albedo
Refractive indices, n, have no units because they are ratios. They are the ratio of the speed light in a vacuum C, (~3x108m/s) to speed of light in the medium vm. Therefore:
Mix red and white to achieve a light cherry color. Adjust the ratio of red to white to get the desired shade of light cherry.
To get a light green color, you can mix yellow and blue together. Adjust the ratio of each color to achieve the desired shade of light green.
A light blue tube typically requires a 1.9 ratio of anticoagulant to blood. This tube is often used for coagulation studies.
Yes. A photometer is an instrument that measures the intensity of the incoming light and quantifies it into numerical data. A photometer is a light sensitive device and measure the power of light.
Stars are the sources of light. If they did not emit light, there would be no stars and thus no astronomy.
Light years measure distance in astronomy. It is the distance that light travels in one year, which is about 9.46 trillion kilometers.
Studying light is one part of astronomy. Things like the speed of light, how it travels, the spectrum of light are all things that are used in studying astronomy. Studying light emitted from a star can tell us all sorts of things about it, like how far away it is and how bright it really is.
Light years are a unit of measurement used in astronomy to indicate the distance that light travels in one year. This distance is about 5.88 trillion miles. Light years are significant in astronomy because they allow scientists to measure vast distances in space, such as the distance between stars, galaxies, and other celestial objects.
Light pollution and air pollution effect astronomy by making it more difficult to view the stars. If you notice, when you get out of the cities where there is less air and light pollution, you are better able to view the stars.
A unit that is commonly used in astronomy is the light-year - the distance light travels in a year.
In astronomy, air mass means the length of light passing through Earth´s atmosphere. Source of light may be from any celestial body. The brightest source of light is the sun and then comes the moon. The moon radiates light reflected from the sun.
Zenith, zodiac, zodiacal light.
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".
The ratio of their speeds is 1.00000 . In vacuum, all wavelengths of light, and of all other forms of electromagnetic radiation, have the same identical speed.
That is short for "light-year" - the distance light travels in a year. Approximately 9.5 million million kilometers.
Astronomy can confirm things that you can't see on earth due to gravity and the atmosphere - things like the absolute speed of light (light in a vacuum) or what is the sun made of? Informaiton about other places often tells us about our own home.