tri-color-sunhttps://www.astronomy.com/picture-of-the-day/photo/tri-color-sun/Tri-color Sun | Astronomy MagazineSalvo Lauricella from Italy This set of images shows the Sun’s Active Region 13477, imaged in white light (bottom) and two narrowband filters: Calcium-K (top) and Hydrogen-alpha (middle).https://www.astronomy.com/wp-content/uploads/sites/2/2023/11/AR13477_CAK_HA_WL_20231106.jpg?fit=1568%2C2981InStockUSD1.001.00articleASY2023-11-08 14:11:192023-11-08 09:54:49135713
This set of images shows the Sun’s Active Region 13477, imaged in white light (bottom) and two narrowband filters: Calcium-K (top) and Hydrogen-alpha (middle).