Frame
Top Mat
Bottom Mat
Dimensions
Image:
7.50" x 8.00"
Overall:
9.50" x 10.00"
Sirius Binary Star System Poster
by Science Photo Library
$44.56
Product Details
Sirius Binary Star System poster by Science Photo Library. Our posters are produced on acid-free papers using archival inks to guarantee that they last a lifetime without fading or loss of color. All posters include a 1" white border around the image to allow for future framing and matting, if desired.
Design Details
Sirius binary star system, Hubble Space Telescope image. Sirius A (centre, Alpha Canis Majoris), in the constellation Canis Major, is the brightest... more
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3 - 4 business days
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Artist's Description
Sirius binary star system, Hubble Space Telescope image. Sirius A (centre, Alpha Canis Majoris), in the constellation Canis Major, is the brightest star in the night sky and only 8.6 light years from Earth. It has a very small, faint companion, Sirius B (small dot at lower left). Sirius B, only 12,000 kilometres in diameter, is a white dwarf star, the collapsed core of a star. Normally, the companion star would be obscured by the brightness of its companion, but Hubble's Wide Field Planetary Camera 2 instrument was used to locate the star, and other instruments were then used to measure the gravitational redshift of its light, and hence its mass. Sirius B has a mass 98% of that of our Sun. The results were published in December 2005.
About Science Photo Library
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