Josh, consider an oscillator producing sound in an audio spectrum which relates to the EM spectrum of light from the Moon, planets, stars, etc. That can be a way to help "visualize" with sound for those who cannot see. A musical instrument should be able to produce the notes and I think you are familiar with such. For a tactile approach, consider a fuzzy ball for something close and that appears large, like the Moon and ping pong balls for planets or marbles and mustard seeds for farther away objects such as stars.
Josh, consider an oscillator producing sound in an audio spectrum which relates to the EM spectrum of light from the Moon, planets, stars, etc. That can be a way to help "visualize" with sound for those who cannot see. A musical instrument should be able to produce the notes and I think you are familiar with such. For a tactile approach, consider a fuzzy ball for something close and that appears large, like the Moon and ping pong balls for planets or marbles and mustard seeds for farther away objects such as stars.