Are the planets installed in a certain way?
1315522
Yes. The base has the names of the planets on it so you know where to stick each one.
1315523
No. You put them on how you want... but seriously this thing a garbage. I would not reccomend buying it, ours stopped spinning after 6 minutes of use.
1775975
Yes, I actually have mine installed that way with no problem.I think they look better that way.
2280904
Definitely yes. Saturn's ring and Jupiter's moons are clearly visible. Phases of Venus are also visible. Mars looks like a red disk (not just a small dot).
62888
Not sure I actually gave them away be Because the Saturn ion I'd plastic on the bottom and not metal they could not be used. They shouldn't advertise them for the ions if the can't be installed
1949470
Some are bigger and smaller as they should be (Jupiter is largest), but they are not to scale. They glow great, we made the light on my son's ceiling the "sun" and created an orbit, it's cool. But it's not scientifically accurate, it's fun.
1146554
Ask a better question next time. You didn't state you were seeking answers from only those that have a solar system. Neither Dan M. or I were wrong - we just answered within the context of the item we purchased. Or, better yet, rather than chastise people who offer up their knowledge when asked and are trying to help you, leave it alone and don't say a thing rather than being disrespectful. Talking about people who should not post......
1440011
Yes. We actually moved some around when installing. To do the entire tree would be a pain, just to keep everything in order, but it could be done.
1770495
If I even vaguely understood your question, I would certianly try to answer it ;) Do you mean will the image be right side up when looking at planets and deep space objects? Your question basically asks "....for using on the ground when looking at stuff in the sky?"
1663044
As with all the other responses, mine are installed vertically. Since they mount in from the back side, you'll be able to spin them 360-degrees from the front and align their position before you tighten them down (again from the back).
416685
No, the planets do not rotate. The models that do rotate are quite a bit more expensive due to the mechanism required.
846258
No, not if you don't attach them. Mine is just set in place, so I can angle it toward the sun.
1089016
The ones I bought were new earth boxes, so I really can't answer the question relative to Old Earth boxes. Sorry.
1247397
The planets are more like cardboard, not as thin as paper. They are a pretty good size, about 6 inches across so it's hard for me to say if they would be too big for a Christmas tree. I don't know if you were thinking of using the whirls but they're quite long. Cutting them would be easy, though. The planets are nicely colored and in good detail.
1355673
Yes. One count is one full package with all the planets (in very good detail). They are a pretty good size so even hung from the ceiling they can be seen really well.
1255747
No, and it is a negative. I'm sure one could be installed with minimum effort but i needed storage space and left it as is. Otherwise ever thing is top notch
654929
I don't think so but we just followed the directions when putting it together. :)
1247396
The planets are paper. They might be a bit of a fire hazard added to a xmas tree with lights. They are pretty big so they might look too big on a 6 feet tree.