Jack Accounts: October 2012

Monday 29 October 2012

Unblock and Access Youtube from Anywhere of the World

Hi Guys I am going to share a site which allows surfing youtube,Facebook,twitter and many other sites anonymously.so you can check out all these sites when country or host country has restricted you.

Friday 26 October 2012

Shahid Khan Afridi and Aamir Khan meeting in Holy City Meeca

Shahid Khan Afridi and Aamir Khan meeting in Holy City Meeca before the Hajj Prayers.

Thursday 25 October 2012

Katrina Kaif Childhood Pictures

Tuesday 16 October 2012

These three boys were sitting in the bus shelter in Suffolk Park which is an area found just outside Byron Bay. The posters indicate just how prolific entertainment is in the area, and the boys show the fashion of the time. I saw the middle boy sitting by himself and after driving away and deciding to come back the other two boys had arrived. Byron Bay locals often dislike the presence of all the tourists, and older boys have been known to be involved in altercations on the main street at night.

Artist's Rendering Of Kepler's Target Region In The Milky Way (Close Up)

An artists rendering of what our galaxy might look as viewed from outside our Galaxy. Our sun is about 25,000 light years from the center of the galaxy. The cone illustrates the neighborhood of our galaxy that the Kepler Mission will search to find habitable planets. Credit: Jon Lomberg.

Planet Kepler 10B Orbiting its Host Star

Kepler-10b orbits one of the 150,000 stars that the spacecraft is monitoring between the constellations of Cygnus and Lyra. We aim our mosaic of 42 detectors there, under the swan’s wing, just above the plane of the Milky Way galaxy. The star itself is very similar to our own sun in temperature, mass and size, but older with an age of over 8 billion years, compared to the 4-and-1/2 billion years of our own sun. It’s a quiet star, slowly spinning with a weak magnetic field and few of the sun spots that characterize our own sun. The star’s about 560 light years from our solar system and one of the brighter stars that Kepler is monitoring. It was the first we identified as potentially harboring a very small transiting planet. The transits of the planet were first seen in July of 2009.

The diameter of Kepler-10b is only about 1.4 times the diameter of Earth and it's mass is about 4.5 times that of Earth. It is the best example of a rocky planet to date.

Credit: NASA/Kepler Mission/Dana Berry

An Imagined Canyon on Planet Kepler 10-b

The daytime temperature’s expected to be more than 2,500 degrees Fahrenheit, hotter than lava flows here on Earth, hot enough to melt iron! Many years ago, before Kepler launched, members of what became the Kepler team built a robotic telescope at Lick Observatory to learn to do transit photometry--detecting drops in brightness of stars when planets pass in front of them. We called it the “Vulcan Telescope,” named after the hypothetical planet that scientists in the 1800’s thought might exist between the Sun and Mercury. A planet that might explain the small deviations in Mercury’s orbit that were later explained with Einstein’s theory of general relativity.

Vulcan is the god of fire in Roman mythology, a name befitting of a world so close to the Sun. The artist’s rendering of Kepler-10b is reminiscent of that hypothetical planet Vulcan. The Kepler team came full circle in its quest. We know that we’ve only begun to imagine the possibilities.
Credit: NASA/Kepler Mission/Dana Berry

Planet Kepler 10-B in Orbit

Planet Kepler-10b is orbiting it star about 20 times closer to its star than Mercury is to our own Sun. It takes less than one Earth day to orbit its star! The daytime temperature’s expected to be more than 2,500 degrees Fahrenheit, hotter than lava flows here on Earth. It is the smallest exoplanet (a planet located outside our solar system) discovered to date. All of Kepler’s best capabilities have converged to yield the first solid evidence of a solid planet orbiting a star other than our Sun.Knowledge of the planet is only as good as the knowledge of the star it orbits. Scientists of the Kepler Asteroseismic Science Consortium (KASC) were able to detect high frequency variations in the star’s brightness generated by stellar oscillations, or “starquakes.” Data arising from light waves that travel within the interior of the star lead to better understanding of the star, just as earthquakes are used to learn about the interior structure of Earth. As a result of this analysis, Kepler-10 is one of the most well . characterized planet-hosting stars in the universe next to the Sun. This analysis also allowed scientists to pin down the properties of Kepler-10b. It is unequivocally a rocky planet, with a surface you could stand on, a mass 4.6 times that of Earth, a diameter 1.4 times that of Earth, and an average density of 8.8 grams per cubic centimeter -- similar to that of an iron dumbbell.

Credit: NASA/Kepler Mission/Dana Berry

Kepler 10b Planet Comparison

here is a comparison of Kepler 10b Planet with other planets.Temperature and Size of different planets from our solars system and kepler system are compared.

