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Borrelly

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Borrelly

Periodic comet first observed by French astronomer Alphonse Borrelly in 1904. It has a period of 6.8 years.

A fly-by by NASA probe Deep Space 1 in September 2001 revealed that the comet's 8-km/5-mi nucleus had the darkest surface of any Solar System body then known, absorbing more than 97% of the sunlight that falls on it.
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The reflectivity value typically cited, 4 percent, is based on spacecraft data collected from comets Halley and Borrelly.
Reflecting on the Kuiper belt. (Astronomy) by Science News
Astronomers have studied the nuclei of only two comets close up, Halley and Borrelly (SN: 9/29/01, p.
Comet mission appears to have broken apart. (Lost in Space) by Cowen, R. / Science News
Tanner EDA was involved in the Deep Space 1 project in 1998 where Deep Space 1 encountered Comet Borrelly and returned the best images and other data ever from a comet.
Tanner EDA Enables Martian Images for Earthling Consumption; Camera ... by Business Wire
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