkable rate of change.

'If they are real, these changes are 100 times larger than predicted by current theories of stellar evolution,' says Villanova astronomer Edward Guinan. The team's data also hint that the star's cyclic 4-day variation in brightness, although still weak, is once again growing more robust--but no one knows what's driving these flutterings or how long they will last. Engle and his team began to research the star around the beginning of 2000, when they found that the dropping brightness was on the rise again.

(Excerpt) Read more at dailymail.co.uk ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; catastrophism; edwardguinan; fauxiantrolls; godsgravesglyphs; haltonarp; polaris; ptolemy; stringtheory; xplanets
Navigation: use the links below to view more comments.
first 1-5051-78 next last

1 posted on 02/06/2014 12:11:57 AM PST by ApplegateRanch
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Should be of interest tio you.


2 posted on 02/06/2014 12:12:56 AM PST by ApplegateRanch (Love me, love my guns!©)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

Bkmk


3 posted on 02/06/2014 12:29:27 AM PST by Faith65 (Jesus Christ is my Lord and Savior!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch
It reached the end of the universe, turned around, and is coming back ....

It's all perspective

4 posted on 02/06/2014 12:51:05 AM PST by knarf (I say things that are true .. I have no proof .. but they're true.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

So they are making this claim based on a 1100 year old observation compared to new intrumentation made just 14 years ago?

I think that explains it right there.


5 posted on 02/06/2014 12:51:15 AM PST by Organic Panic
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

‘Tis a ystery.


6 posted on 02/06/2014 12:55:37 AM PST by fieldmarshaldj (Resist We Much)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Organic Panic

partly; but the reversals and major brightening are from comparing 20th century measurements; the stuff going back centuries is a different issue. The article is a typical Daily Mail jumble.


7 posted on 02/06/2014 12:57:47 AM PST by ApplegateRanch (Love me, love my guns!©)
[ Post Reply | Private Reply | To 5 | View Replies]

To: fieldmarshaldj

Very ysterious!


8 posted on 02/06/2014 1:10:34 AM PST by DannyTN
[ Post Reply | Private Reply | To 6 | View Replies]

To: ApplegateRanch

Question from the ignorant here: what does CE stand for?


9 posted on 02/06/2014 1:12:03 AM PST by mn-bush-man
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch
'If they are real,(ie the measurements)

Key phrase to this article.

10 posted on 02/06/2014 1:15:18 AM PST by Fzob (Jesus + anything = nothing, Jesus + nothing = everything)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Organic Panic

Yes it’s sort of like Global Warming. Trying to use modern measurements against estimated ancient measurements doesn’t necessarily work well. And it is Bush’s fault.


11 posted on 02/06/2014 1:15:22 AM PST by Conspiracy Guy (Did the ancients know they were ancients? Or did they see themselves as presents?)
[ Post Reply | Private Reply | To 5 | View Replies]

To: mn-bush-man

Common Era. PC way of saying AD, originated in at least mid 1800s.


12 posted on 02/06/2014 1:15:33 AM PST by ApplegateRanch (Love me, love my guns!©)
[ Post Reply | Private Reply | To 9 | View Replies]

To: ApplegateRanch

IT WENT BOOOOOOOOOOOOOOOOOOOOOOOOOMMMM!!


13 posted on 02/06/2014 1:16:36 AM PST by wastedyears (The Ender's Game movie was a stupendous, colossal, galactic failure to me.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

Polaris is such a quirky north star. Thuban was much more reliable.


14 posted on 02/06/2014 1:37:34 AM PST by RC one
[ Post Reply | Private Reply | To 1 | View Replies]

To: mn-bush-man
Question from the ignorant here: what does CE stand for?

It's an atheist thing. Their fingers just can't write AD or BC because God is in those abbreviations.

15 posted on 02/06/2014 1:53:05 AM PST by Ethan Clive Osgoode (<<== Click here to learn about Evolution!)
[ Post Reply | Private Reply | To 9 | View Replies]

To: RC one

You’re right; Thuban is the logical choice.

I preferred Vega, but Chevy took it over and tarnished the name, and so now we’re stuck with Polaris, a wonky Dodge product.

We need to crank Thuban back into position.


16 posted on 02/06/2014 2:00:35 AM PST by ApplegateRanch (Love me, love my guns!©)
[ Post Reply | Private Reply | To 14 | View Replies]

To: ApplegateRanch

Must be the reason for global warming here./s


17 posted on 02/06/2014 2:10:19 AM PST by teacherwoes (obamacare--like you need a hole in your head)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch; mn-bush-man

I always read it as “Christian Era” when I come across it. Which is really what it means.