Kepler-10 Stellar Family Portrait

This artist's conception depicts the Kepler-10 star system, located about 560 light-years away near the Cygnus and Lyra constellations. Kepler has discovered two planets around this star. Kepler-10b is, to date, the smallest known rocky exoplanet, or planet outside our solar system (dark spot against yellow sun). This planet, which has a radius of 1.4 times that of Earth's, whips around its star every .8 days. Its discovery was announced in Jan. 2011. Now, in May 2011, the Kepler team is announcing another member of the Kepler-10 family, called Kepler-10c (larger foreground object). It's bigger than Kepler-10b with a radius of 2.2 times that of Earth's, and it orbits the star every 45 days. Both planets would be blistering hot worlds.

Kepler-10c was first identified by Kepler, and later validated using a combination of a computer simulation technique called "Blender," and NASA's Spitzer Space Telescope. Both of these methods are powerful ways to validate the Kepler planets that are too small and faraway for ground-based telescopes to confirm using the radial-velocity technique. The Kepler team says that a large fraction of their discoveries will be validated with both of these methods.

In the case of Kepler-10c, scientists can be 99.998 percent sure that the signal they detected is from an orbiting planet. Part of this confidence comes from the fact thatSpitzer, an infrared observatory, saw a signal similar to what Kepler detected in visible light. If the signal were coming from something other than an orbiting planet -- for example an indistinguishable background pair of orbiting stars -- then scientists would expect to see different signals in visible and infrared light.

Image credit: NASA/Ames/JPL-Caltech

Kepler 11 Solar System Comparison

This artist’s conception shows the Kepler-11 planetary system and our solar system from a tilted perspective to demonstrate that the orbits of each lie on similar planes.
Image credit: NASA/Tim Pyle

Kepler 11 Introduction

Kepler-11 is a sun-like star around which six planets orbit. At times, two or more planets pass in front of the star at once, as shown in this artist's conception of a simultaneous transit of three planets observed by NASA's Kepler spacecraft on Aug. 26, 2010.
Image credit: NASA/Tim Pyle

Where the Sun Sets Twice

NASA's Kepler mission has discovered a world where two suns set over the horizon instead of just one. The planet, called Kepler-16b, is the most "Tatooine-like" planet yet found in our galaxy and is depicted here in this artist's concept with its two stars. Tatooine is the name of Luke Skywalker's home world in the science fiction movie Star Wars. In this case, the planet is not thought to be habitable. It is a cold world, with a gaseous surface, but like Tatooine, it circles two stars. The largest of the two stars, a K dwarf, is about 69 percent the mass of our sun, and the smallest, a red dwarf, is about 20 percent the sun's mass.

Most of what we know about the size of stars comes from pairs of stars that are oriented toward Earth in such a way that they are seen to eclipse each other. These star pairs are called eclipsing binaries. In addition, virtually all that we know about the size of planets around other stars comes from their transits across their stars. The Kepler-16 system combines the best of both worlds with planetary transits across an eclipsing binary system. This makes Kepler-16b one of the best-measured planets outside our solar system.

Kepler-16 orbits a slowly rotating K-dwarf that is, nevertheless, very active with numerous star spots. Its other parent star is a small red dwarf. The planetary orbital plane is aligned within half a degree of the stellar binary orbital plane. All these features combine to make Kepler-16 of major interest to studies of planet formation as well as astrophysics.Credit: NASA/JPL-Caltech/R. Hurt

In the Light of Two Suns

This artist's concept illustrates Kepler-16b, the first planet known to definitively orbit two stars -- what's called a circumbinary planet. The planet, which can be seen in the foreground, was discovered by NASA's Kepler mission.

The two orbiting stars regularly eclipse each other, as seen from our point of view on Earth. The planet also eclipses, or transits, each star, and Kepler data from these planetary transits allowed the size, density and mass of the planet to be extremely well determined. The fact that the orbits of the stars and the planet align within a degree of each other indicate that the planet formed within the same circumbinary disk that the stars formed within, rather than being captured later by the two stars.

Credit: NASA/JPL-Caltech/T. Pyle

Closer to Finding New Earth

Closer to Finding New Earth

This artist's conception illustrates Kepler-22b, a planet known to comfortably circle in the habitable zone of a sun-like star. It is the first planet that NASA's Kepler mission has confirmed to orbit in a star's habitable zone -- the region around a star where liquid water, a requirement for life on Earth, could persist. The planet is 2.4 times the size of Earth, making it the smallest yet found to orbit in the middle of the habitable zone of a star like our sun.

