<transcript><audio_6> aquella estrella que exhibe variaciones en su luminosidad a lo largo del tiempo. Nosotros vamos a tener dos tipos de estrellas variables, estrellas variables intrínsecas y estrellas variables extrínsecas.</transcript><caption><image_7>The image is a screenshot of a presentation slide on a computer screen. The slide is in Spanish and has a green background with white text. The title of the slide reads "Una estrella variable en aqua que ébibe variociones en tu luminosidad a la largo del tiempo" which translates to "What is the difference between a large and a small amount of time". Below the title, there is a subtitle in Spanish that explains that the image is related to the concept of a large number of different types of data. 

The slide appears to be in a room with a gray wall and a projector screen in the background. There is a person sitting at a desk in front of the screen, looking at the slide.</caption><transcript><audio_8> son aquellas que varían por procesos internos en la estrella una variable extrínseca es aquella que su variabilidad pues se debe</transcript><caption><image_9>The image shows a man standing in front of a large screen with a presentation on it. The presentation is in Spanish and appears to be a presentation slide. The screen has a green background and white text. The text on the screen is in both English and Spanish. The man is wearing a suit and tie and is standing in a room with a whiteboard and a projector screen in the background.</caption><transcript><audio_10> No sé si alguno de ustedes haya trabajado en algo de astrofísica.</transcript><transcript><audio_11> Lo único que tenemos de las estrellas es su luz, entonces acerca de la luz tenemos que hacer básicamente todo, o sea, tenemos que sacar su edad, su tamaño, su masa, su densidad, en qué tamaño,</transcript><transcript><audio_12> todas las cosas, todo, todo, todo lo que podemos conocer de una estrella, lo tenemos que saber acerca de su luz, entonces tenemos que aprovecharla así como que al máximo, y básicamente tenemos dos formas,</transcript><caption><image_13>The image is a screenshot of a presentation slide on a computer screen. The slide is titled "Cómo observar estrellas variables?" which translates to "How to observe variables variables?" in English. 

The slide has a green background with white text. On the right side of the slide, there is a map of the world with black dots scattered across it. The map appears to be a scatter plot, with different colors representing different variables. The text on the slide explains that the viewer can observe the variables in the map and how they interact with them.</caption><transcript><audio_14> Una que es a través de fotometría, que es por imagen directa de un CCD, integramos su luminosidad, observamos cómo varía a lo largo del tiempo y es</transcript> A variable star is a star that exhibits variations in its luminosity over time. We are going to have two types of variable stars, intrinsic variable stars and extrinsic variable stars. Intrinsic ones are those that vary due to internal processes in the star. If an extrinsic variable is one whose variability is due how we observe variable stars, I don't know if  Any of you who have worked in some astronomy well basically it is the only thing we have about the stars of their light yes then about the light well we have to do basically everything no that is we have to take city its size its mass its  density in what evolutionary stage is its metallicity all the things everything everything we can know about a star we have to know about its light so we have to take advantage of it as well as make the most of it and basically we have two ways of observing variable stars one  which is through photometry which is by direct image of a ccd we integrate its luminosity we observe how it varies over time and that
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