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| Estelada blava | |
| Use | Civil flag |
|---|---|
| Proportion | 2:3 |
| Design | Nine horizontal alternating equal stripes of yellow and red, with a white five-pointed star on a blue chevron. |
| Designed by | Vicenç Albert Ballester |
 Estelada vermella | |
| Use | Civil flag |
| Adopted | 1972 |
| Design | Nine horizontal alternating equal stripes of yellow and red, with a red five-pointed star on a yellow chevron. |
The Estelada (Eastern Calatan: [əstəˈlaðə]; pl. Estelades; full name Senyera estelada, lit. 'starred flag' or 'lone star flag', from estel, "star") is an unofficial flag typically flown by Catalan independence supporters to express their support for either an independent Catalonia or independent Països Catalans (Catalan Lands, the territories in which Catalan is traditionally spoken). The design of the Estelada comprises the red-and-yellow bars of the Senyera, with the addition of a five-pointed star in a triangle at the hoist.
The use of this flag as a protest symbol within Catalan nationalism has become more notable since the 1970s Spanish transition to democracy. The self-proclaimed Catalan Republic of 2017 did not adopt the Estelada as its national flag, instead using the regular Senyera.