Again did you even watch the video or other video's on Flat Earth? Most of the answers if not all are there. It's a real shame that you guys don't even do your own research anymore and just regurgitate what you've seen on TV and what you read in the so called "science" books.
Let me enlighten you here. The "planets" you mention are NOT planets. They're are wondering stars. There is Not one single real image, Photo of any of these so called planets. Only cartoon images and cgi videos. Even our Earth is NOT a "Planet" but a Plane which is Flat and Motionless like our senses feel it is. Unfortunately everything we've all been told about science and cosmology is totally FALSE. I shall leave it there, anymore truths from me will be too much for you to even comprehend at this point and don't worry I fully understand as it is only because of the deep subconscious programming since birth that most of you cant see the wood for the trees. I don't say this with malice but with compassion.