rocketstem.org
Comet of the Week: PANSTARRS C/2017 T2
Perihelion: 2020 May 4.95, q = 1.615 AU After devoting my “Comet of the Week” last week to the first comet I ever observed, it seems appropriate to devote this week’s “Comet of the Week” to the brightest comet that is currently visible in our nighttime skies, and which is easily accessible for observations, at ...
Alan Hale