Scientists do not yet know if the planet has a predominantly rocky, gaseous or liquid composition. It's possible that the world would have clouds in its atmosphere, as depicted here in the artist's interpretation.

Image credit: NASA/Ames/JPL-Caltech

Kepler Planet Sizes

Comparative sizes of Kepler planets, through Kepler-22b.

Credit: NASA/Kepler mission/Wendy Stenzel

Bird's Eye View of the Kepler-16 System

A comparison graphic showing the Kepler-16 system with the scale of the inner planets of our own solar system.

Kepler-22b -- Comfortably Circling within the Habitable Zone

This diagram compares our own solar system to Kepler-22, a star system containing the first "habitable zone" planet discovered by NASA's Kepler mission. The habitable zone is the sweet spot around a star where temperatures are right for water to exist in its liquid form. Liquid water is essential for life on Earth.
than our sun, so its habitable zone is slightly closer in. The diagram shows an artist's rendering of the planet comfortably orbiting within the habitable zone, similar to where Earth circles the sun. Kepler-22b has a yearly orbit of 289 days. The planet is the smallest known to orbit in the middle of the habitable zone of a sun-like star. It's about 2.4 times the size of Earth.

Image credit: NASA/Ames/JPL-Caltech
Kepler-22's star is a bit smaller

Artist's Concept of Kepler-20f

Artist's Concept of Kepler-20e

NASA's Kepler mission has discovered the first Earth-size planets orbiting a sun-like star outside our solar system. The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in the so-called habitable zone where liquid water could exist on a planet's surface, but they are the smallest exoplanets ever confirmed around a star like our sun.

Kepler-20e is the first planet smaller than the Earth discovered to orbit a star other than the sun. A year on Kepler-20e only lasts 6 days, as it is much closer to its host star than the Earth is to the sun. The temperature at the surface of the planet, around 1400 degrees Fahrenheit, is much to hot to support life, as we know it.

Kepler-20e is likely to be entirely rocky and without an atmosphere. The planet is tidally locked, always showing the same side to its host star, as the moon to the Earth, and could have large temperature differences between its permanent night and day sides.

Astronomers think that the planet is likely to be geologically active, due to its own formation process and the strong gravitational interactions with its host star. In this artistic depiction, the planet is represented with active volcanoes on both the night and day sides.

For more information about the Kepler mission and to view the digital press kit, visit:

http://www.nasa.gov/kepler

Image credit: NASA/Ames/JPL-Caltech

Earth-class Planets Line Up

This chart compares the first Earth-size planets found around a sun-like star to planets in our own solar system, Earth and Venus. NASA's Kepler mission discovered the new found planets, called Kepler-20e and Kepler-20f. Kepler-20e is slightly smaller than Venus with a radius .87 times that of Earth. Kepler-20f is a bit larger than Earth at 1.03 times the radius of Earth. Venus is very similar in size to Earth, with a radius of .95 times that our planet. Prior to this discovery, the smallest known planet orbiting a sun-like star was Kepler-10b with a radius of 1.42 that of Earth, which translates to 2.9 times the volume.

Both Kepler-20e and Kepler-20f circle in close to their star, called Kepler-20, with orbital periods of 6.1 and 19.6 days, respectively. Astronomers say the two little planets are rocky like Earth but with scorching temperatures.

There are three other larger, likely gaseous planets also know to circlethe same star, known as Kepler-20b, Kepler-20c and Kepler-20d.

For more information about the Kepler mission and to view the digital press kit, visit:

http://www.nasa.gov/kepler

Image credit: NASA/Ames/JPL-Caltec

'Honey I Shrunk the Planetary System'

This artist's conception compares the KOI-961 planetary system to Jupiter and the largest four of its many moons. The KOI-961 planetary system hosts the three smallest planets known to orbit a star beyond our sun (called KOI-961.01, KOI-961.02 and KOI-961.03). The smallest of these planets, KOI-961.03, is about the same size as Mars. All three planets take less than two days to whip around their star.The planets were discovered using data from NASA's Kepler mission and ground-based telescopes. The KOI-961 star is a tiny "red dwarf," just one-sixth the size of our sun. This planetary system is the most compact detected to date, with a scale closer to Jupiter and its moons than another star system.

The planet and moon orbits are drawn to the same scale. The relative sizes of the stars, planets and moons have been increased for visibility.

