Orion

Rigel is the brightest star in constellation Orion (despite being designated as the second brightest in 1603) and is the seventh brightest star in the night sky. It is a Blue Supergiant star (spectral type B8I) with a mass 18-24 times more massive and approximately 300,000 times more luminous than our Sun. A companion star is visible in small telescopes but this companion is itself a triple star system which can only be discerned in very large telescopes.
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The colorful pair of Pi 5 ori and 5 Ori, though not recognized as either a physical or optical pair in the double star catalogs nevertheless is strikingly similar to Delta Lyrae (H VI 3) and Omicron Cygni (STFA 50).
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The Trapezium lies at the heart of the Orion Nebula – a rich star forming region. The challenge of resolving the E and F components is a popular test of telescope optics and visual acuity among amateur astronomers.
Many of the major components of the Trapezium are themselves multiple star systems as shown in diagram above.
My best shot – cleanly resolving the E & F components
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