BANGKOK DEEP-SKY OBJECTS OBSERVING

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OBSERVING ART:

More about: Avert vision, dark adapt, light polluted, seeing....
collect from Sky & Telescope and Orion

• Secrets of deep-sky observing
• The art of using telescope
• Observing from the city
• Using a map at the telescope
• Beating the seeing
• Sky condition rating
• Orion learning center

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