Naked eye one knows the exact position in which to look. Historically, the zenith of naked-eye astronomy was the work of Tycho Brahe (1546–1601). He built an extensive observatory to make precise measurements of the heavens without any instruments for magnification. In 1610, Galileo Galilei pointed a telescope towards the sky. He immediately discovered the moons of Jupiter and the phases of Venus, among other things. Meteor showers are better observed by naked eye than with binoculars. Such showers include the Perseids (10–12 August) and the December Geminids. Some 100 satellites per night, the International Space Station and the Milky Way are
December Hydrids (December 4–15), and the Ursids (December 17-to December 25/26, peaking around December 22). "This list does not necessarily imply either official status or general observance." Last Week of November: November 25 – December 1 First Sunday: December 2 Fourth Sunday before Christmas Day: December 2 First Monday in December and following 7 days: December 3-9 First Friday: December 7 Sunday two weeks before Christmas: December 9 Second Monday: December 10 December 15, unless the date falls on a Sunday, then December 16: December 15 Second-final Sunday before Christmas Day: December 16 Thursday before Christmas: December 20 Winter Solstice: December