Double Stars Galore!
Here is a technique thatwill help you split difficult double stars and see greater detail in planets. A difficult double star can be one in which there is a great difference between the brightness of the main star (primary) and its companion, or where two bright stars are very close together. The glare of a bright primary can often drown a feeble companion. Also, when two stars are very close together, the image of the fainter star may actually lie on one of the diffraction rings of the primary.
KeywordsPosition Angle Double Star Royal Astronomical Society Color Letter Objective Mask
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