透镜状星系 NGC 5283 是这张美国宇航局哈勃太空望远镜图像的主题。NGC 5283 包含一个活跃的星系核或 AGN。AGN 是位于星系中心的一个极其明亮的区域，那里存在一个超大质量黑洞。当尘埃和气体落入黑洞时，物质会升温并发出整个电磁波谱的光。
NGC 5283 是一个 Seyfert 星系。大约 10% 的星系是塞弗特星系，它们与其他包含活动星系核的星系不同，因为星系本身清晰可见。其他 AGN 发出的辐射太多，以至于它们的亮度超过或无法观察其宿主星系的结构！
哈勃观测这个星系是对附近活动星系核数据集调查的一部分，该数据集将作为天文学家研究活动星系核物理、黑洞、宿主星系结构等的资源。
图片来源：NASA、ESA、A. Barth（加州大学欧文分校）和 M. Revalski (STScI)；处理：Gladys Kober（美国宇航局/美国天主教大学）
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