泛星和行星
(原标题: PanSTARRS and Planets)
2026-04-18
浏览次数: 4729
在日出前的东方地平线附近，彗星C/2025 R3 PanSTARRS正变得越来越亮。在双筒望远镜和小型望远镜中，这颗彗星可能就在肉眼可见的边缘。虽然肉眼看不太清楚，但在这张拍摄于4月16日的相机图像中，PanSTARRS仍然很容易被发现。从一座火山山顶俯瞰法国留尼汪岛，这颗彗星与肉眼可见的火星、水星和较暗的海王星共享东部黎明前的天空。土星隐藏在低云岸的后面，而低云岸并不能完全隐藏一个古老的新月。对于北半球的彗星观测者来说，这是一个很好的周末，可以在日出前一个小时左右捕捉到PanSTARRS，因为这颗彗星在4月19日接近近日点时变得越来越亮。4月26日，这颗彗星最接近我们美丽的星球，但到那时，在太阳的眩光下很难看到它。在4月底和5月初，从南半球可以很好地看到这颗彗星。
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Near the eastern horizon before sunrise, Comet C/2025 R3 PanSTARRS is getting brighter. Readily visible in binoculars and small telescopes, the comet may be just on the verge of naked-eye visibility from dark sky sites. Though it was not quite apparent to the eye, PanSTARRS is still easy to spot in this camera image taken on April 16. In the view from a volcanic peak overlooking France's Reunion Island, planet Earth, the comet shares eastern predawn skies with naked-eye planets Mars and Mercury and fainter Neptune. Saturn is hiding behind the low cloudbank that doesn't quite hide an old crescent Moon. This is a good weekend for northern hemisphere comet watchers to try to catch PanSTARRS an hour or so before sunrise, as the comet grows brighter approaching its perihelion on April 19. On April 26 the comet makes its closest approach to our fair planet but by then will be difficult to see in the solar glare. Good views of this comet PanSTARRS in late April and early May will be from the southern hemisphere.
© Luc Perrot