Polaris (North Star or Pole Star) has an apparent magnitude of +1.97 (Variable)
Polaris is a variable star in that it's brightness varies. It has an apparent magnitude of between 1.92 and 2.07.
This is close to the minimum brightness of Mars.
No. Like all stars, Polaris emits light
Zero.Zero.Zero.Zero.
The earth does not emit light, but it does reflect light from the sun.
A prism refracts light, and a mirror reflects light.
Light doesn't reflect light, nor does any other electromagnetic radiation.
Planets cannot emit light. They merely reflect light from nearby stars.
It is a star, so it emits light.
The polaris is 430 light years from Earth.
Planets reflect light.
Telescope reflect light
White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.
Zero.Zero.Zero.Zero.
Yes. Polaris is a star and stars emit light. It's commen name is the Northern Star. ami http://en.wikipedia.org/wiki/Polaris
Mirrors reflect light.
Mirrors do reflect light
I belive stars make light, not reflect them.
Planets are dark spheres that reflect light from the sun.
The earth does not emit light, but it does reflect light from the sun.