Image credit: Caltech

Sizing Up Exoplanets

This chart compares the smallest known exoplanets, or planets orbiting outside the solar system, to our own planets Mars and Earth. Astronomers using data from NASA's Kepler mission and ground-based telescopes recently discovered the three smallest exoplanets known to circle another star, called KOI-961.01, KOI-961.02 and KOI-961.03. The smallest of these, KOI-961.03, is about the size of Mars with a radius of only 0.57 times that of Earth. Not long ago, in Dec. of 2011, the Kepler team announced the discovery of Kepler-20e and Kepler-20f -- the first Earth-size planets ever found outside the solar system. All five of these small exoplanets have toasty orbits close to their stars, and do not lie in the more temperate habitable zone.

The ground-based observations contributing to the KOI-961 discoveries were made with the Palomar Observatory, near San Diego, Calif., and the W.M. Keck Observatory atop Mauna Kea in Hawaii.Image credit: NASA/JPL-Caltech

Mini Planetary System

This artist's concept depicts an itsy bitsy planetary system -- so compact, in fact, that it's more like Jupiter and its moons than a star and its planets. Astronomers using data from NASA's Kepler mission and ground-based telescopes recently confirmed that the system, called KOI-961, hosts the three smallest exoplanets known so far to orbit a star other than our sun. An exoplanet is a planet that resides outside of our solar system.

The star, which is located about 130 light-years away in the Cygnus constellation, is what's called a red dwarf. It's one-sixth the size of the sun, or just 70 percent bigger than Jupiter. The star is also cooler than our sun, and gives off more red light than yellow.

The smallest of the three planets, called KOI-961.03, is actually located the farthest from the star, and is pictured in the foreground. This planet is about the same size as Mars, with a radius only 0.57 times that of Earth. The next planet to the upper right is KOI-961.01, which is 0.78 times the radius of Earth. The planet closest to the star is KOI-961.02, with a radius 0.73 times the Earth's.

All three planets whip around the star in less than two days, with the closest planet taking less than half a day. Their close proximity to the star also means they are scorching hot, with temperatures ranging from 350 to 836 degrees Fahrenheit (176 to 447 degrees Celsius). The star's habitable zone, or the region where liquid water could exist, is located far beyond the planets.The ground-based observations contributing to these discoveries were made with the Palomar Observatory, near San Diego, Calif., and the W.M. Keck Observatory atop Mauna Kea in Hawaii.

Image credit: NASA/JPL-Caltech

The Kepler-35 System

An artist's rendition of the Kepler-35 planetary system, in which a Saturn-size planet orbits a pair of stars. Kepler-35b orbits its smaller and cooler host stars than our sun every 131 days, and the stellar pair orbits each other every 21 days.

Image credit: Lynette Cook / extrasolar.spaceart.org

Kepler's Transiting Planet Systems

The artist's rendering depicts the multiple planet systems discovered by NASA's Kepler mission. Out of hundreds of candidate planetary systems, scientists had previously verified six systems with multiple transiting planets (denoted here in red). Now, Kepler observations have verified planets (shown here in green) in 11 new planetary systems. Many of these systems contain additional planet candidates that are yet to be verified (shown here in dark purple). For reference, the eight planets of the solar system are shown in blue.

Credit: NASA Ames/Jason Steffen, Fermilab Center for Particle Astrophysics

Kepler Mission Planet Candidates, a Family Portrait

Using NASA's planet-hunting Kepler spacecraft, astronomers have discovered 2,326 candidate planets orbiting other suns since the Kepler mission's search for Earth-like worlds began in 2009. To find them, Kepler monitors a rich star field to identify planetary transits by the slight dimming of starlight caused by a planet crossing the face of its parent star. In this remarkable illustration, "Kepler's Planet Candidates," all of Kepler's planet candidates are shown in transit with their parent stars ordered by size from top left to bottom right. Simulated stellar disks and the silhouettes of transiting planets are all shown at the same relative scale, with saturated star colors. Of course, some stars show more than one planet in transit, but you may have to examine the picture at high resolution to spot them all. The star's color represents its temperature as shown in the lower scale, and the letter (A,F,G,K,M) are how astronomers classify star types. Look carefully: some systems have multiple planets. For reference, Jupiter is shown transiting the sun.

Credit: Jason Rowe, NASA Ames Research Center and SETI Institute

Kepler Planet Candidates by Size, Feb. 27, 2012

The histogram summarizes the findings in the Feb. 27, 2012 Kepler Planet Candidate catalog release. The catalog contains 2,321 planet candidates identified during the first 16 months of observation conducted May 2009 to September 2010. Of the 46 planet candidates found in the habitable zone, the region in the planetary system where liquid water could exist, ten of these candidates are near-Earth-size.

