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Gemini Observatory

Unique Kuiper Belt Binary Has Unscathed Orbit

16 Feb 2012, 21:01 UTC
Unique Kuiper Belt Binary Has Unscathed Orbit

Figure 1: Gemini Multi-Object Spectrograph (on Gemini North, GMOS-N) observation of the “Plutino” binary system 2007 TY430, which is located nearly 40 astronomical units (AU) from the Sun. (The average distance between the Earth and Sun is 1 AU.) The pair is separated by about 42,000 km, which appears here at maximum separation of only 0.7 arcsecond on the sky.
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