Hebrew calendar (astronomically called a lunar conjunction and, in Hebrew, a molad) is the moment at which the sun and moon are aligned horizontally with respect to a north-south line (technically, they have the same ecliptical longitude). The period between two new moons is a synodic month. The actual length of a synodic month varies from about 29 days 6 hours and 30 minutes (29.27 days) to about 29 days and 20 hours (29.83 days), a variation range of about 13 hours and 30 minutes. Accordingly, for convenience, a long-term average length, identical to the mean synodic month of ancient times (also
America-class steamship "Europa" was also chartered as a troopship during the Crimean War and continued in Cunard service until 1867, when she was sold and converted to a sailing ship. Won the eastbound record in 1849 with a Halifax–Liverpool voyage of 8 days 12 hours 44 minutes, an average of . During the Crimean War, she remained on the Halifax route and was sold for conversion to a sailing ship in 1866. Took the Blue Riband in May 1850 with a Liverpool–Halifax run of 8 days 14 hours 50 minutes, an average of . "Asia" also remained on the Halifax route during