Currently Central European Time (CET), UTC +1 Daylight saving time (Central European Summer Time (CEST), UTC +2) starts March 25, 2018 The IANA time zone identifier for Wuppertal is Europe/Berlin. Read about Wuppertal in Wikipedia
In English, it was known as pole star or north star; in Spenser, also steadfast star. An older English name, attested since the 14th century, is lodestar guiding star, cognate with the Old Norse leiÃ°arstjarna, Middle High German leitsterne. Use of the name Polaris in English dates to the 17th century. It is an ellipsis for the Latin stella polaris pole star. Another Latin name is stella maris sea-star, which, from an early time, was also used as a title of the Blessed Virgin Mary, popularized in the hymn Ave Maris Stella (8th century).
The brightest star in the sky, Sirius is also known as the dog star. This is because it is in the constellation of Canis Major, or the Great Dog. It's name comes from Arabic, meaning the scorched one. However, Sirius is not a lone star at all. It has a companion star, only about the size of the Earth.