Test #3 Objectives: 1

Question 1

How Many Lightyears are in a Parsec?

Answer 1

3.3 lightyears

Question 2

How Far is a Lightyear?

Answer 2

6 trillion miles

Question 3

Parallactic Motion is?

Answer 3

Apparent motion in something (Earth’s Orbit)

Question 4

Proper Motion is?

Answer 4

Actual motion in something (Sun)

Question 5

The Distance Limits in Trigonometric and Spectroscopic Parallaxes Are?

Answer 5

1,000 parsecs for trigonometric

10,000,000 parsecs for Spectroscopic

Question 6

3 Things that are Plotted Horizontally on the HR Diagram?

Answer 6

Temperature, Class, and Color

Question 7

3 Things that are Plotted Vertically on the HR Diagram?

Answer 7

Luminosity, Apparent Magnitude, and Absolute Magnitude

Question 8

The Naming System for the Stars

Answer 8

Brightest star: Alpha. Second: Beta

Question 9

Closest Star to the Sun (Non-Visible)

Answer 9

Alpha Centauri (4.3 Light Years Away)

Question 10

Closest Star to the Sun (Visible by Michigan)

Answer 10

Sirius (8 Lightyears Away)

Question 11

The Naming System for Planets?

Answer 11

Closest planet to a star would be Roman Numeral I (so Sol III would be Earth).

Question 12

Apparent Magnitude

Answer 12

From Earth, how bright the star LOOKS.

Question 13

Absolute Magnitude

Answer 13

How bright the star IS.

Question 14

Most Star’s Compositon

Answer 14

90% Hydrogen 10% Helium