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Posts Tagged ‘Planet’

Planet That Should Not Be,IS

In Astrophysics on June 17, 2013 at 08:27

Flights of Fancy, this is what I call about the Modern Astronomical Theories, and even Astrophysics.

Beyond Solar System Planet

Plant Outside Solar System

It has been believed that ,in Science, Scientists observe some phenomenon, find some more similar phenomenon, formulate a Theory, check with all available material and verify the Theory and announce it.

Not any more!

People find something which they do not understand yet, they publish it as an Axiom!

Be it drinking Coffee, Cancer,Black holes!

One such is the finding of a Planet that has been found by the Hubble telescope.

With the present Laws of Astrophysics and Physics, it should not be there.there, it should not Exist.

But IT IS!

Story:

TW Hydrae, a star located about 176 light years away, is one of the closest things in the universe we have to a time machine. That’s because it’s only about 8 million years old, and its believed to look a lot like what our own Solar System looked like in the first few million years of its existence. By studying TW Hydrae, astronomers can learn more about the history of our own Sun.

Recently, while observing this star, the Hubble Telescope found something pretty amazing – a gap in the star’s protoplanetary disk. The disk, which was discovered a few years ago, is an accretion of large amounts of material that are expected to coalesce into a planet over the course of time. The most likely reason why such a gap would exist would be theformation of the planet. As the planet traveled around the star, its gravity would either attract or push the disk material out of its way. Such a planet would be somewhere in between 6 to 28 times more massive than Earth.

If the gap really is where a planet is located, then that planet is 7.5 billion miles from its star. That’s about twice as far as Pluto’s distance from our own Sun, making this the planet that is furthest from its parent star that we know of.

Here’s the real kicker about this planet, though: if it’s there, then current astronomical theories about how planets form are at least partially wrong. Planets are expected to form slowly over time, accumulating more and more rock and dust as it travels through the protoplanetary disk. Because planets like this are so far out from their stars, their orbits are slower and there is less material available to form a planet. Given that, it should take about 200 million years for that planet to have formed – way more years than TW Hydrae has been around.

Source:

http://www.forbes.com/sites/alexknapp/2013/06/15/hubble-may-have-discovered-a-planet-being-born-that-shouldnt-exist/

Planet With No Star Video

In Astrophysics, videos on November 25, 2012 at 16:39

We have been taught that a Planet rotates around a Star and that is what makes the Planet stable by maintaining it to stay in equilibrium; it is the reason for Seasons , Day and Night.

Now Astronomers have found a Rogue Planet with No Star to orbit.

Planet With No Star_jpg.

Planet With No Star

“Astronomers using ESO’s Very Large Telescope and the Canada-France-Hawaii Telescope have identified a body that is very probably a planet wandering through space without a parent star. This is the most exciting free-floating planet candidate so far and the closest such object to the Solar System at a distance of about 100 light-years. Its comparative proximity, and the absence of a bright star very close to it, has allowed the team to study its atmosphere in great detail. This object also gives astronomers a preview of the exoplanets that future instruments aim to image around stars other than the Sun.

Free-floating planets are planetary-mass objects that roam through space without any ties to a star. Possible examples of such objects have been found before [1], but without knowing their ages, it was not possible for astronomers to know whether they were really planets or brown dwarfs — “failed” stars that lack the bulk to trigger the reactions that make stars shine.

But astronomers have now discovered an object, labelled CFBDSIR2149 [2], that seems to be part of a nearby stream of young stars known as the AB Doradus Moving Group. The researchers found the object in observations from the Canada-France-Hawaii Telescope and harnessed the power of ESO’s Very Large Telescope to examine its properties [3].

The AB Doradus Moving Group is the closest such group to the Solar System. Its stars drift through space together and are thought to have formed at the same time. If the object is associated with this moving group — and hence it is a young object — it is possible to deduce much more about it, including its temperature, mass, and what its atmosphere is made of [4]. There remains a small probability that the association with the moving group is by chance.

The link between the new object and the moving group is the vital clue that allows astronomers to find the age of the newly discovered object [5]. This is the first isolated planetary mass object ever identified in a moving group, and the association with this group makes it the most interesting free-floating planet candidate identified so far. “

http://www.eso.org/public/news/eso1245/

While scientists have found objects they believe might be sunless planets in the past, they couldn’t say for certain whether such celestial objects were planets or brown dwarves (which are effectively failed stars). CFBDSIR2149 is the most conclusive such object yet, since it isn’t located anywhere near a bright star as far as the researchers can tell.

