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Star Charts

A star chart is a map of celestial objects in the night sky. Since long ago, humans have used these charts as a navigation tool. Today, we use them to locate and observe stars, planets and galaxies for educational purposes.

 

Generating A Star Chart

Star charts can easily be found on the internet. Some websites have static charts for you to download, while others are much more interactive. Typically, all you need to know is when you will be observing and your zip code.

 

The interactive tools give you several options, allowing you to add grids, constellation lines, and object names, along with other information. However, make sure your chart has markings in the North, South, East, and West directions (you will need this when you use the map).

 

For more information on how to generate a star chart, please visit one of the following:

 

http://www.astronomy.com/stardome.aspx

http://www.wunderground.com/sky/index.asp

http://www.midnightkite.com/starcharts.html

 

Mobile Star Charts

With the advent of smart phones and tablets, interactive mobile star charts have become possible. A variety of star chart applications are available for download to these devices, providing you with another tool for oberservation.

 

Using A Star Chart

Using a star chart is relatively straight-forward. All you need is the chart, a compass or knowledge of direction, and a clear evening.

 

1. Walk outside. Find a spot where you can clearly observe the skies.
2. Face due North.
3. With the chart held straight out in front of you, rotate the chart until the North marker on the chart is facing straight down.
4. Look for a constellation or pattern of stars marked on the map.
5. Look up, above the chart. See if you can locate the same pattern in the sky.
6. Try facing South. Rotate the map until the South marker on the chart is facing down. See if you can find other constellations or star patterns.

 

Here is a video on how to read a star chart, courtesy of Astronomy Magazine (you may also visit :

http://www.youtube.com/watch?v=QTO11vNMRJg to see the video):

 

 

References

Please visit our references page.