Re: Nearby stars-why do they start at 4LY?


"Androcles" <Headmaster@xxxxxxxxxxxxxxxx> wrote in message news:vlOgk.26498$gU4.6266@xxxxxxxxxxxxxxxx

"John C. Polasek" <jpolasek@xxxxxxxxxx> wrote in message
news:5b9784dng0s0hkgu94con8409ur7kiatqg@xxxxxxxxxx
| Wiki et al show tables of the first 20 or 50 starsnearest the earth.
| The distances for the first few are
| .. .. .. 4.3 6.0 7.7 8.4 8.6 9.4 10.4 LY
| 1.7 1.7 .7 .2 1.2 1 the differences
| Why are there no stars from 0 to 4.3 LY? From the difference list
| there should be at least 2 closer than 4.3.
| These are probably the few that can be measured using the parallactic
| effect. It just doesn't seem likely that such a void exists.
| John Polasek


Why are you a cretin? There should be at least 55 morons
writing to sci.astro ahead of you and you the closest. The next
poster is at least an hour away from you, it just doesn't seem
likely that such a void exists.
Look, imbecile, that's the way it IS, there is no "why" to it.


But there is a simple "why" to it.

The number of stars of stars less than x light year ways away is proportional to x^3, and the number between x and x+1 light years away is proportional to 3x^2. So the number close to the earth falls away with the square of the distance; its not a linear relationship; and the difference is most dramatic for small distances (x =1, 2, 3).

Look, imbecile, that is the way it IS, the "why" is a geometrical argument.






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