Examlex
Three stars have the following absolute (M) and apparent (m) magnitudes. Star A: M = 1.8 m = 3.8
Star B: M = 2.5 m = 9.5
Star C: M = 7.6 m = 15.1
Which star is closest to Earth?
Portfolio
A collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including mutual funds and ETFs.
Unique Risk
Nonmarket or firm-specific risk factors that can be eliminated by diversification. Also called firm-specific risk, nonsystematic risk, or diversifiable risk.
Diversification
Diversification is an investment strategy that aims to reduce risk by allocating investments among various financial instruments, industries, geographic locations, or other categories.
Portfolio
A collection of investments, such as stocks, bonds, commodities, and real estate, held by an individual or an institution.
Q37: Parts of a supernova remnant become visible<br>A)
Q52: f a nearby star shows a parallax
Q98: The luminosity of a star is a
Q122: The end of the life of a
Q170: The very strong magnetic field on a
Q190: What causes limb darkening?<br>A) The photosphere at
Q216: Sunspots are caused by<br>A) the impact of
Q237: A relatively fast star escapes an open
Q241: If an astronomer were to look at
Q277: Open clusters are NOT<br>A) gravitationally bound.<br>B) the