1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Exoplanets

Discussion in 'Science & Technology' started by Drone, Sep 10, 2011.

  1. Inceptor

    Inceptor

    Joined:
    Sep 21, 2011
    Messages:
    497 (0.53/day)
    Thanks Received:
    119
    All the planets orbiting Gliese 581 are so close to the star, because of its low mass, that they may all be tidally locked, or nearly so. I think that if any of them have moons, those moons aren't going to have more influence than the parent star.
  2. gopal

    gopal

    Joined:
    Jun 25, 2012
    Messages:
    1,027 (1.55/day)
    Thanks Received:
    121
    Location:
    Patna, Bihar, India, Asia, Earth, Terron System, M
    Well the kelper reminds me the nvidia kelper series is the planet is owned by nvidia?:D
  3. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Kepler was a famous German astronomer. I dunno maybe people at nvidia just wanted to show how "smart-ass" they are so they decided to choose this codename. Apparently maybe they even haven't ever heard about Kepler's laws of planetary motion. Whatever ...

    Some interesting news here:

    In that system the planets and the star are aligned with each other just like in our solar system. Unlike the hot-jupiter systems which are misaligned.

    It's awesome that far-off alien world looks like our solar system. :) Just like scientists say we may find clues in extrasolar planetary systems to help understand the puzzles of the solar system, and vice versa.

    More here:

    http://web.mit.edu/physics/news/spotlight/20120725_winn.html
  4. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Another newfound world.

    Space is a cool place :cool:

    The place is hot and it's hard to see it.

    http://news.yahoo.com/planet-found-smaller-earth-orbiting-distant-star-203543868--abc-news-tech.html
  5. AphexDreamer

    AphexDreamer

    Joined:
    Jun 17, 2007
    Messages:
    6,927 (2.77/day)
    Thanks Received:
    888
    Location:
    C:\Program Files (x86)\Aphexdreamer\
    We should send some organic material to Gliese 581g to try and see if we can seed life there.
  6. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    New multi-planet system has been found. It's called Kepler-47. It consists of two stars and two planets. The primary star is about the same mass as the Sun, and its companion is an M-dwarf star one-third its size. The inner planet is three times the size of Earth and orbits the binary star every 49.5 days, while the outer planet is 4.6 times the size of Earth with an orbit of 303.2 days.


    http://phys.org/news/2012-08-kepler-multi-planet-binary-star.html

    The outer planet is the first planet found to orbit a binary star within the "habitable zone," where liquid water could exist. However, the planet's size (about the same as Uranus) means that it is an icy giant, and not an abode for life.
  7. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Another Gliese planet has been found. It's a rock-water world covered with a dense cloud layer.

    [​IMG]

    It's called Gliese 163c and located 50 light years away in the Dorado constellation.

    This super-Earth planet is hot, plus it "baths" in stellar wind.

    http://phys.org/news/2012-08-hot-potential-habitable-exoplanet-gliese.html


    p.s. I posted info about other Gliese planet in this post:

    http://www.techpowerup.com/forums/showpost.php?p=2680256&postcount=23
    Last edited: Aug 31, 2012
  8. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Diamond planet - 55 Cancri e - has been found :eek: I bet every woman would love to live there, and it's not that far just 40 ly away :rolleyes: As always astronomers have used transit method to find the planet.

    Ok go back to diamonds ...

    :D

    http://phys.org/news/2012-10-nearby-super-earth-diamond-planet.html
    PopcornMachine says thanks.
  9. 3870x2

    3870x2

    Joined:
    Feb 26, 2008
    Messages:
    4,875 (2.17/day)
    Thanks Received:
    689
    Location:
    Joplin, Mo
    I wonder what the melting point of diamond is...

    EDIT:
    6422F

    There is a good chance that there is liquid diamond there.
  10. Depth

    Joined:
    Aug 7, 2009
    Messages:
    589 (0.34/day)
    Thanks Received:
    132
    "A radius twice Earth's, and a mass eight times greater, with 18 hours to a year"

    I wonder how it's shape is. Think it's formed like a diamond as well?

    [​IMG]


    Probably oval or shaped like a teardrop but it's a nice thought.
  11. de.das.dude

    de.das.dude Pro Indian Modder

    Joined:
    Jun 13, 2010
    Messages:
    7,411 (5.27/day)
    Thanks Received:
    1,909
    you sound like the church.
    Depth says thanks.
  12. 3870x2

    3870x2

    Joined:
    Feb 26, 2008
    Messages:
    4,875 (2.17/day)
    Thanks Received:
    689
    Location:
    Joplin, Mo
    I don't quite understand.

    An atheist would say this same statement.
    MT Alex says thanks.
  13. de.das.dude

    de.das.dude Pro Indian Modder

    Joined:
    Jun 13, 2010
    Messages:
    7,411 (5.27/day)
    Thanks Received:
    1,909
    lol. i meant the old church.
  14. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Astronomers think they've found another system. It's called KOI-500 and located 1100 light-years away in the constellation Lyra. They haven't validate the data yet.

    [​IMG]

    Scientists think that planets didn't form at their current locations but have 'migrated' into the ultra-compact configuration during the formation process.

    That's quite a crowded situation.

    http://phys.org/news/2012-10-extreme-solar-arent-planetary.html

    ____________________________________

    edit: A Transiting Circumbinary Planet in a Quadruple Star System (see the second part of this post) is now officially confirmed. YAY!

    [​IMG]

    As well as two Kepler planets which were confirmed in 2011.

