==
依據COBS的模擬資料 2月1日的亮度可達到5.4等
==
==
1月7日更新:
依據COBS的模擬資料 2月1日的亮度可達到5.4等
==
彗星2022 E3 北冕 約 3:30後起
在2023年的1月12日 近日 , 2月1 到近地 ,亮度可能 5~6等 (一說最亮 4.7 )
https://theskylive.com/c2022e3-infohttps://www.nasachina.cn/apod/23605.html==
ZTF0Nf7 彗星 C/2022 E3 (ZTF)
==
ZTF0Nf7 could be interesting. Not so sure about that naked eye visibility yet though, but for now I'm getting a very promising mag. ~5.5 at closest approach (~0.34 AU from earth). Early brightness estimates could go both ways later on, though.
https://www.facebook.com/photo/?fbid=10216158409312791&set=pcb.1628785360625253https://www.facebook.com/photo?fbid=10216158414272915&set=pcb.1628785360625253 naked-eye January 2023 comet.
MPEC F13: C/2022 E3 (ZTF) (=ZTF0Nf7), near-polar quasi-parabolic comet
62 obs. 2022-03-02 - 2022-03-21
q = 1.11 ± 0.01 au @ 2023-01-12 ± 2 days
e = 0.9992 ± 0.0073 ; i = 109.2 ± 0.3°
E-MOID = 0.22 au ; J-MOID = 1.73 au ; Saturn-MOID = 0.81 au
Current V = 17.1
It will be 0.28 ± 0.06 au away from the Earth on 2023-02-01 ± 3 days