If you are searching for a "solid feature" or a "Virtual Telescope Free Download," you are likely looking for tools to explore space digitally.
Are you trying to happening right now? (Check the Virtual Telescope Project schedule) (I can recommend tools like FreeCAD or Onshape ) Why did you build that feature? - Mind the Product Virtual telescope Free Download
Are you looking to from your backyard? (Try Stellarium ) If you are searching for a "solid feature"
These software packages are widely considered the industry standard for home astronomy. Virtual telescope Free Download