If the landlord wants to enter the astronomy department, junior high school and senior high school must do two things well:

1. Ensure that astronomy can be a lifelong career. Looking at the stars looks romantic, but it is impossible to look at the stars every day without a little perseverance. You might as well take part in the astronomical olympiad to see if you have any talent in this field, and at least you can meet many colleagues. You can refer to the website of Beijing Planetarium.

2. study hard. Only one school in China has an astronomy department, and all of them are colleges and universities, and their scores are far higher than those of one school. Even though the college entrance examination in Shanghai where I am located is relatively easy, there are more than 530 investment lines in the astronomy department of Nanjing University, which is 60 points higher than one line. I'm afraid I can't do it without enough knowledge.

Once you choose the astronomy department, the road ahead is narrow. It's best to finish your Ph.D. before taking part in scientific research. To say that the second way is not without it, to enter primary and secondary schools to participate in astronomical popular science activities, but this way, does it feel a bit overqualified?

The landlord has a goal at such a young age, which is much better than me. I wish you success!