彗星R3 （PanSTARRS）变亮
(原标题: Comet R3 (PanSTARRS) Brightens)
2026-04-12
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R3彗星正在迅速变亮——它能存活下来吗？自去年发现以来，C/2025 R3 （PanSTARRS）一直在缓慢地变亮并延伸一条离子尾巴。这个脱落的脏冰山在本月上演了最好的天空表演，因为它离太阳（4月19日）和地球（4月25日）最近。这张特色图片显示，R3的尾巴已经延伸了10度以上，这张照片是两天前在瑞士锡安拍摄的，左边是比奇霍恩大山。彗星R3将在四月中旬日出之前可见。虽然任何彗星未来的亮度都很难预测，但R3的亮度已经使它成为一颗很好的相机彗星，它可能在下周肉眼就能看到。R3彗星的物理未来也是未知的，因为就像本月早些时候的A1彗星（MAPS）一样，它可能在经过离太阳最近的地方时解体。或者它可能活到离开太阳系。成长画廊：2026年的彗星R3
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Comet R3 is brightening rapidly -- will it survive? C/2025 R3 (PanSTARRS) has been slowly brightening and extending an ion tail since its discovery last year. This shedding mountain of dirty ice puts on its best sky show this month, though, because it passes its closest to both the Sun (April 19) and the Earth (April 25). The featured image, showing R3 already sporting a tail extending over 10 degrees, was taken two nights ago from Sion, Switzerland with the big mountain Bietschhorn on the left. Comet R3 will be visible during mid-April before sunrise. Although the future brightness of any comet is hard to predict, the brightness of R3 makes it already a good camera comet and it may become visible to the unaided eye in the next week. Comet R3's physical future is also unknown because, like Comet A1 (MAPS) earlier this month, it may disintegrate when it passes its closest to the Sun. Or it may live to leave the Solar System. Growing Gallery: Comet R3 in 2026
© José Rodrigues