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Most extensive planetary system discovered: Similar to our own solar system

Most extensive planetary system discovered: Similar to our own solar system | All about the Solar System. | Scoop.it

A team of astrophysicists at the German Aerospace Center (Deutsches Zentrum für Luft und- Raumfahrt; DLR), together with German and European colleagues, has discovered the most extensive planetary system to date. Seven planets circle the star KOI-351 – more than in other known planetary systems.

 

They are arranged in a similar fashion to the eight planets in the Solar System, with small rocky planets close to the parent star and gas giant planets at greater distances. Although the planetary system around KOI-351 is packed together more tightly, it provides an interesting comparison to our cosmic home.

 

Astrophysicists around the world have been searching for a star system similar to our own for a long time. Now, the team led by Juan Cabrera, an astrophysicist at the DLR Institute of Planetary Research in Berlin-Adlershof has taken a major step in this direction. Three of the seven planets in orbit around the star KOI-351 were discovered in recent years, and have periods of 331, 211 and 60 days, similar to those of Earth, Venus and Mercury.

 

The planets discovered by Cabrera and his team are even closer to the star and have orbital periods of 7, 9, 92 and 125 days. The outermost planet orbits the star at a distance of about 150 million kilometres, or roughly one Astronomical Unit (AU), so the entire planetary system is compressed into a space corresponding to the distance between Earth and the Sun.

 

In the article published in the Astrophysical Journal, Juan Cabrera and his colleagues emphasise the similarities between KOI-351 and the Solar System: “No other planetary system shows such a similar ‘architecture’ to that of our cosmic home as does the planetary system around KOI-351,” says Cabrera. “Just as in the Solar System, rocky planets with roughly the size of Earth are found close to the star, while, ‘gas giants’ similar to Jupiter and Saturn are found as you move away from the star.”

 

“We cannot stress just how important this discovery is. It is a big step in the search for a ‘twin’ to the Solar System, and thus also in finding a second Earth,” said Cabrera. Heike Rauer, head of the Extrasolar Planets and Atmospheres working group at the DLR Institute of Planetary Research and professor at the Centre for Astronomy and Astrophysics at the University of Berlin, adds: “The discovery of this complex planetary system helps us to better understand the processes that give rise to such planetary systems.” Tilman Spohn, Head of the DLR Institute of Planetary Research states that: “DLR is proud to have made a significant contribution to the discovery of new planetary systems.”

 

The development of a special computer algorithm enabled Juan Cabrera and his team to detect the four new planets around KOI-351. The DLR astrophysicist was able to filter out the light curves that reveal the ‘transit’ of a planet across its parent star from the Kepler measurements. A transit is inferred from the small, periodic dimming of the star’s light as the planet crosses the star’s disc. This technological development is likely to be crucial in the search for similar multiple systems using large data sets from future space telescopes. The discovery was confirmed shortly afterwards by a US group led by Joseph R. Schmitt of Yale University, by visual inspection of the light curves recorded by Kepler.

 

KOI is the abbreviation for ‘Kepler Object of Interest’, which means the star was observed by NASA’s Kepler space telescope, between 2008 and 2013, and classified as a candidate for the existence of exoplanets. At present, KOI-351 is the star with the most extrasolar planets, or exoplanets for short. The star is 2500 light years away from Earth.

 


Via Dr. Stefan Gruenwald
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Hubble Discovers Water Plumes Over Europa : DNews

Hubble Discovers Water Plumes Over Europa : DNews | All about the Solar System. | Scoop.it
Scientists using the Hubble Space Telescope have found plumes of water vapor shooting off the southern pole of Europa, an ice-covered moon of Jupiter that is believed to have an underground ocean.
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Astronomers discover solar system amazingly similar to our own - Geek

Astronomers discover solar system amazingly similar to our own - Geek | All about the Solar System. | Scoop.it
Geek
Astronomers discover solar system amazingly similar to our own
Geek
Astronomers have been finding exoplanets orbiting distant stars for years now, but rarely have they ever spotted a collection of planets arranged like our own solar system.
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India's Mars mission is a major step forward in exploring the solar system ... - Daily News & Analysis.

India's Mars mission is a major step forward in exploring the solar system ... - Daily News & Analysis. | All about the Solar System. | Scoop.it
Daily News & Analysis
India's Mars mission is a major step forward in exploring the solar system ...
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Scientists confirm existence of largest single volcano on Earth - Massive underwater volcano rivals biggest in solar system

Scientists confirm existence of largest single volcano on Earth - Massive underwater volcano rivals biggest in solar system | All about the Solar System. | Scoop.it

Now, scientists have confirmed that the northwest Pacific is home to a real-life giant of a different type: the largest single volcano yet documented on Earth.

Covering an area roughly equivalent to the British Isles or the State of New Mexico, Tamu Massif is nearly as big as the giant volcanoes of Mars, placing it among the largest in the solar system.


Via Hans Gruen
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A New View Of The Solar System

A New View Of The Solar System | All about the Solar System. | Scoop.it
Michael Benson has created God’s own view of the universe. To make the images on display in his upcoming book,

Via Official AndreasCY
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Official AndreasCY's curator insight, September 8, 2013 12:13 PM

These images are as close to the view from a passing spacecraft as most of us will ever come.

