Copyright:
Yuri Beletsky
(Las Campanas Observatory,
Carnegie Institution)
原文:
A comet has brightened quickly and unexpectedly. Discovered last year, Comet C/2014 Q1 (PanSTARRS) is expected to be visible now for a few days to the unaided eye, just after sunset, from some locations. The comet rounded the Sun on July 6 and apparently has shed quite a bit of gas and dust. Today it is now as close as it will ever get to the Earth, which is another factor in its recent great apparent brightness and the large angular extent of its tails. In the featured image taken two days ago, Comet PanSTARRS is seen sporting a short white dust tail fading to the right, and a long blue ion tail pointing away from the recently set Sun. A crescent moon dominates the image center. Tomorrow, Comet PannSTARRS will pass only 7 degrees away from a bright Jupiter, with even brighter Venus nearby. Due to its proximity to the Sun, the comet and its tails may best be seen in the sunset din with binoculars or cameras using long-duration exposures. APOD Editor to Speak: Saturday, August 8 at Keweenaw Science & Engineering Festival
中文翻譯:
🌌✨ 一顆彗星突然變得明亮，令人驚嘆！在去年發現的彗星C/2014 Q1 (PanSTARRS) 現在預計在幾天內可在日落後用肉眼觀賞到，特別是在某些地區。這顆彗星於7月6日繞過太陽，似乎已經釋放出大量氣體和塵埃。目前，彗星距離地球最近，因此它的亮度和尾巴的角度看起來更大。
在兩天前拍攝的圖片中，可以清晰地看到彗星PanSTARRS的短白色塵埃尾巴向右漸變，還有一條長長的藍色離子尾巴指向剛剛落下的太陽。明天，彗星將與明亮的木星只有7度的距離，附近有更亮的金星。
由於彗星與太陽的接近，最佳觀賞這顆彗星及其尾巴的時刻是日落時分，可以使用雙筒望遠鏡或長時間曝光的相機來捕捉它們的美麗。 📷✨
#CometPanSTARRS #彗星 #Astronomy #天文學 #Stargazing #肉眼可見 #希望觀賞 #KeweenawScienceFestival #天文活動 #太空奇觀 🌠🌜
來源:NASA每日圖片
