Carl Vogel and Edward Pickering discovered the first spectroscopic binaries, and used Doppler's effect to explain their results. However, this question is rather confused. Binary stars do not change colour (except as part of their evolution, which happens to any star eventually). I think you may be misunderstanding what we call a spectroscopic binary. Some binary stars are close enough to us to be separable in telescopes, but many are too far away for that. One of the ways we can tell a star is binary is by spectroscopy. This does have to do with the wavelengths of light, which correspond to colours, but it is a misunderstanding to think that this involves the star changing colour. Spectroscopy involves dispersing light into a spectrum, that is spreading out the wavelengths into a 'rainbow'. When a light source is moving towards us, wavelengths are shifted towards the blue end of the spectrum and when it moves away, they are red shifted. This is called the Doppler effect. With the continuous spectrum of a star, this does not show up as a change of colour, because everything that is shifted is replaced with wavelengths from further along (the spectrum continues beyond the visible at both ends). The reason we can tell shifting happens is that there are dark lines across a stellar spectrum caused by elements in the star's atmosphere which absorb some of the emitted light. The frequencies at which these lines appear are always the same for the same element. If these lines are found at different frequencies than expected, then the source is moving. Binary stars orbit each other, so part of the time they are moving towards us and part of the time they are moving away. This results in the frequency of the absorption lines' shifting back and forward with time.
A binary star is not any particular color. A binary star system can contain stars of any spectral type.
Scientist know this by the color difference on the planets surface.
No, they will not change color.
It doesn't because it's water and water does not change the color of anything.
transparent roses
Binary Fision is a function. It is not a noun so has no color.
Binary stars can be any color that stars can be. There's no need for the two stars in a binary to be the same color.
A binary star is not any particular color. A binary star system can contain stars of any spectral type.
The phone number of the People-Color Scientist is: 904-551-7986.
The address of the People-Color Scientist is: 5156 Norwood Ave, Jacksonville, FL 32208
Doctor Melissa?
it is by color
Scientists have the same color eyes as all of us.
color change is when a color changes
color
they feel the color they feel like the Camelon they change color if there frighted that turn the color red
Cells can change color?