How was the effect of Alderaan blowing up accomplished?

How was the effect of Alderaan blowing up accomplished? - Group of People Wearing Academic Dress

A special effect sequence in the original Star Wars (1977) shows the planet Alderaan being blown up by the Death Star (frame shown below). Considering that this was the pre-digital era, I thought the explosion was really well done. How did they do it?

Alderaan Blown Up (1977)

Obviously some pyrotechnics were used, but what were they to make such a cool looking explosion?



Best Answer

You can see the original, unaltered clip here:

If you're interested in all the special effects, there's a great documentary called Empire Of Dreams.

It was basically comprised of a scale model which was blown up, against a blue screen so the space background could be added later.




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How the Galaxy Reacted to Alderaan's Destruction




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