The Solar System


C/2015 V2 (Johnson)

C/2015 V2 (Johnson) is a hyperbolic comet discovered on 3 November 2015 by Jess Johnson (Catalina Sky Survey) at an apparent magnitude of 17.1 using a 0.68-meter Schmidt–Cassegrain telescope. Its incoming orbit had a Semimajor Axis of 59,200 AU (0.94 light years), but will have a hyperbolic orbit after leaving the solar system, with an eccentricity of 1.0009. The comet was to be seen with binoculars in late May 2017 in the Northern Hemisphere. This picture was taken in 2017 (April 20th).

(Source: Wikipedia)


C/2018 46P (Wirtanen)

C/2018 46P (Wirtanen) is a small short-period comet with a current orbital period of 5.4 years. It belongs to the Jupiter family of comets, all of which have aphelia between 5 and 6 AU. Its diameter is estimated at 1.2 km. 46P/Wirtanen was discovered photographically on January 17, 1948, by the American astronomer Carl A. Wirtanen. The plate was exposed on January 15 during a stellar proper motion survey for the Lick Observatory. Due to a limited number of initial observations, it took more than a year to recognize this object as a short-period comet. This picture was taken on December 15th, 2018 (20:41-21:27 MEZ).

(Source: Wikipedia)