Comments on: Rainbows and Stars http://www.alicesastroinfo.com/2008/12/rainbows-and-stars/ I show you astronomy. Wed, 21 Dec 2011 21:32:03 +0000 hourly 1 http://wordpress.org/?v=3.3 By: alicesastroinfo http://www.alicesastroinfo.com/2008/12/rainbows-and-stars/comment-page-1/#comment-113 alicesastroinfo Mon, 15 Dec 2008 20:38:56 +0000 http://alicesastroinfo.wordpress.com/?p=342#comment-113 Howard - Yup. The leading theory I've heard is that the Sun's spectrum peaks in the green, but there's so little green in the spectrum, we actually see the average over that area - leading to yellow. Rita - You're seeing Jupiter and Venus! Aren't they beautiful? -Alice Howard -
Yup. The leading theory I’ve heard is that the Sun’s spectrum peaks in the green, but there’s so little green in the spectrum, we actually see the average over that area – leading to yellow.

Rita -
You’re seeing Jupiter and Venus! Aren’t they beautiful?

-Alice

]]> By: Rita http://www.alicesastroinfo.com/2008/12/rainbows-and-stars/comment-page-1/#comment-114 Rita Mon, 15 Dec 2008 20:36:29 +0000 http://alicesastroinfo.wordpress.com/?p=342#comment-114 Thanks Alice! It's been a long time. I have a planisphere, but it's been so long since I got current star maps that I'm wondering what the two bright planets are in the S/SW? Jupiter and ? Help me out with the planets. I'm not an early riser, so only see in the evening, and because of location, see especially in the S and W. When I was 19, I got a temporary job as a spectrographic technician. We tested metals, including platinum! :/ Thanks! Rita Thanks Alice! It’s been a long time.
I have a planisphere, but it’s been so long since I got current star maps that I’m wondering what the two bright planets are in the S/SW? Jupiter and ?

Help me out with the planets.

I’m not an early riser, so only see in the evening, and because of location, see especially in the S and W.

When I was 19, I got a temporary job as a spectrographic technician. We tested metals, including platinum! :/

Thanks!
Rita

]]> By: Howard http://www.alicesastroinfo.com/2008/12/rainbows-and-stars/comment-page-1/#comment-115 Howard Mon, 15 Dec 2008 20:35:03 +0000 http://alicesastroinfo.wordpress.com/?p=342#comment-115 I enjoyed your latest Astroinfo, but I'm not sure we know why the sun appears yellow. I've seen several explanations, such as (1) The color of a star is determined by its surface temperature and the surface temperature of the sun is in the yellow range (2) It's what happens to white light when the blue is subtracted by Rayleigh scattering or (3) Because of the way our eyes work, a white object will appear yellowish when seen against a blue background. Some astronomers on the Internet say that we don't really know why the sun looks yellow. From my own experience, the sun looks like an off-shade of white, maybe an extremely pale yellow. So the yellow effect to my eyes at least is not that great. Howard I enjoyed your latest Astroinfo, but I’m not sure we know why the sun appears yellow. I’ve seen several explanations, such as (1) The color of a star is determined by its surface temperature and the surface temperature of the sun is in the yellow range (2) It’s what happens to white light when the blue is subtracted by Rayleigh scattering or (3) Because of the way our eyes work, a white object will appear yellowish when seen against a blue background. Some astronomers on the Internet say that we don’t really know why the sun looks yellow. From my own experience, the sun looks like an off-shade of white, maybe an extremely pale yellow. So the yellow effect to my eyes at least is not that great.
Howard

]]> By: Carnival Of Space 83 - The Antipodean Edition | FutuLab http://www.alicesastroinfo.com/2008/12/rainbows-and-stars/comment-page-1/#comment-116 Carnival Of Space 83 - The Antipodean Edition | FutuLab Sun, 14 Dec 2008 01:18:14 +0000 http://alicesastroinfo.wordpress.com/?p=342#comment-116 [...] Finally, Alice’s Astro Info covers the spectrum by talking about rainbows and stars. [...] [...] Finally, Alice’s Astro Info covers the spectrum by talking about rainbows and stars. [...]

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