河中的星系：ngc1300和ngc1297
(原标题: Galaxies in the River: NGC 1300 and NGC 1297)
2026-03-21
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螺旋星系NGC 1300和椭圆星系NGC 1297是位于南仙女座（河）的河岸上的星系。它们相距7000万光年甚至更远，都是仙女座星系团的成员。大约10万光年宽，在这张清晰的星系群照片的左下角，NGC 1300正面对着一个突出的中央棒状结构和巨大的旋臂。像其他螺旋星系一样，包括我们自己的棒旋银河系，ngc1300被认为有一个超大质量的中心黑洞。NGC 1297的外观与之形成对比，距离稍远，它是靠近画面顶部的一个大致球形的大型椭圆星系。由于很少有活跃的恒星形成，椭圆星系是由较老的恒星群组成的，很可能是多次碰撞和与螺旋星系合并的结果。
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Spiral NGC 1300 and elliptical NGC 1297 are galaxies that lie on the banks of the southern constellation Eridanus (The River). At 70 million light-years distant or more, both are members of the Eridanus Galaxy Cluster. About 100,000 light-years across, at lower left in this sharp, galaxy group photo NGC 1300 is seen face-on with a prominent central bar and grand, sweeping spiral arms. Like other spiral galaxies, including our own barred spiral Milky Way Galaxy, NGC 1300 is thought to have a supermassive central black hole. A contrast in appearance and slightly more distant, NGC 1297 is the roughly spherical large elliptical galaxy near the top of the frame. With little active star formation, elliptical galaxies are composed of older populations of stars and are likely he result of multiple collisions and mergers with spirals.
© Dietmar Hager