Singapore Skies | Sky Conditions | Light Pollution Light Pollution For many astronomers, this is a severe problem which has negative effects on their observations. Light pollution causes the horizon to be over-lit and thus stars near the horizon can be fainter and harder to see. However, one method that is used to overcome this effect is to observe stars that are more than 45 degrees above the horizon, which would not be as affected by the effects of light pollution. The stars are at their clearest when they are overhead. This is also because the light from the stars overhead have to travel a shorter distance through the atmosphere, where the dust in the air could distort the starlight. Another way of combating this is to have a layer of Light Pollution Filter (LPR) on the lenses of telescopes and binoculars. This layer of filter helps to prevent the effects of light pollution from obscuring the image seen in the binoculars or telescope. Singapore Skies | Sky Conditions | Light Pollution
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