The first accurate measurement of Neptune's rotational period has been determined by tracking specific atmospheric features. A day on Neptune lasts precisely 15 hours, 57 minutes and 59 seconds.
Source: http://www.cosmosmagazine.com/news/4474/neptunes-day-measured
Cheryl Burke China Chow Chloë Sevigny Christina Aguilera Christina Applegate Christina DaRe Christina Milian
