I don't know

Space/Science » in reply to Who's on first?

I don't know

RobVG — 6/9/2009 2:30:35 AM (archived)

I don't know about you, but that just blows my mind that such a tiny change in the stars velocity allows us to measure a shift in spectral lines. And at such large distances too.

The whole thread (35 posts)

Kepler looking at Red Dwarfs - Buck Galaxy - 6/7/2009 3:03:45 AM
- The supernova hail. an active SETI technique. - ER - 6/7/2009 7:05:29 PM
- re: Kepler looking at Red Dwarfs URL problem fixed here - phil - 6/7/2009 3:48:53 PM
- The SETI implications - ER - 6/7/2009 11:48:42 AM
  - M Tidal Locking - phil - 6/7/2009 3:58:25 PM
    - two exceptions to tidal locking - pwokenyaw - 6/9/2009 5:29:30 PM
      - re: two exceptions to tidal locking - phil - 6/9/2009 7:58:33 PM
        
        New paper on tidal influences for habitable zones - pwokenyaw - 6/17/2009 5:47:45 PM
- What are alien "Keplers" seeing? - TB - 6/7/2009 4:32:31 AM
  - re: What are alien Telescope Arrays seeing? - mip - 6/7/2009 2:00:11 PM
    - Goal: deploy telescope array at 12% speed of light - mip - 6/7/2009 2:28:25 PM
      - LOL - mip - 6/7/2009 2:42:51 PM
  - Good point. - ER - 6/7/2009 11:38:03 AM
    - re: "depends a lot on our aliens, too." - TB - 6/7/2009 7:53:25 PM
      - Signal attenuation. - ER - 6/8/2009 12:57:34 AM
      - re: "depends a lot on our aliens, too." - ER - 6/8/2009 12:42:53 AM
        
        Star Trek Syndrome - Socrates II - 6/8/2009 1:03:06 PM
    - Line of sight - Socrates II - 6/7/2009 1:18:45 PM
      - re: Line of sight - RobVG - 6/7/2009 4:55:37 PM
        
        re: Line of sight - TB - 6/7/2009 7:49:04 PM
        
        Inverse Transit Method - mip - 6/7/2009 11:29:16 PM
        
        It works just the opposite... - ER - 6/7/2009 6:44:42 PM
        
        What Doppler effect? - RobVG - 6/8/2009 3:21:06 AM
        
        re: What Doppler effect? - ER - 6/8/2009 10:36:12 AM
        
        Who's on first? - ER - 6/8/2009 12:23:54 PM
        
        I don't know - RobVG - 6/9/2009 2:30:35 AM
        
        High dispersion spectroscopy - ER - 6/9/2009 3:11:37 AM
        
        Amazing - RobVG - 6/9/2009 3:37:24 AM
        
        Hubble did his work in the 20s and 30s with photography and the 100 inch telescope. - ER - 6/9/2009 10:43:02 AM
        
        Humans did send a "digital time capsule" to the Gliese 581 system in 2008 - Socrates II - 6/8/2009 1:23:13 PM
      - Dwarf denizens - ER - 6/7/2009 1:36:09 PM
        
        Just as we used to think most solar systems would look like ours... - Socrates II - 6/8/2009 1:29:34 PM
        
        Selection effect - ER - 6/8/2009 1:37:44 PM
        
        I know, but... - Socrates II - 6/8/2009 1:59:43 PM
        
        They had good reasons for being wrong...as always. - ER - 6/8/2009 3:54:33 PM

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