Indus Sky

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Rigel

Rigel

 
Object ID: Rigel - Beta Orionis
  Rigel (Beta Orionis) is a supergiant. Its name comes from the same root as Betelgeuse's, originally "Rijl Al-jauza," meaning the "foot" of al-jauza, the Arabs "Central One." For us, the star represents the left foot of Orion, the mythical hunter. Rigel is brightest star in ORION and becomes 7th brightest star in entire sky. At a distance of 775 light years, Rigel actually shines with the light of 40,000 Suns. It is a "blue supergiant," a fairly hot star with a surface temperature (11,000 Kelvin) about double that of our Sun. Rigel is accompanied by a fairly bright, seventh magnitude companion nine seconds of arc away. Normally such a star is easily found in a small telescope, but Rigel's brilliance nearly overwhelms it. The companion, at least 50 times farther from Rigel than Pluto is from the Sun. This is our first RGB image using Monochrome CCD and color filters.

Optics: Meade 12" F/10
Mount: Losmandy G11
Camera: DIS Pro + Meade RGB Filter set
Guiding: No Guiding
Exposure: 0.3 sec : RGB 0.1sec each
Aquired On: 18 October 2008
Location: Baner, Pune, Maharashtra, India
Image Processing: Combined in Photoshop