http://d81.blog.jp/archives/69482934.htmlhttps://www.facebook.com/Comets-and-Asteroids-140234731687/https://twitter.com/KenichiKadota/status/838440976574103552twitter 有圖
by Kenichi Kadota from Ageo, Japan on 2017-Mar-03 magnitude m1 = 14.0 with coma diameter 0.8 arc minutes.
http://www.aerith.net/comet/catalog/2017E1/2017E1.html不是剛發現 ?
現在 亮度就知道 曲線如何了
http://remanzacco.blogspot.tw/2017/03/new-comet-c2017-e1-borisov.htmlM.P.E.C. 2017-E42 assigns the following preliminary parabolic orbital elements to comet C/2017 E1: T 2017 Apr. 9.8; e= 1.0; Peri. = 151.90; q = 0.90; Incl.= 14.54
CBET nr. 4369, issued on 2017, March 04, announces the discovery of a comet (magnitude ~17) by Gennadii Vladimirovich Borisov on three unfiltered 120-s exposures obtained on Mar. 1.10 UT with a 0.4-m f/2.3 astrograph at the "Mobil Astronomical Robotics Genon" Observatory (MARGO) near Nauchnij. The new comet has been designated C/2017 E1 (Borisov).