Where in the night sky would you find Leo the constellation?
In the Northern Hemisphere.
Leo is a constellation not a star . Although Leo is the name of a constellation, several of the stars in the constellation share the name. The star "Regulus" is also known as "Cor Leo". All of the brightest stars in Leo are designated "Leo" with a Greek letter prefixing "Leo" to indicate they are in that constellation. The constellation itself is found between Cancer and Virgo. Astronomically, the sun passes into the 30 degree…
From the central USA, the entire constellation of Leo is visible at some time of night from mid-September, through fall, winter, spring, and early summer, until early August. For 12:00 midnight stargazers, Leo is visible from late December until mid-May. If you can't see Leo on a night within these ranges of dates, then either the sky is cloudy, or else you need to consider a different time of night.
The Aquarius Constellation is situated between Copricornus and Pisces. The constellation is best seen at 9pm during the month of October. Visible between latitudes: 65 Degrees and -90 Degrees. Probably the best time of night to see the Aquarius constellation would be in August. That's when the sun is in its polar sign - Leo.
As a result of the earth's yearly orbit, each of the constellations visible at your latitude can be seen for a time in the night sky. Leo is most easily visible in the north during the month of April. Around October, the sun rises in or near the constellation Leo; it is still up there, but obscured by the brightness of the sun.