18 posted on 02/06/2014 2:15:42 AM PST by FreedomPoster (Islam delenda est)
[ Post Reply | Private Reply | To 12 | View Replies]

To: ApplegateRanch
The story is at many places including here:
http://earthsky.org/space/polaris-aka-the-north-star-is-getting-brighter

19 posted on 02/06/2014 3:19:35 AM PST by preacher (I am not a global warming hoax denier.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: Organic Panic
So they are making this claim based on a 1100 year old observation compared to new instrumentation made just 14 years ago?

With what instrumentation. The first telescopes were made around 1608. The first photometers were made around 1861 and I imagine even those were not sensitive enough in a telescope for starlight measurements.

Comparisons were made by eye judging the light by comparing it to another one at least before 1608. So just how accurate that is the article does not say.

20 posted on 02/06/2014 3:25:13 AM PST by sr4402
[ Post Reply | Private Reply | To 5 | View Replies]

To: Organic Panic

Must be another consequence of Global Warming...


21 posted on 02/06/2014 3:37:32 AM PST by Tallguy
[ Post Reply | Private Reply | To 5 | View Replies]

To: ApplegateRanch

Polaris is a Cepheid variable. It’s been getting dimmer and brighter for a long time. Its various sputterings has suggested that something interestingly unstable is going on. If I recall, it’s large enough (8-12 solar masses) that it could go supernova. But if it did, we won’t know about it for 600 years. So, whatever we’re seeing now is what it was doing 600 years ago. (Yawn...old news.)


22 posted on 02/06/2014 3:40:12 AM PST by Gen.Blather
[ Post Reply | Private Reply | To 1 | View Replies]

To: DannyTN
Very ysterious!

Very ysterious indeed!

23 posted on 02/06/2014 3:46:32 AM PST by Focault's Pendulum (I live in NJ....' Nuff said!)
[ Post Reply | Private Reply | To 8 | View Replies]

To: ApplegateRanch

The North Star Polaris Is Getting Brighter by Nola Taylor Redd, SPACE.com Contributor | January 28, 2014 06:41am ET Photo of Polaris, the North Star and close-up This long-exposure photo (left) shows how the North Star, Polaris, stays fixed in the night sky as other stars appear to move during the night due to Earth's rotation. At right, a close-up of the multi-star Polaris system. Credit: Left image: M. Menefee; Right: N. Carboni; Assembly: D. Majaess


24 posted on 02/06/2014 3:48:22 AM PST by JoeProBono (SOME IMAGES MAY BE DISTURBING VIEWER DISCRETION IS ADVISED;-{)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch
Maybe it's headed this way!


25 posted on 02/06/2014 3:50:09 AM PST by P.O.E. (Pray for America)
[ Post Reply | Private Reply | To 1 | View Replies]

To: mn-bush-man

CE stand for Common Era, a substitute for “Anno Domini,” The Year of our Lord. It is used by miscreants who are offended by the terms AD and BC. It is still based on the birth of the Baby Jesus.


26 posted on 02/06/2014 3:52:32 AM PST by Vehmgericht
[ Post Reply | Private Reply | To 9 | View Replies]

To: fieldmarshaldj
‘Tis a ystery.

'Tis an ystery.

Remember that the indefinite article changes to "an" before vowels!

27 posted on 02/06/2014 4:21:41 AM PST by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
[ Post Reply | Private Reply | To 6 | View Replies]

To: exDemMom

I got yer dangling participle right ‘ere !


28 posted on 02/06/2014 4:23:00 AM PST by fieldmarshaldj (Resist We Much)
[ Post Reply | Private Reply | To 27 | View Replies]

To: JoeProBono

Nice picture. I am glad that star motion is too slow to see; I’m getting dizzy just looking at the pic.


29 posted on 02/06/2014 4:23:56 AM PST by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
[ Post Reply | Private Reply | To 24 | View Replies]

To: exDemMom
aybe the REAL 'ystery' is: "OMG! What happened to the 'M'?"

:P

30 posted on 02/06/2014 4:24:43 AM PST by ZinGirl (kids in college....can't afford a tagline right now)
[ Post Reply | Private Reply | To 27 | View Replies]

To: ApplegateRanch
Interesting that the comments posted at the link are decidedly right leaning.

Lots of Freeper-like jokes.

31 posted on 02/06/2014 4:30:12 AM PST by airborne (MY HEROES DON'T WEAR CAPES. MY HEROES WEAR DOG TAGS ! ! !)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch
Astronomers have discovered that Polaris, the north star, is getting brighter.

My guess is that it's actually a headlight..........

Sorry but no, I am not an astrophysicist.....

32 posted on 02/06/2014 4:33:14 AM PST by Hot Tabasco (I think I've lost my mojo.....)
[ Post Reply | Private Reply | To 1 | View Replies]

To: exDemMom
Well just remember, the stars aren't in motion, we are.

You may puke now, if you like.

