ASTR 110L                                                                                                                          Name:                                               

Fall 2009

Moons of Jupiter — Observations

1.  Record the date and time. 

2.  Carefully sketch the positions of Jupiter’s four Galilean satellites (moons).  Align them horizontally on the page.  The “disk” of Jupiter is shown as the circle in the center — use its size as a rough “measuring stick” for the placement/spacing of your moons. 

3.  Sketch any details you are able to observe on the disk of Jupiter (cloud bands, perhaps Great Red Spot?, etc.).  Make a note of any colors, etc. 

4.  Later, use a paper chart or computer simulation to label all moons with their names.  Also use this to label the direction of North (and/or South) pole on Jupiter.  Do so for EACH sketch.  If you observed fewer than four Galilean moons, use the chart/simulator to identify where the “missing” moons were, and note it on each sketch. 

Date & time:

Date & time:

Date & time:

Date & time: