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wolram
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How many photons are needed to (obsreve) a body at z=6 ?
The photon requirements for observing a body at z=6 can be calculated using the formula: N = (D/A) * (L * T * f), where N is the number of photons needed, D is the diameter of the telescope, A is the collecting area of the telescope, L is the luminosity of the body, T is the exposure time, and f is the fraction of photons detected by the telescope.
Observing a body at z=6 is significant because it allows us to study objects that are located at a very large distance from us. This can provide valuable information about the early universe and the evolution of galaxies.
The minimum diameter of a telescope needed to observe a body at z=6 depends on the luminosity of the body. Generally, a telescope with a diameter of at least 6 meters is needed for observing a body at z=6.
The exposure time has a direct impact on the photon requirements for observing a body at z=6. A longer exposure time will result in a higher number of photons needed, while a shorter exposure time will require fewer photons.
Yes, it is possible to observe a body at z=6 with a ground-based telescope. However, due to the effects of atmospheric distortion and light pollution, it is more challenging and requires larger telescopes compared to observing with space-based telescopes.