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A Planet Train - Learning for Kids

A planet train that steps through the planets of our solar system one by one in English. Take a ride on the planet train and learn the solar system today! So...
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Scientists claim that Voyager 1 left the Solar System last year | GizMag.com

Scientists claim that Voyager 1 left the Solar System last year | GizMag.com | All about the Solar System. | Scoop.it

Sometimes it seems as though the Voyager 1 space probe is like a dog that can’t decide if it wants to be inside or out. A team of scientists led by the University of Maryland claim that the Voyager 1 space probe, which is now 11 billion miles (18 billion km) from Earth left the Solar System’s boundary last year and is not, as NASA claims, still passing through a transition zone. The controversial theory is based on models of the solar magnetic field on the edge of the system and how it interacts with interstellar space.

 

The controversy arises from the structure of the Solar System where it meets interstellar space. Inside, where we are, is the heliosphere, which is the area of influence where the power of the Sun dominates local space. It’s well defined and scientists have a pretty good idea as to its shape and extent.

 

The tricky bit is the edge of the heliosphere, called the heliopause. This is the area where the influence of the Sun is reduced to almost nil and where interstellar space begins. The trouble is, very little is known about that area. Unfortunately, Voyager 1 has posed as many questions as it's answered. That’s because it’s the first and, so far, only probe to reach the edge of the Solar System. It’s one datum point in a very large volume of space.

 

Click headline to read more and view pix--


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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(EN) - SSD Glossary: Solar System Dynamics | nasa.gov

(EN) - SSD Glossary: Solar System Dynamics | nasa.gov | All about the Solar System. | Scoop.it

"Glossary of selected terms used on this site:

 

Absolute Magnitude (H)

Albedo
Argument of Perihelion
Astrometry
Astronomical Unit (au)
Barycenter
Declination
Eccentricity
Ecliptic
Ephemeris
Geocentric
Geodetic
GM
Heliocentric
Inclination
Lagrange Points (L1,L2)
Laplace Plane
Longitude of Perihelion
Longitude of the Ascending Node
Mean Anomaly
Mean Longitude
Mean Motion
Meridian
Meteor
Meteoroid
Minor Planet
Nutation
Obliquity
Orbit
Orbital Period
Perihelion Distance
Phase Angle
Right Ascension
Semi-major Axis
Time of Perihelion Passage
Topocentric
Vernal Equinox"


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Are We Alone, Really? : DNews

Are We Alone, Really?  : DNews | All about the Solar System. | Scoop.it
Do you wonder if we're alone in the universe? We present 10 places out there where we can look for signs of intelligent life.

 

The race to find intelligent life, or any life at all, beyond Earth has been a heated space scramble for decades. Even though no concrete evidence of extraterrestrials has ever been confirmed, it seems like every space probe ever launched and scheduled to launch has a "FIND LIFE" stamped in its mission.

That isn't to say we don't have our theories for where life might be hiding. Here, we take a look at some places we’ve explored, and some we haven't.

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Support #Astronaut Abby's Space Project to Inspire Future Generations!

Support #Astronaut Abby's Space Project to Inspire Future Generations! | All about the Solar System. | Scoop.it
Latest Updates 05/18/13: We did it! Thank you to everyone who joined the #SoyuzAdventure crew! Now for the fun! The adventure has begun! Join me on Facebook, Twitter, Google+ and my blog to stay updated!
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Jewel of the Solar System.

Jewel of the Solar System. | All about the Solar System. | Scoop.it

A swing high above Saturn by NASA's Cassini spacecraft revealed this stately view of the golden-hued planet and its main rings. The view is in natural color, as human eyes would have seen it. This mosaic was made from 36 images in three color filters obtained by Cassini's imaging science subsystem on Oct. 10, 2013.


Via Michele Diodati
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All about the Solar System.

All about the Solar System. | All about the Solar System. | Scoop.it

All about the Solar System. Rescooped by Tyr Pandora from Liberty Revolution.

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Scientists Find A Water-Rich Planet Outside Our Solar System

 

Scientists confirm existence of largest single volcano on Earth – Massive underwater volcano rivals biggest in solar system
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Scientists Find A Water-Rich Planet Outside Our Solar System

Scientists Find A Water-Rich Planet Outside Our Solar System | All about the Solar System. | Scoop.it
Japanese scientists have determined that a planet outside our solar system that most likely has a water-rich atmosphere.

Via Maria Nunzia @Varvera
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Our Solar System in CSS3 | neography

Our Solar System in CSS3 | neography | All about the Solar System. | Scoop.it

This is an attempt to recre­ate our solar sys­tem using CSS3 fea­tures such as border-radius, trans­forms and anim­a­tions. The res­ult is sur­pris­ing and quite interesting.


Via Serine Dallakyan
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Rescooped by Tyr Pandora from MOVIES VIDEOS & PICS
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Solar System Scope

Solar System Scope | All about the Solar System. | Scoop.it
Online Solar System Simulation

Via Troy Mccomas (troy48)
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Solar system caught in an interstellar tempest - space - 05 September 2013 - New Scientist

Solar system caught in an interstellar tempest - space - 05 September 2013 - New Scientist | All about the Solar System. | Scoop.it
The gas cloud we've been zipping through on the edge of the Milky Way is either more turbulent than imagined or we're poised to pop right out of it

Via José Gonçalves
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Shifting Winds May Spark Dramatic Changes In Solar System

Shifting Winds May Spark Dramatic Changes In Solar System | All about the Solar System. | Scoop.it
As Earth and the other planets orbit the sun, the solar system itself travels through space. Its slow journey is taking it through a wispy expanse of gas called the Local Interstellar Cloud.
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