33 posted on 02/06/2014 4:35:29 AM PST by katana (Just my opinions)
[ Post Reply | Private Reply | To 29 | View Replies]

To: Ethan Clive Osgoode

I like to think of CE as Christian Era. :)


34 posted on 02/06/2014 4:52:27 AM PST by Library Lady (When little men cast long shadows, the day is almost ended. – Paul Harvey)
[ Post Reply | Private Reply | To 15 | View Replies]

To: exDemMom


35 posted on 02/06/2014 4:55:49 AM PST by JoeProBono (SOME IMAGES MAY BE DISTURBING VIEWER DISCRETION IS ADVISED;-{)
[ Post Reply | Private Reply | To 29 | View Replies]

To: ApplegateRanch
Team found that Polaris is 2.5 times brighter today than in 137CE 

Funny number. It is the amount of one magnitude difference in modern notation. Ptolemy subdivided his stars into 15 brightness levels, so it is more precise than just by single magnitudes.

36 posted on 02/06/2014 5:04:05 AM PST by KarlInOhio (Republican amnesty supporters don't care whether their own homes are called mansions or haciendas.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

Thuban? Is that some new car company?


37 posted on 02/06/2014 5:10:34 AM PST by McGruff (I'm a Conservative. Not necessarily a Republican.)
[ Post Reply | Private Reply | To 16 | View Replies]

To: ApplegateRanch
Astronomers have discovered that Polaris, the north star, is getting brighter. They say the star has suddenly reversed two decades of dimming. It is expanding at more than 100 times the rate they expected - and nobody is sure why.

Two theories:

or


38 posted on 02/06/2014 5:38:39 AM PST by JRios1968 (I'm guttery and trashy, with a hint of lemon. - Laz)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

if it is after 1 AD. I refer to it as the Christian Era.


39 posted on 02/06/2014 5:53:38 AM PST by Patriot365
[ Post Reply | Private Reply | To 12 | View Replies]

To: ApplegateRanch

Yes, Vega became tarnished by its oxidative nature and generally cast a poor reflection on Chevy. Not to worry however, Thuban will come back around again in a little over 18,000 years and all will be well again.


40 posted on 02/06/2014 6:01:59 AM PST by RC one
[ Post Reply | Private Reply | To 16 | View Replies]

To: fieldmarshaldj

Well, it’s either Global Warming or Bush’s fault.


41 posted on 02/06/2014 6:03:28 AM PST by MrB (The difference between a Humanist and a Satanist - the latter admits whom he's working for)
[ Post Reply | Private Reply | To 6 | View Replies]

To: mn-bush-man

The libs want to substitute “common era” for “AD” (year of our Lord).

But, when you see “CE”, just say “Christian era”.


42 posted on 02/06/2014 6:05:04 AM PST by MrB (The difference between a Humanist and a Satanist - the latter admits whom he's working for)
[ Post Reply | Private Reply | To 9 | View Replies]

To: ApplegateRanch

What does C.E. stand for?


43 posted on 02/06/2014 6:10:54 AM PST by nikos1121
[ Post Reply | Private Reply | To 1 | View Replies]

To: FreedomPoster

really?


44 posted on 02/06/2014 6:13:58 AM PST by nikos1121
[ Post Reply | Private Reply | To 18 | View Replies]

To: ApplegateRanch

What is 137CE?

The star’s storage unit?


45 posted on 02/06/2014 6:18:27 AM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch

I expect to hear the following any time now from Jay Carney: “Not only will Obamacare improve people’s lives by incentivizing people to work less hours, or not work at all, but it makes the North Star shine brighter.”


46 posted on 02/06/2014 6:19:03 AM PST by GreenHornet
[ Post Reply | Private Reply | To 1 | View Replies]

To: wastedyears
IT WENT BOOOOOOOOOOOOOOOOOOOOOOOOOMMMM!!

Which raises the question - did it really make a sound in the vacuum of space? If so, did the gases that comprised the BOOOOOOOOOOOOOOOOOOOOOOOOOMMMM provide the vehicle for the sound? If this is the case, did any trees in the woods hear the sound?

So many questions for the scientists to focus on and all they care about is how it didn't stop global warming...

47 posted on 02/06/2014 6:37:19 AM PST by trebb (Where in the the hell has my country gone?)
[ Post Reply | Private Reply | To 13 | View Replies]

To: ApplegateRanch

So BC is now... what, UE?

Dang, I hate it when I don’t get those memos...


48 posted on 02/06/2014 6:37:19 AM PST by Hatteras
[ Post Reply | Private Reply | To 12 | View Replies]

To: ApplegateRanch

49 posted on 02/06/2014 6:55:38 AM PST by yefragetuwrabrumuy (WoT News: Rantburg.com)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ApplegateRanch
I wonder if one of the bubbleheads on CNN will ask if this is yet another result of global warming, like that meteor a couple of months ago.


50 posted on 02/06/2014 7:59:04 AM PST by jiggyboy (Ten percent of poll respondents are either lying or insane)
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-78 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson