![]() ![]() ![]() ![]() ![]() ![]() And here's an encore. Another amazing shot of the Bubble Nebula.NEW! ![]() ![]() ![]() |
![]() Got a case of arachnophobia? This image of the largest spider in the universe will likely produce more amazement than terror. The new Hubble image presets an awe-inspiring look at the rippling legs of the Red Spider Nebula. Also known as NGC 6537, the twin-lobed planetary nebula is the gaseous remains of material shed from a collapsed star in Sagittarius. The huge wrinkles seen in the lobes are produced by high-speed stellar winds hurtling away from the dense, central star and impacting the surrounding gas. Hubble took images of the Red Spider at five different wavelengths in 1997. These images reveal that the white dwarf at the heart of the nebula has a temperature of at least half a million degrees, making it one of the hottest stars around. The gaseous lobes are also searing hot, with temperatures exceeding 17,000 degrees F (10,000 degrees C). The composite image shows the product of rapid stellar winds shooting away from the blistering star at speeds up to 2,800 miles (4,500 km) per second. Like Earthly winds blowing across an ocean, these stellar winds push against the gas, forming magnificent waves that crest as high as 62 billion miles (100 billion km) and break at the lobes' edges. |
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