Map of Stars within 50 light years


By Dan8267   Follow   Tue, 6 Mar 2012, 10:57pm   3,624 views   19 comments
Watch (0)   Share   Quote   Permalink   Like   Dislike  

http://www.atlasoftheuniverse.com/50lys.html

Viewing Comments 1-19 of 19     Last »     See most liked comments

  1. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    1   9:51am Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike (1)  

    I thought astronomers were crucified in the middle ages for NOT believing that Earth or our Sun for that matter, was NOT the center of the Universe. So here we are centuries later, and we're still the center of the Universe in spite of our selves.

    Interesting picture, thought I'm curious to know is the orbital path of the sun, and the relationship to other star's orbital path. How can we be in a spiral galaxy and yet remain static?

  2. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    2   10:18am Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    TPB says

    So here we are centuries later, and we're still the center of the Universe in spite of our selves.

    Not quite. The map shows stars in polar coordinates relative to the sun. It does not imply that the stars revolve around the sun. We accept that the stars revolve around the galactic center, which is indicated on the map.

  3. leo707


    Follow
    Befriend (12)
    11 threads
    4,088 comments
    Oakland, CA
    leo707's website

    3   10:52am Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    Nice map.

    Now we just need to figure out how to travel 50 light years.

  4. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    4   12:53pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    Dan8267 says

    ot quite. The map shows stars in polar coordinates relative to the sun. It does not imply that the stars revolve around the sun. We accept that the stars revolve around the galactic center, which is indicated on the map.

    I'm a "the whole picture" kinda guy. If all we only know "This" then, we have no idea what "That" is.

  5. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    5   2:10pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

  6. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    6   3:28pm Wed 7 Mar 2012   Share   Quote   Permalink   Like (1)   Dislike  

  7. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    7   4:20pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    I just want to see how much of a conversation we can have using only YouTube clips.

  8. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    8   6:18pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

  9. TMAC54


    Follow
    Befriend (9)
    70 threads
    930 comments
    San Leandro, CA

    9   7:39pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    Thanks for the mind tweaker Dan. I found these buried in email files. Hopefully they will help others realize tailgating won't get us there any faster.





    Antares is the 15th brightest star in the sky. 
It is fairly close* to us too... only about 600 light years away.
    (Meaning that its light, traveling at 186,282 miles per second, only takes 600 years to reach us!)
     
    [*Note on the "close" distance: To put this 600 light years into perspective...
    The furthest celestial body visible to the naked eye is the Andromeda Galaxy (M31)
    is approximately 800,000 "parsecs" away (800 kiloparsecs)... that's roughly 2,610,000 light years away!
    The "particle horizon", the horizon of the visible part of the universe, is 4 "gigaparsecs" away...
    That's 4 billion parsecs, or 13.2 billion (13,200,000,000) light years away from us!
    Our sun is only 8.3 light-minutes from the earth!]
     
    It's almost unfathomable to think about.



Now how big are you?
    And how big are the things that upset you day to day?
    Or for that matter, the things that are important?
Keep life in prospective!

  10. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    10   7:44pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

  11. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    11   7:46pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

  12. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    12   8:33pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    TMAC54 says

    It's almost unfathomable to think about.



Now how big are you?

    Planck Length is about 1.6 × 10^-35m. Humans are about 1.6 × 10^0 m. So humans are 10^35 times larger than Planck Length

    The universe is estimated to be about 90 billion light years, although it's still up to debate. But let's use that as an estimate. 90 billion light years = 8.51447556 × 10^26 meters. Using a logarithmic scale, humans are pretty much in the middle of the scale of scales.

  13. Kevin


    Follow
    Befriend
    41 threads
    2,655 comments

    13   11:56pm Wed 7 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    Dan8267 says

    Using a logarithmic scale, humans are pretty much in the middle of the scale of scales.

    10^-35th and 10 ^ 26th doesn't really put us in the middle. We're center right ;-)

    Also, this is all as measured from human perspective with human technological limitations. For all we know at this point we could be much further to the right or left of that scale, but we simply lack the technology to observe the smaller or larger objects. Small seems particularly difficult.

  14. Dan8267


    Follow
    Befriend (17)
    1,075 threads
    13,853 comments
    Boca Raton, FL

    14   7:58am Thu 8 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    The left side of the ruler is pretty much solid. The right side is open.

  15. thunderlips11


    Follow
    Befriend (13)
    282 threads
    5,427 comments

    15   8:08am Thu 8 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    Arcturus. A dream that will never come true: Getting a chance to get close enough to see it in all it's glory with my naked eye from an orbit around it.

    Another much easier dream: A manned trip to Io.

    I think we need a "Space Party" that works to get scientific and exploration minded people in government.

    Imagine if we spent $200B on space exploration every year.

  16. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    16   8:26am Thu 8 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    thunderlips11 says

    I think we need a "Space Party"

    Oh Goody, I'll handle the invitations and music!

  17. marcus


    Follow
    Befriend (5)
    208 threads
    7,730 comments

    17   9:09pm Wed 14 Mar 2012   Share   Quote   Permalink   Like (1)   Dislike  

  18. marcus


    Follow
    Befriend (5)
    208 threads
    7,730 comments

    18   9:14pm Wed 14 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    I'm a HS Math teacher, but about 40 years ago, my geometry teacher showed me this (above) on a piece of paper he would flip over that we could see through, saying that it was proof that God had a sense of humor.

    Please, no religious arguments, just sharing an anecdote from my youth. I always show this to kids, sharing the same story. Who knows, maybe the guy that made this (on Igmur and posted on Reddit) got it from someone who got it from someone etc., etc, connecting back to me or my geometry teacher.

  19. TPB


    Follow
    Befriend (1)
    65 threads
    1,209 comments

    19   7:55pm Fri 16 Mar 2012   Share   Quote   Permalink   Like   Dislike  

    blink blink

    EightBall says

    The Scale of the Universe.

    http://htwins.net/scale2/

Dan8267 is moderator of this thread.

Email

Username

Watch comments by email
Home   Tips and Tricks   Questions or suggestions? Mail p@patrick.net   Thank you for your kind donations

Page took 156 milliseconds to create.