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Stars in the Milky Way.

400,900

Stars classified as variable because their brightness fluctuates, due to pulsation or periodical eclipse by another celestial body.

7

Super-rare Triple Mode “high amplitude delta Scuti” variable stars in our galaxy, which pulsate in three directions at once.

1

Triple Mode “high amplitude delta Scuti” star discovered by an American high-school student. Formally announced in February, the star is 7,000 light years away and pulsates every 2.5 hours.