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rigel造句
1. Rigel is Orion's left foot. 2. Notice the two nearby stars, Rigel Kentaurus and Hadar. 3. Rigel is a hot supergiant star some 700 light-years in the distance. 4. A bright blue star, Rigel illuminates the ominously shaped dust patch known as the Witch Head Nebula, visible as the blue reflection nebula near the lower right corner. 5. The blue color is caused not only by Rigel 's blue color but because the dust grains reflect blue light more efficiently than red. 6. At the other end of the constellation is Beta, near Rigel and only 5 degrees south of the celestial equator. 7. In fact, this entrancing telescopic portrait gives the impression the witch has fixed her gaze on Orion's bright supergiant star Rigel . 8. The brightest star in the frame, near the bottom right, is Rigel . 9. The six stars that compose the Winter Hexagon are Aldebaren, Capella, Castor (and Pollux), Procyon, Rigel, and Sirius. 10. Most constellations have only one bright star, but Orion has two: Rigel and Betelgeuse. 11. Capella is left of the tower and Aldebaran, Betelgeuse, Rigel, and stars in Orion's Belt can just be identified in the heavily light-polluted skies. 12. Farther left are stars of the familiar constellation Orion with Rigel , at the foot of Orion, also reflected in the lake. 13. This suggestively shaped reflection nebula is associated with the bright star Rigel in the constellation Orion. 14. Still farther to the right, at the foot of the hunter, lies Rigel , the brightest star in view. 15. Basking in the glow of the bright supergiant star Rigel, the Witch Head Nebula trails like a puff of smoke through the Eridanus constellation about 700 light years away. 16. The only two missing star positions are for Betelgeuse and Rigel. 17. If it were as close as Sirius, the brightest star visible to the eye (and only about 8.6 light-years away), Rigel would shine much more brilliantly than Venus, our sky's brightest planet.