1. hotter and larger

1. hotter and smaller

1. cooler and larger

1. cooler and smaller

1. a main sequence star with a temperature of approximately 4,000*C and a luminosity of 100

1. a main sequence star with a temperature of approximately 6,000*C and a luminosity of 1

1. a white dwarf star with a temperature of approximately 10,000*C and a luminosity of 0.01

1. blue supergiant star with a temperature of approximately 20,000*C and a luminosity of 700,000

1. Spica, Rigel, Deneb, Betelgeuse

1. Polaris, Deneb, 40 Eridani B, Proxima Centauri

1. Barnard’s Star, Alpha Centauri, Rigel, Spica

1. Procyon B, Sun, Sirius, Betelgeuse

1. less luminous and have a lower surface temperature

1. less luminous and have a higher surface temperature

1. more luminous and have a lower surface temperature

more luminous and have a larger surface temperature

1. yellow color

1. high temperature

1. distance from Earth

1. chemical composition