Are star charts correct when the night sky faces a different part of the universe every six months?
This question is about all stars in the universe that are visible on earth.
I am looking for people who checked if the star charts Stellarium (and other sky maps) are showing (at the same location) on the 21st of December and the 21st of June are 100% accurate and consistent with all the movements of the spinning and flying tilted earth through space?
Please keep in mind that the night sky is facing a completely different part of the universe every six months.
I believe you will find that they are, but let's make this an experiment.
Download Stellarium (I will do the same) and let's look at the position of the stars tonight, November 2, 2015, at say 8pm. Since we presumably live on different parts of the earth, our night skies will be a little different from each other, but as long as your copy of Stellarium (or your star chart, if you'd prefer to use one) accurately predicts your night sky tonight, we're good.
In six months (that is, May 2 2016), the night side of the earth should, as you say, face a different part of the universe. Use stellarium to predict the position of the stars that night at a given time (probably choose a later time, say 9pm or later, since days are longer in May). We can post results here, and then we will determine once and for all the answer to your question.