    [​IMG]
    Last edited: Nov 2, 2012
  15. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Wow so many planets they find these days. In binary, triple and now even quadruple systems. Some crowded around a single star, others reside in more complex environments. It's amazing how technology steps further and further, and how amazingly sensitive it got. All those objects can't be seen but can be detected. We live in exciting times! Meh, if I only could rewind my life I'd definitely have been an astronomer .... *sigh*

    Ok ... some more news: :D

    [​IMG]

    This is the first planet with a mass similar to Earth ever found around a star like the Sun. Its orbit is very close to its star (it's orbiting Alpha Centauri B every 3.2 days) and it must be much too hot for life as we know it.

    So we have a planet in Alpha Centauri. It's so "close". Fascinating!

    Well done. Thumbs up!
    http://phys.org/news/2012-10-earth-sized-planet-solar.html
    _____________________

    ******************
    _____________________

    And even more news! Astronomers found a planet (now called PH1) in a system with four stars! Such planets are the extreme and called circumbinary planets. I've never heard that word before, but now I know :D It's amazing that volunteers using the Planethunters.org website and professional astronomers together found it. I hope they'll find more in the future.

    [​IMG]

    YO DAWG I HERD YOU LIKE BINARY STARS SO WE PUT BINARY SYSTEM IN BINARY SYSTEM :roll: But I digress.. :)

    It's astonishing that astronomers can glean so much information about another planet thousands of light years away just by studying the light from its parent star.

    http://phys.org/news/2012-10-armchair-astronomers-planet-quadruple-star.html
    PopcornMachine says thanks.
  16. Inceptor

    Inceptor

    Joined:
    Sep 21, 2011
    Messages:
    497 (0.53/day)
    Thanks Received:
    119
    The Alpha Centauri B b news is exciting... Well as exciting as planet hunting news could get, I suppose.
    There's no real, relatively immediate incentive to spend money on large telescopes, deep space probes, and 'deep space tech', in general, at the moment.
    I hope astronomers find more planets in the Alpha Centauri system.
  17. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Astronomers found a potentially habitable exoplanet, HD 40307 g :eek:
    There is a 50% chance that it'd be a rocky planet like Earth.

    Located ~42 light-years away in the southern constellation Pictor, it's not tidally locked and it's partying in water-friendly zone. :rockout:

    http://www.tech-stew.com/post/2012/...tentially-habitable-Super-Earth-HD40307g.aspx

    That planet is quite heavy and ain't too warm (the sixth planet from its star) ... Its host star HD 40307 is "quiet and old" and smaller than the Sun (0.75 Mass of the Sun).


    [​IMG]

    Astronomers need a direct imaging mission, because transit method doesn't give important details about this planet. I'd like to know about its atmosphere :D This six-planet system is quite interesting. :cool:
    PopcornMachine says thanks.
  18. PopcornMachine

    PopcornMachine

    Joined:
    Aug 17, 2009
    Messages:
    1,562 (0.92/day)
    Thanks Received:
    458
    Location:
    Los Angeles/Orange County CA
    Very cool stuff. :cool:

    But, 42? Could it be a coincidence? I think not. ;)

    Attached Files:

  19. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Shocking news! :eek: Astronomers found free-floating planet wandering through space. And finally we have a picture!

    [​IMG]

    The planet called CFBDSIR2149 is a faint blue dot at the centre of the picture.

    Rover Wanderer Nomad Vagabond :D

    It's way too young but hot and heavy isolated chick. The absence of a shining star in the vicinity of this planet enabled astronomers to study its atmosphere in great detail. Fascinating!

    http://phys.org/news/2012-11-astronomers-homeless-planet-space.html




    A lost starless rogue world :eek:

    In visible light the object is so cool that it would only shine dimly with a deep red colour when seen close-up.
    Last edited by a moderator: Nov 20, 2013
    PopcornMachine and qubit say thanks.
  20. qubit

    qubit Overclocked quantum bit

    Joined:
    Dec 6, 2007
    Messages:
    9,819 (4.22/day)
    Thanks Received:
    3,468
    Free floating planet - nice find. :toast:

    The only thing missing from that animation is the wooshing sound things make as they fly through space, like in all the sci-fi movies.
  21. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    [​IMG]

    The large number of multi-candidate systems being found by Kepler implies that a substantial fraction of exoplanets reside in flat multi-planet systems.

    Holy cow so many different planets. Just like they say: "It's no longer a question of will we find a true Earth analogue, but a question of when."
  22. McSteel

    McSteel

    Joined:
    Nov 19, 2012
    Messages:
    554 (1.07/day)
    Thanks Received:
    265
    I think we'll shift from "when" to "how many" pretty quick.
  23. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Video of the day:

    Zombie-planet Fomalhaut b



    Very dim with eccentric orbit
    Last edited by a moderator: Nov 20, 2013
  24. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    Strange Exoplanet HAT-P-7b with Backwards Orbit

    Sounds complicated. Inner planet HAT-P-7b orbits backwards around its star because there's other planet HAT-P-7c and a companion star HAT-P-7B.

    [​IMG]

    The planetary system around the star HAT-P-7 includes a companion star and two planets. These photos of the system were taken by the Subaru Telescope.
  25. Drone

    Drone

    Joined:
    Sep 1, 2010
    Messages:
    2,345 (1.77/day)
    Thanks Received:
    1,064
    Location:
    Hell
    NASA's Kepler Mission Discovers Tiny Planet System: Smallest Planet Yet Found Around a Star Similar to Our Sun

    [​IMG]

    Yet another solar system but now with tiniest planet and two companion planets.

    Hellish places.
    grunt_408 and PopcornMachine say thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page