Test #3 Objectives: 2 Flashcards
1
Q
Most Basic Assumption in Astronomy?
A
The laws of physics hold true throughout the universe.
2
Q
Origin of the Crab Nebula & Veil Nebula?
A
Remnants of Super Novas.
3
Q
RR-Lyrae Period?
A
1 Day.
4
Q
Cepheid Period?
A
1-100 Days.
5
Q
Mira Period?
A
Over 100 days.
6
Q
2 Important Factors of Cepheid Variables?
A
- Relation between period and brightness
2. Very bright
7
Q
Limits of Distance on Cepheid Variables?
A
6 million parsecs
8
Q
Why May a Star Change it’s Light Output?
A
It may be a: Pulsar, Nova, Eclipsing Binary, or Variable
9
Q
Stellar Explosions: Mild to Violent
A
Planetary Nebula, Nova, Super Nova
