Our Stellar Neighborhood (<50 light-years)

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Eccles
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Our Stellar Neighborhood (<50 light-years)

Post by Eccles » Wed Sep 20, 2006 5:56 am

Our Stellar Neighborhood - within 12, 25 and 50 light-years

This is an opportunity to look at a 3D view of the stars in our local universe—without using those red/blue lens glasses that you get at a 3D movie. It involves de-focusing your eyes and will take you 15-20 minutes to see it in 3D after you read the instructions. The de-focusing won’t hurt your eyes, but it will require learning at: http://www.cs.indiana.edu/~hfoundal/ast/3dinstr.htm

Harry Foundalis, a PhD candidate at Indiana University’s Dept of Computer Science a few years ago created 3D views of our local universe at distances of 12, 25 and 50 light years from our star, the Sun. He has a number of diverse topics that he’s been into as a Cognitive Sciences major.

Part 1 – Our Stellar Neighborhood – discusses a stereograph and has stereograph pictures of stars at distances of 12 and 25 light-years from our Sun at: http://www.cs.indiana.edu/~hfoundal/ast/sneigh1.htm

Part 2 – Our Stellar Neighborhood – shows the 50 light-year star system at: http://www.cs.indiana.edu/~hfoundal/ast/sneigh2.htm

It’ll take you about 20 minutes to plow through the material; however, you’ll prove to yourself that you can see in 3D without the 3D glasses! I start out looking at the two, separated views and then as I de-focus my eyes ('sorta like looking at something 12 inches in front of your nose and squinting a little) a third, 3D view materializes between the two views.

There’s a pretty nifty animated .GIF of the 25 light-year view that has the stars revolving about a small yellow dot that represents our Sun in the middle of the picture at: http://www.cs.indiana.edu/~hfoundal/ast/sneigh1a.htm

Yours in cross-eyed wonder,

Eccles

7Serpent
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Re: Our Stellar Neighborhood (<50 light-years)

Post by 7Serpent » Wed Aug 02, 2017 2:33 pm

Eccles wrote » ... a loong time ago -Wed Sep 20, 2006 6:56 am

Looks like no longer any access... links all say forbidden when trying to access. That's too bad

animus
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Re: Our Stellar Neighborhood (<50 light-years)

Post by animus » Thu Aug 03, 2017 4:31 am

That's what the Wayback Machine is for ;)

https://web.archive.org/web/20061202140 ... dinstr.htm

7Serpent
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Re: Our Stellar Neighborhood (<50 light-years)

Post by 7Serpent » Thu Aug 03, 2017 1:07 pm

Wow was that fun in 3D!.. and the one with rotation was really awsum. That wayback guy is quite amazing! Thanks for the Wayback lesson. For some reason I saw the 3D with 3 views, they were not merged into one picture? l was only looking at the center view and for the other side views l just ignored as they were sorta in my peripheral. I could easily focus on any specific object in 3D so it does work whatever l was doing. have been doing something similar when sungazing where the Sun is the distant object; therefore, l was able to refocus without much practice to see the third dimension.

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