Copyright:
Daniel Korona
中文翻譯:
小朋友們，最近在天空中出現了一顆新的彗星，它被稱為C/2025 R2 (SWAN)，還有一個可愛的暱稱叫做SWAN25B！這顆彗星在太陽的方向出現，變得越來越明亮，有一天我們可能可以用手機看到它哦！彗星的亮度很難預測，但一般來說，當它們靠近地球的時候，會變得更亮。SWAN25B大約在10月19日的時候會離我們的地球有四分之一的距離。天上的觀星者們也會期待在10月5日看到由SWAN25B引發的流星雨，因為那時地球正好會經過彗星的軌道。這顆意外的亮彗星是由一位業餘天文學家在NASA的SOHO衛星上用SWAN儀器捕捉到的。現在這顆彗星主要在南半球可見，但它正在慢慢向北移動。最近在墨西哥的薩卡特卡斯，三天前有人拍到了它在黃昏時分的美麗身影，懸浮在西方的地平線上。
原文:
A newly discovered comet is already visible with binoculars. The comet, C/2025 R2 (SWAN) and nicknamed SWAN25B, is brightening significantly as it emerges from the Sun’s direction and might soon become visible on your smartphone — if not your eyes. Although the brightnesses of comets are notoriously hard to predict, many comets appear brighter as they approach the Earth, with SWAN25B reaching only a quarter of the Earth-Sun distance near October 19. Nighttime skygazers will also be watching for a SWAN25B-spawned meteor shower around October 5 when our Earth passes through the plane of the comet’s orbit. The unexpectedly bright comet was discovered by an amateur astronomer in images of the SWAN instrument on NASA’s SOHO satellite. The comet is currently best observed in southern skies but is slowly moving north. The featured image was captured at sunset three days ago just above the western horizon in Zacatecas, Mexico.
來源:NASA每日圖片
