2.8.T - Lesson Review: Uranus, Neptune, & Pluto / Stars - Characteristics of Starts Flashcards
Uranus has an atmosphere made mostly of _____________.
carbon dioxide
methane
helium
hydrogen
nitrogen
hydrogen
What causes the blue color of Neptune?
Methane
Water
Helium
Artist rendering
Hydrogen
Methane
Pluto is now considered a ____________.
planet
dwarf planet
comet
planetesimal
moon
dwarf planet
On the exact 25th anniversary of Voyager 2’s flyby of Neptune, _____________________ spacecraft reached Neptune on Aug 25, 2014.
Messenger
Voyager 1
Cassini
Apollo 11
Mariner 10
New Horizons
New Horizons
The two largest moons of Uranus are named ____________ and ________________.
Ganymede
Triton
Eos
Europa
Titania
Oberon
Eris
Deimos
Titania
Oberon
The temperature of Polaris is approximately _______________.
20,000 K
10,000 K
8,000 K
6,000 K
4,000 K
6,000 K
The luminosity of Polaris is approximately _______________ solar units. Please use the diagram that will give you the most accurate answer.
100,000
10,000
1,000
100
1
10
1,000
The temperature of Betelgeuse is approximately _______________.
2,000 K
3,500 K
10,000 K
6,000 K
8,000 K
5,000 K
3,500 K
Sirius is the size of a _______________ star like the Sun.
super giant
giant
white dwarf
supernova
main sequence star
main sequence star
What characteristics does Rigel have? (Choose 3)
Blue star
B-class star
8,000 K
A-class star
10,000–20,000 K
White star
10,000–20,000 K
Blue star
B-class star
Where are trans-Neptunian objects located?
Your Answer:
Trans Neptunian objects are located in the Kuiper belt.
What is the difference between the apparent magnitude and absolute magnitude of stars?
Your Answer:
Apparent magnitude does not consider how far away the star is measured by its luminosity. While absolute magnitude puts all the stars at the same distance and then measures their luminosity.
