http://www.aerith.net/comet/catalog/2020A2/2020A2.html
https://www.skyandtelescope.com/observing/celestial-objects-to-watch/comets/the-latest-on-betelgeuse-plus-a-bright-supernova-and-new-comet-iwamoto/情人節 perhaps reaching magnitude 12.5
C/2020 A2 is Iwamoto's fourth comet discovery. Perihelion occurred on January 8th with closest approach to the Earth on February 22nd at 0.92 a.u. The comet will brighten slightly in the coming weeks, perhaps reaching magnitude 12.5 by Valentine's Day, before fading. Watch for it to become circumpolar for mid-latitude skywatchers around the middle of February. What other surprises await by that date I wonder?
會員專區 
