a. Light travels through what medium? electromagnetic field
ii. Strong and weak nuclear forces
1. Strong holds nuclei of atoms together
2. Weak can change particles from one type to another- radioactive
3. Electromagnetic force,
Light Gathering Power of Telescopes
LGP = Light Gathering Power
A = area of telescopes mirror,
D = diameter of mirror,
LG = Light Gathered,
t = collection time, , image
Speed of light
The speed of light is 3 * 10 ^ 5 kilometers/second.
Earth's rotation length
Earth rotates on its axis 360 degrees every 24 hours.
Earth's revolution length
It takes 12 months for Earth to revolve 360 degrees.
An imaginary "
A newly discovered exoplanet orbits a distant star. It orbits in a circular pattern 1 Au
every 10 years
a. M/ Mo = (a/1AU)^3 / (P/1 year)^2 = 10^3/10^2 = 10
b. M = 10 Mo
a. We have sent spacecraft to:
i. All planetary sy