According to the researchers, this object is quite massive—it has 4 to 7 times the mass of Jupiter—and at 430 degrees Celsius (about 806 degrees Fahrenheit), it’s very warm (the ESO didn’t explain why CFBDSIR2149 may be so toasty, though). Also, they say, this maybe-planet is young in astronomical terms, at between 50 and 120 million years of age.’(techhive.com)

Rogue Alien Planet Found With No Star! Nibiru, Planet X? 2012 HD

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Planet with Four Suns Images Videos

In Astrophysics, India on October 17, 2012 at 16:13

 

'Planet with Four Suns'.jpg

Planet with Four Suns,

 

A planet has been discovered orbiting in a four-star system — and no, that doesn’t mean the accommodations and conditions are excellent. It literally means four stars, where a planet is orbiting a binary star system that in turn is orbited by a second distant pair of stars. This is the first system like this that has ever been found, and its discovery demonstrates the power of citizen scientists, as it was found by a joint effort of amateurs participating on the Planet Hunters website under the guidance of professional astronomers.

This is might be an extremely rare planetary setup, astronomer Meg Schwamb from Yale says, as only six planets are currently known to orbit two stars, and none of these are orbited by other stellar companions. Astronomers are calling the newly found world a ‘circumbinary’ planet.

Circumbinary planets are the extremes of planet formation,” said Schwamb, Planet Hunters scientist and lead author of a paper about the system presented Oct. 15 at the annual meeting of the Division for Planetary Sciences of the American Astronomical Society in Reno, Nevada. “The discovery of these systems is forcing us to go back to the drawing board to understand how such planets can assemble and evolve in these dynamically challenging environment.

 

-tatooine-planet-system.jpg'

Four Suns Planet.

http://www.planethunters.org/

 

 

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Venus and the Pleiades Shine Brightly in the Sky

In Astrophysics, images, Interesting and funny on April 4, 2012 at 13:01

Venus shining along with Pleiades

Astrophotographer David A. Harvey captured this view of sparkling Venus near the Pleiades star cluster in the skies above Tucson, Ariz., on Monday night

 

On Tuesday night, Venus is shining near the well-known Pleiades star cluster in western skies.

Many astronomy books refer to Venus as Earth’s “twin sister,” since the two planets have nearly the same size and mass. In terms of diameter, Venus is about 300 miles (483 kilometers) smaller than Earth, and the gravity at its surface is 85 percent that of the Earth’s surface.

But that’s where the similarities end.

The atmosphere of Venus is very thick and far greater in density than ours. Most of Venus’ atmosphere is carbon dioxide, along with surface temperatures that are extremely hot; on the order of 860 degrees Fahrenheit (460 degrees Celsius). This high temperature is caused by the trapping of radiation by the lower atmosphere of the planet — a sort of runaway greenhouse effect.

Earth’s sister meets the Seven Sisters
While our “sister world” Venus has attracted a lot of attention from its recent displays with Jupiter and a lovely crescent moon, on Tuesday night it’s having a rendezvous with another noteworthy celestial landmark, popularly known as the “Seven Sisters” or the Pleiades.

http://www.msnbc.msn.com/id/46907441/ns/technology_and_science-space/#.T3vumfAtgkk

Rare Astronomical Sight for a few Weeks From Now.

In Astrophysics on May 14, 2011 at 20:26

Six planets and the waning crescent moon arrayed in the dawn sky on Saturday April 30, as seen from Los Angeles, California.

Beginning today and lasting for a few weeks, Mercury, Venus, Jupiter and Mars will be visible in the early morning sky, aligned roughly along the ecliptic — or the path the sun travels throughout the day. Uranus and Neptune, much fainter but there all the same, should be visible through binoculars. What gives the end-of-the-worlders shivers is that just such a configuration is supposed to occur on Dec. 21, 2012, and contribute in some unspecified way to the demolition of the planet. But what makes that especially nonsensical — apart from the fact that it’s, you know, nonsense — is that astronomers say no remotely similar alignment will occur next year……..

New Rogue Planet Around the Sun?

That’s just close enough to the truth to be dangerous, something that John Matese, co-author of the Icarus paper, admits — sort of. “What we’re really saying,” he explains, “is that there’s suggestive evidence there might be something out there.” And if a new planet exists — something Matese is emphatically not claiming at this point — then the Wide-field Infrared Survey Explorer (WISE) satellite should already have an image of it stored somewhere in its enormous database.

http://www.time.com/time/health/article/0,8599,2049641,00.html#ixzz1ML2SWZpT

 http://www.time.com/time/health/article/0,8599,2070503,00.html#ixzz1ML1W6f5x

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