After upgrading our telescope in Namibia, we took an image of the fascinating dwarf galaxy IC1613 which was visible in the sky all night long. Located 2.3 million light-years away, it contains around 100 million stars and has an irregular shape with few newly formed stars. What makes it special, however, is that we have a clear view of its interior, without large amounts of interfering cosmic dust. And secondly, the presence of several stars that are used to calculate distances in the universe, including the so-called Cepheids. Cepheids are pulsating stars whose brightness fluctuations depend directly on their intrinsic, brightness. By measuring these fluctuations and the apparent brightness, which decreases with distance, it is possible to calculate the distance quite accurately. This is particularly accurate here because there is no dust to weaken the brightness.

IC1613 – Dwarf Galaxy in Cetus

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