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How big is your Light Cone?, calculate your ever-growing sphere of potential causality
paxdan
post May 8 2006, 04:43 PM
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I found this really wonderful RSS feed which will calculate the number of stars encompassed in your own personal light cone.

From the link:

From the moment of my birth, light [that I could have influenced] has been expanding around the Earth and light [which could influence me, from an increasing distance of origin] reaching it -- this ever-growing sphere of potential causality is my light cone.

My lightcone contains 32 stars the most recent being P Eridani.
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odave
post May 8 2006, 05:59 PM
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You may have left the link out, Paxdan - I think this is the one. Pretty neat - I'm 3 months away from Zeta Doradus, myself smile.gif

This is similar to Birthday Stars, which is something I read about in S&T a few years back. Basically, your birthday star in a given year is the one with a light-year distance that's closest to your age. When you look at that star, the light you are seeing was emitted by that star on the day (or month or year, whenever you get to see it) of your birth. It was pretty mind blowing to my 8.6 year old when I showed her Sirius wink.gif


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--O'Dave
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Posts in this topic
- paxdan   How big is your Light Cone?   May 8 2006, 04:43 PM
- - odave   You may have left the link out, Paxdan - I think t...   May 8 2006, 05:59 PM
|- - helvick   Clearly there are some advantages to getting older...   May 8 2006, 06:10 PM
|- - paxdan   QUOTE (odave @ May 8 2006, 06:59 PM) You ...   May 8 2006, 06:22 PM
- - djellison   Just 2 days from Mu Herculis here Doug   May 8 2006, 06:33 PM
- - Bill Harris   Make me feel bad. I'm outside their envelope....   May 8 2006, 08:31 PM
- - Bob Shaw   QUOTE (Bill Harris @ May 8 2006, 09:31 PM...   May 8 2006, 10:24 PM

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