Uploaded May 2015 | Updated September 2026, 12 hours ago

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This shows the largest stars that we know of today in the program Space Engine

1. VY Canis Majoris ~ 613,672,403 miles in radius
2. Westerlund 1-26 ~ 621,371,192 miles in radius
3. WOH G64 also ~ 621,371,192 miles in radius
4. PZ Cassiopeiae ~ 514,527,440 miles in radius
5. NML Cygni ~ 713,070,046 miles in radius
6. UY Scuti the largest known star in the galaxy ~ 745,645,431 miles in radius
There are more stars that have been discovered that are massive such as VX Sagittarii, Betelgeuse, and VV Cephei A.
Just to put UY Scuti in perspective if it was our sun it would reach all the way out to Saturn's orbit.

Link to the "game" Space Engine note: it is made by ONE person
en.spaceengine.org