Clouds also form in atmospheres of planets that orbit other stars than our Sun, in so-called extrasolar planets or exoplanets. Exoplanet atmospheres can be chemically extremely rich. Exoplanet clouds are therefor made of a mix of materials that changes throughout the atmosphere. They affect the atmospheres through element depletion and through absorption and scattering, hence, they have a profound impact on the atmosphere’s energy budget. While astronomical observations point us to the presence of extrasolar clouds and make first suggestions on particle sizes and material compositions, we require fundamental and complex modelling work to merge the individual observations into a coherent picture. Part of this is to develop an understanding for cloud formation in non-terrestrial environments. 1 ar X iv :1 81 2. 03 79 3v 1 [ as tr oph .E P] 1 0 D ec 2 01 8

中文翻译：

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系外行星云

云也会在围绕太阳以外的其他恒星运行的行星的大气中形成，即所谓的太阳系外行星或系外行星。系外行星的大气在化学上可能非常丰富。因此，系外行星云是由在整个大气层中变化的混合材料制成的。它们通过元素消耗以及吸收和散射影响大气，因此，它们对大气的能量收支有着深远的影响。虽然天文观测向我们指出了太阳系外云的存在，并对粒子大小和物质成分提出了初步建议，但我们需要进行基础和复杂的建模工作，才能将各个观测结果合并成一幅连贯的图片。这部分是为了加深对非陆地环境中云形成的理解。1 ar X iv :1 81 2. 03 79 3v 1 [作为 tr .