Always above the horizon at your latitude. In the northern hemisphere this will be the northern horizon and the reverse for the Southern Hemisphere.
Northern circumpolar constellations revolve around the north celestial pole in a counterclockwise manner. They never seem to rise or set, in regards to the horizon. Every 24 hours they seem to complete a revolution around Polaris, the North Star. Because the Earth is a sphere, the number of circumpolar constellations that one sees depends on one's location from the North Pole. At the North Pole, every constellation in the night sky is circumpolar. Below the equator, one cannot see a single circumpolar constellation. These are the common circumpolar constellations of 40-50 degrees N latitude: Ursa Major Ursa Minor Cassiopeia Cepheus Draco
The entire night? Only one night, during the full moon, when the Moon rises at sunset and sets at sunrise. However, the Moon is generally visible in the daytime as well, except for a day either side of the new moon.
Circumpolar Constellation
Northern circumpolar constellations revolve around the north celestial pole in a counterclockwise manner. They never seem to rise or set, in regards to the horizon. Every 24 hours they seem to complete a revolution around Polaris, the North Star. Because the Earth is a sphere, the number of circumpolar constellations that one sees depends on one's location from the North Pole. At the North Pole, every constellation in the night sky is circumpolar. Below the equator, one cannot see a single circumpolar constellation. These are the common circumpolar constellations of 40-50 degrees N latitude: Ursa Major Ursa Minor Cassiopeia Cepheus Draco
A circumpolar staris a star that, as viewed from a given latitude on Earth, never sets.
Toucans come out during the night because they are nocturnal and they sleep at the day.
A night during which you can not see the stars (because it is cloudy).
Any of the circumpolar constellations. Most common: The Big Dipper (Ursa Major), Cassiopea, Cepheus, the Little Dipper (Ursa Minor). This is because these constllations can be seen year-round, and others only appear in certain seasons. (i.e. Orion constellation can only be seen in the night sky during winter.)
In Michigan, Cassiopeia is a circumpolar constellation: it never sets below the horizon. So, the answer to your question is: "At night." Any night there are clear skies you should be able to see Cassiopeia.
because there is no sun
Day, because the water can evaporate. At night it can't because there is no light.
Because it sleeps during the night