5477 Holmes (provisional designation: 1989 UH2) is an inner main-belt binary asteroid.It was discovered by Eleanor F. Helin at the Palomar Observatory in San Diego County, California, on October 27, 1989. It was found to be a binary asteroid from light curve observations in 2005.
- Johnston, Robert. "(5477) Holmes". johnstonsarchive.net. Retrieved 28 May 2015.
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