light hour - the distance light travels in a vacuum in one hour; approximately one billion kilometers. astronomy unit - a linear unit used for astronomical distances. light year, light-year - the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers.
Do you have a question about Keystone Health or our services? You may contact our practices by using the phone numbers found at the right or by calling the Keystone Health administrative office at (717) 709-7900. Our fax number is (717) 709-7925. PLEASE NOTE: This is the fax to our administrative office.
Customer Service. Visit the customer support section of fedex.com for FAQs, e-mail inquiries or telephone support. We also post verifications of insurance as a courtesy to our customers. For additional information, call our customer service number: 1.800.Go.FedExÂ® (800.463.3339).ustomer Service. Visit the customer support section of fedex.com for FAQs, e-mail inquiries or telephone support. We also post verifications of insurance as a courtesy to our customers. For additional information, call our customer service number: 1.800.Go.FedExÂ® (800.463.3339).