親子觀星會

小行星

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/27607


While there is a lot of attention being given to C/2018 Y1 (and rightly so) right now, it turns out that there is another object also announced yesterday that might prove interesting. 2018 YW is in a distinctly cometary orbit (e = 0.77, P = 7.5 years) and passes perihelion (q = 0.89 AU) near the end of February; while inbound to perihelion it passes 0.33 AU from Earth on January 19. It might be worth keeping an eye on it in case it becomes active

https://minorplanetcenter.net/mpec/K18/K18Y51.html