How to draw a map of the sky for your journal

 

 

 

This map is for March, 2004.

 

Take a look at the above illustration.  Note how the horizon is at the bottom with the compass point clearly labeled—this is very important.  The compass point is labeled along the horizon, not in the sky.   Please be as precise as possible when indicating the direction of the horizon (use N, S, E, W, NE, NW, SE, or SW). 

 

Note the angular size gauge given in the drawing on the upper right.  This is VERY important.  This gives the reader an idea of how large the map is in the sky.  Use your fist width at arm’s length for 10 degree measurements. 

 

Note that objects are drawn nearly to scale—the Moon is not HUGE, but rather a small object (about 0.5 degrees), so do not distort its size too much. 

 

Other objects are given to establish vantage point, like familiar stars or star clusters, like the Pleiades. 

 

The date next to the Moon helps to show when the Moon is observed.

 

Constellations or portions of constellations can be drawn as well. 

 

 

Answer the following in angular measurements: 

 

According to this map, how high above the horizon is Venus?

 

According to this map, how high above the horizon is Mars?

 

According to this map, how high above the horizon is Mercury?

 

On March 23, according to this map, how high above the horizon is the Moon?  What phase is it in?  Is it waxing or waning?

 

How far does the Moon move from night to night?