Where can cassiopeia be seen?

If you live north of roughly 34° north latitude, then Cassiopeia is always in the sky, 24/7.

It never sets below your horizon, and is visible at any time on any clear night. (34° north

is roughly the line through Los Angeles, Lubbock TX, Atlanta, Rabat Morocco, Beirut Lebanon,

Baghdad, Kabul, and Xi'an China.)

If your favorite stargazing hour is 10 PM, then Cassiopeia is highest in the sky around the beginning of December.

If you prefer 4 AM, then Cassiopeia is highest in the sky at that hour around the beginning of August.