The plane that contains the orbit of the Earth (known as the “ecliptic”) is tilted by 7.25 degrees relative…
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Online Interactive Sky Chart?
Sky and Telescope provides an online interactive sky chart that I think can provide the information you are looking…

Definitions of Equinox Names in the Northern and Southern Hemisphere
I think that the clearest terms to use to refer to the two equinoxes each year is to refer…

Position of the Moon and North Star from Mississippi in March 1862
One option is to use the positions of the Moon and North Star on the early evening of March…

Calculating the Observability of an Astronomical Object
Since the time standard we used is based on the position of the Sun, while the positions of stars…

How Often Do We Have a “Blue Moon”?
Unfortunately, there are two commonly used definitions for a “Blue Moon”. Since a year has 12 months, and the…