Vivitar VIV-TEL-76700 Manual De Usuario

1. Hot air is always moving through the atmosphere .This motion can cause bad images in 

high power conditions, which is why it is often preferred to observe at several night .

2. Hot air on the surface of the earth will also cause waves of the air to make the image 

twisted and crushed . This can make the observing conditions very bad.

3. Light pollution : try hard not to use your telescope around street lights , or under your 

home’s lights.  

4 .Moonlight is  another factor that affects tone’s observation , as the  full moon or the bright 

moonlight will make the stars and the planets nearby dim .

5. Be careful not to observe from open windows (or even through  closed windows) 

especially during winter when the temperature outdoors varies greatly compared to the 

temperature indoors.

6. Clouds in the sky can hinder your observations , but fortunately these clouds will move 

often .

7. Heavy fog can make observation impossible.