Amateur astronomers discover new planet with four suns

In this family portrait of the PH1 planetary system, the newly discovered planet is depicted in this artist's rendition transiting the larger of the two eclipsing stars it orbits. Off in the distance, well beyond the planet orbit, resides a sec (Haven Giguere/Yale)

Amateur astronomers have helped discover an alien planet with two suns and a twinkling twist: The entire twin-sun setup, a real-life version of Tatooine from "Star Wars," is orbited by two more stars — a solar system that is the first of its kind known.

The alien planet, called PH1, is a gas giant planet slightly bigger than Neptune. Its discovery in the midst of a strange, four-star planetary system is the first confirmed world discovered as part of the Yale University-led Planet Hunters project, in which armchair astronomers work with professional scientists to find evidence of new worlds in the bountiful data collected by NASA's Kepler space telescope.
"Planet Hunters is a symbiotic project, pairing the discovery power of the people with follow-up by a team of astronomers," said Debra Fischer, a professor of astronomy at Yale and planet expert who helped launch Planet Hunters in 2010, in a statement. "This unique system might have been entirely missed if not for the sharp eyes of the public."
Since its March 2009 launch, Kepler has found evidence of more than 2,300 candidate alien worlds. [Gallery: More Alien Planets with Twin Suns

Finding a strange, new world

Since its initial discovery via Planet Hunters, the existence of PH1 has been confirmed by a team of professional astronomers, who will present their work today (Oct. 15) at the annual meeting of the Division for Planetary Sciences of the American Astronomical Society in Reno, Nev.
With a radius about 6.2 times that of Earth's, PH1 is a smidge bigger than Neptune. The gassy planet spends 138 days completing a single orbit around its two parent stars, which have masses about 1.5 and 0.41 times that of the sun. The stars circle each other once every 20 days.

'It's a great honor to be a Planet Hunter, citizen scientist ... [and to] make a real contribution to science.' Robert Gagliano, Planet Hunter

The two other stars orbiting the PH1's twin suns are about 1,000 astronomical units (AU) from the parent stars. (One AU is about the distance between the Earth and sun, about 93 million miles or 150 million kilometers.)
If you're hoping to catch the quadruple sunset, this may not be your best bet. The researchers estimate PH1's temperature would range from a minimum of about 484 degrees Fahrenheit (524 Kelvin, or 251 degrees Celsius) and a maximum of 644 degrees F (613 Kelvin, or 340 degrees C), too hot to be in the habitable zone.
"Although PH1 is a gas giant planet, even if there is a possibility of rocky moons orbiting the body, their surfaces would be too hot for liquid water to exist," researcher Meg Schwamb of Yale University and colleagues write in a draft of their research article.

A planet with two suns

Until now, scientists had identified just six planets orbiting two parent stars, called circumbinary planets, and none of these have stellar companions orbiting them. Until their discovery, circumbinary planets were once the realm of science fiction with Tatooine, the fictional homeworld of Luke Skywalker in "Star Wars," among the most famous.
"Circumbinary planets are the extremes of planet formation," Schwamb said in a statement. "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 environments."
The Planet Hunter volunteers, Kian Jek of San Francisco, Calif., and Robert Gagliano of Cottonwood, Ariz., spotted PH1 using the transit method, noticing faint dips in light as the plant passed in front of, or transited, its parent stars.
Gagliano said he was "absolutely ecstatic" about the finding. "It's a great honor to be a Planet Hunter, citizen scientist, and work hand in hand with professional astronomers, making a real contribution to science," he said.
Jek, too, expressed his amazement.
"It still continues to astonish me how we can detect, let alone glean so much information, about another planet thousands of light-years away just by studying the light from its parent star," he said in a statement.
Schwamb led the team of professional astronomers who confirmed the discovery and characterized the planet, following observations from the Keck telescopes on Mauna Kea, Hawaii.
The research was supported by NASA and the National Science Foundation Astronomy and Astrophysics Postdoctoral Fellowship.

For more information on the Planet Hunters project, visit: http://www.planethunters.org

PH1 Amateur astronomers discover new planet with four suns

'It's a great honor to be a Planet Hunter, citizen scientist ... [and to] make a real contribution to science.' Robert Gagliano, Planet Hunter

Four Star Planet PH1 Discovered

Four Star Planet

An artist's illustration of PH1, a planet discovered by volunteers from the Planet Hunters citizen science project. PH1, shown in the foreground, is the first reported case of a planet orbiting a double-star that, in turn, is orbited by a second distant pair of stars. The phenomenon is called a circumbinary planet in a four-star system.

A bit larger than Neptune and thought to be a gas giant, PH1 orbits its host stars every 137 days. Beyond the planet's orbit approximately 900 times the distance between the sun and Earth, a second pair of stars orbits the planetary system.

Main Article : Nasa