Question

Which of these best describes how an appropriate star chart is selected to locate objects in the sky?

match the temperature and humidity of the air


match the day and time of the year and location
match the latitude and number of stars in the sky
match the hemisphere and shape of constallations

Answer 1

The layout of the stars in the sky is determined by the date, time of night, and your location (mainly latitude). So to pick the best star chart, you should go with the one that's closest to the present date and your location, then make allowance for what time it is. Everything in the sky moves about a degree every 4 minutes.

Answer 2

match the day and time of the year and location

Step-by-step explanation:

The stars that we see on the sky change with the station of the year, they change their position depending of the day of the year and the location, mainly the latitude since on that depends what "side" of the earth the sky is facing towards, at certain points the north hemisphere sees a different sky than the south, but the east and west as long as they are in the same latitude do see the same sky.