<transcript><audio_22> tanto para líneas de emisión como líneas de absorción esto que tenemos ahí del lado derecho es una imagen en muy alta resolución de la superficie del sol si éste la podemos</transcript><transcript><audio_23> en varias cosas dependiendo de su estructura tenemos filamentos que son estas cositas oscuras que vemos tenemos algo que se llaman yo no sabía, yo les decía plagas pero no, son playas</transcript><caption><image_24>The image shows a man standing in front of a projector screen with a presentation on it. The presentation is in Spanish and appears to be related to astronomy. The screen has a title at the top that reads "Cómo observar estrelas variables?" which translates to "What is the observatory variables?" in English. Below the title, there is an image of a map of the world with a line graph and a bar graph. The map is in yellow color and shows the location of the sun and the horizon. The man is standing in a room with a gray wall and there are two circular decorations on either side of the screen.</caption><transcript><audio_25> estas estructuras brillantes que se ven en la superficie. Del lado izquierdo tenemos el espectro del Sol, pero tenemos el espectro del Sol en una línea de emisión que es la línea de Calcio 2.</transcript><transcript><audio_26> se forma en la cromosfera. La cromosfera es la capa, una capa superior de la estrella. Entonces, esa es parte de la variabilidad. Esto solamente lo podemos hacer en el Sol porque tenemos la suficiente radiación</transcript><transcript><audio_27> Entonces, en la línea de abajo, en esta línea de abajo, nosotros tenemos la emisión del sol, se le llama el sol quieto, es decir,</transcript><transcript><audio_28> no tenemos ninguna estructura, ¿sí? Y la línea que tenemos arriba es la línea en una playa, en una estructura brillante, entonces...</transcript><transcript><audio_29> esta línea de calcio 2 o esta línea cromosférica conforme nosotros nos movemos a lo largo del disco solar. Eso también es parte de la variabilidad a través de espectroscopía. El problema con la</transcript> line profile changes for both emission lines and absorption lines what we have there on the side  Right, it is a very high resolution image of the surface of the sun. Yes, we can classify it into several things depending on its structure. We have filaments that are these little dark things that we see. We have what they call. I didn't know. I called them pests, but  They are not beaches, there are beaches in the sun and they are these bright structures that are seen on the on the left side. We have this the spectrum of the sun, but we have the spectrum of the sun in an emission line, which is the calcium line 2. This line is  form in the chromosphere the chromosphere is the upper layer of the star so that is part of the variability this we can only do in the sun because we have enough spatial resolution to do it then on the on this line below we  We have the emission of the sun, it is called the still sun, that is, there is this part of the sun where we do not have any structure, yes, and the line that we have above is the line on a beach in a bright structure, so we can see how this calcium line changes 2  or this chromospherical line as we move along the solar disk, if this is also part of the variability through spectroscopy, the problem with
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