Astronomy 115 Spring 2000 Name:______________________________ID#_________________________

HW#2

1. Shade the part of the Earth in nighttime darkness for all positions.

 

2. Fill in the following:

Month: A_____________________ B_____________________ C ___________________ D___________________

Season in North A___________________ B_____________________ C ___________________D___________________

3. In the northern hemisphere at which position(s) is it the

Vernal Equinox ________Summer Solstice _______Autumnal Equinox ________ Winter Solstice__________

4. At which position(s) do Northern Arctic circle latitudes never see daylight? A B C D

At which position(s) do Northern Arctic circle latitudes never have night? A B C D

5. Approximately how many months pass between each position? _______________________

6. For the Northern Hemisphere

At which position(s) is the sun below the celestial equator at noon? A B C D

At which position(s) is the sun above the celestial equator at noon ? A B C D

At which position(s) is the sun on the celestial equator at noon? A B C D

7. Fill in the table.

Phase

Draw the Phase

Rise Time

Meridian Time

Set Time

New

Waxing Crescent

 

 

 

 

 

First Quarter

Waxing Gibbous

 

 

 

 

 

Full Moon

 

 

 

 

Waning Gibbous

 

 

 

 

 

Third Quarter

 

 

 

 

 

Waning Crescent

 

 

 

 

 

8. Shade the Moon and label the phases.

 9. At what phases can solar and lunar eclipses occur?

  

10. Fill in the table for the APPARENT motions of the objects as seen from Earth.

Motion

Cause (revolution or rotation of…?)

Rate (degree/hr)

Direction (east to west, etc)

Period (days, hrs)

Daily Motion of Sun

 

 

 

 

 

 

 

Daily Motion of Stars

 

 

 

 

 

 

 

 

Daily Motion Moon

 

 

 

 

 

 

 

Daily Motion of

Planets

 

 

 

 

 

 

Annual Motion of

Sun

 

 

 

 

 

Annual Motion of

Stars

 

 

 

 

 

 

 

Monthly Motion

of Moon