Comet discoverers & Comet discoveries by amateurs

2020 - now

Last update:  18. January 2020

Discoveries from 1978 to 1999 Discoveries from 2000 to 2009
Discoveries 2010 to 2019

This page was initially created by Juan José González - José Fernández, written in Spain and can be found at

I used an automatic translation into English and tried to correct it into readable English. Please notice that English is not my native language. Fell free sending me corrections of any kind.

I also used information from the website of Maik Meyer. Giuseppe Pappa (giuseppe.pappa->> added information to the early discoverystories.


Masuyuki IwamotoC/2020 A2 (Iwamoto)

This object was reported on 2020 Jan. 9 UT as a possible comet by M. Iwamoto (872) and it was placed on the PCCP.
It was discovered on two CCD frames taken on Jan. 8.86 UT with a 10-cm Pentax 400-mm-f.l. f/4.0 lens and a Canon EOS 6D camera.

On Jan. 13, G. Borisov (L51) reported this object as having a diffuse 40" coma. Additional reports of cometary features MPEC 2020-A132.

CBET no. 4714, issued on 2020, Jan. 13th. announced the discovery of a new comet. It's the 4th. comet discovery of Masuyuki Iwamoto and 3 within 18 months.

Mr. Masuyuki Iwamoto
Copyrights: Masuyuki Iwamoto + Hoshinavi

Copyright: Michael Jäger, 14.01.2020


Edgar Wilson Award

  Professional Surveys

Image: LINEAR Program

Siding Spring: Robert McNaught (left) and Gordon Garradd (right) in front of the Uppsala dome and its office (right) in 2003.