Comments on: Why are there no green stars? http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/ I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog. Mon, 09 Nov 2009 08:08:51 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Mike http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-195193 Mike Fri, 26 Jun 2009 20:46:50 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-195193 "The x-axis is wavelength (color, if you like) color, and the spectrum of visible colors is superposed for reference." Wavelength and color have almost nothing to do with one another. For example, while some pure colors happen to correspond to particular wavelengths, but other pure colors cannot be produced by any light of a single wavelength. This was already known to Newton and Helmholtz. It's really a shame that many physicists still don't know the first thing about color. “The x-axis is wavelength (color, if you like) color, and the spectrum of visible colors is superposed for reference.”

Wavelength and color have almost nothing to do with one another. For example, while some pure colors happen to correspond to particular wavelengths, but other pure colors cannot be produced by any light of a single wavelength. This was already known to Newton and Helmholtz. It’s really a shame that many physicists still don’t know the first thing about color.

]]> By: mental_floss Blog » Morning Cup of Links: Sex Determination Lab http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-193847 mental_floss Blog » Morning Cup of Links: Sex Determination Lab Mon, 22 Jun 2009 14:29:46 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-193847 [...] just not that simple. * There are blue stars, red stars, and yellow stars. Why are there no green stars? * Take a nice relaxing flight. There, isn’t that soothing? * 10 Things You Should Know About [...] [...] just not that simple. * There are blue stars, red stars, and yellow stars. Why are there no green stars? * Take a nice relaxing flight. There, isn’t that soothing? * 10 Things You Should Know About [...]

]]> By: lila http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-192893 lila Thu, 18 Jun 2009 15:16:10 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-192893 el horto dia mire por mi telescopio i mire acia una estrella i era de color berde es posible que fuera una nave de extraterestres????????????????? el horto dia mire por mi telescopio i mire acia una estrella i era de color berde es posible que fuera una nave de extraterestres?????????????????

]]> By: Estrellas verdes « La Ciencia para todos http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-187771 Estrellas verdes « La Ciencia para todos Mon, 01 Jun 2009 19:14:50 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-187771 [...] este enlace podéis ver una gráfica de cómo es la emisión de una estrella según su temperatura (según la aproximación de cuerpo [...] [...] este enlace podéis ver una gráfica de cómo es la emisión de una estrella según su temperatura (según la aproximación de cuerpo [...]

]]> By: Pisces http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-176346 Pisces Thu, 23 Apr 2009 19:46:55 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-176346 @madge....."The Night Sky" Beautiful @madge…..”The Night Sky”

Beautiful

]]> By: Ben Nagorsen http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-168360 Ben Nagorsen Fri, 27 Mar 2009 21:08:30 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-168360 WZ Cas (near Beta Cas) is a nice example of a coloured double star (Spectral types N and A, distance 58", around mag 8). Due to the contrast to the red N star the A star really looks green to me (and to most of my fellow observers). It's like traffic lights without the yellow light. WZ Cas (near Beta Cas) is a nice example of a coloured double star (Spectral types N and A, distance 58″, around mag 8). Due to the contrast to the red N star the A star really looks green to me (and to most of my fellow observers). It’s like traffic lights without the yellow light.

]]> By: REAL star looks - Bad Astronomy and Universe Today Forum http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/comment-page-4/#comment-139510 REAL star looks - Bad Astronomy and Universe Today Forum Mon, 08 Dec 2008 19:22:18 +0000 http://blogs.discovermagazine.com/badastronomy/2008/07/29/why-are-there-no-green-stars/#comment-139510 [...] related reading: Why are there no green stars?, by the BA. More here. Nick __________________ Nick [...] [...] related reading: Why are there no green stars?, by the BA. More here. Nick __________________ Nick [...]

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