Comet tail
Videos
A comet tail is a projection of material from a comet that often becomes visible when illuminated by the Sun, while the comet passes through the inner Solar System. As a comet approaches the Sun, sola
The Great Comet of 2024 with tail (left) and anti-tail visible
Finson-Probstein diagram for comet C/1956 R1 (Arend-Roland) on 28 April 1957 looking down on the orbital plane
Finson-Probstein diagram for comet C/1956 R1 (Arend-Roland) on 28 April 1957 as seen from Earth
Trajectories of heavy dust particles ejected from the comet's nucleus
C/2021 A1 (Leonard)
Videos
C/2021 A1 was a long period comet that was discovered by G. J. Leonard at the Mount Lemmon Observatory on 3 January 2021 when the comet was 5 AU from the Sun. It had a retrograde orbit. The nucleus wa
Comet Leonard imaged near Wedderburn, Australia on 28 December 2021
Wide angle view of C/2021 A1 on December 28, 2021
The comet over Tenerife on 31 December 2021
Comet Leonard on January 2, 2022, one day before perihelion