Welcome to my Southern Comets website.

Here you will find information, finder charts and images of Comets - past, present and future, plus other observations of interest.

This page was last updated on 19-May-2019

Members of the general public should read this important Guide to Observing Comets

Follow my "Southern Comets Homepage" on Facebook where I will be posting regular updates of my observations.

Current Brightness of Present/Future comets from 35S latitude on 2019 May 20

Very quiet period for comet observing!

29P Schwassmann-Wachmann 12th magnitude outbursts
C/2018 N2 ASASSN
12th magnitude and brightening. Low Northeastern morning sky.
reach 10th magnitude in November 2019.
13th magnitude and fading. South-western evening  sky.
Peaked at magnitude 8.0 in June 2018.
C/2018 A6 Gibbs 13th magnitude and steady. South-western evening  sky.
C/2017 M4 ATLAS
13th magnitude and steady. Overhead at midnight.
13th magnitude and brightening. Very low North-western evening sky.
May reach 6th magnitude in May 2020.
C/2018 W2 Africano
15th magnitude and brightening.
May reach 10th magnitude in September 2019
C/2018 Y1 Iwamoto
13th magnitude and fading. In Solar Conjunction.
Peaked at magnitude 6.5 in mid February 2019.
46P Wirtanen
Peaked at magnitude 3.5-4 in mid December 2018.
iscovered on 2017 May 21 at a distance of 16 AU, almost a record for a comet discovery.
Currently at magnitude 16, implies a very large comet (absolute magnitude of 1)
Perihelion occurs in December 2022 at 1.8AU. It will be distant from the Earth and Sun, thus may only reach magnitude 5 and favour observers in the southern hemisphere.


Latest Images:

C/2018 Y1 Iwamoto and Galaxy NGC2903.
2019 Feb 13 at 14:10UT.
Visual observation: m1= 6.4, Dia=20, DC=4/...8x40mm Binoculars

C/2018 Y1 Iwamoto
2019 Feb 1 at 13:45UT.
Visual observation: m1= 7.9, Dia=10, DC=4...25x100mm B [Michael Mattiazzo, at Stockport, South Australia]

New comet C/2018 Y1 Iwamoto. 2019 January 1.
large aperture photometric V mag =11.5.

Below. Rendezvous of comet 46p Wirtanen with the Pleiades star cluster in Taurus on 2018 December 16.

Total Solar Eclipse photos from Casper Wyoming on 2017 August 21.


Was one of the highlights on the comet observing calendar.
2 comets C/2011 L4 PANSTARRS and C/2012 F6 Lemmon
were simultaneously visible to the unaided eye during the evenings of early March 2013

Comet C/2011 L4 PANSTARRS page
Comet C/2012 F6 Lemmon page

What a privilege it is to observe a great comet. My tally is 4 since I began observing comets in 1986.
Click on links for additional photos and information.

C/1996 B2 Hyakutake (Great comet of 1996)
C/1995 O1 Hale-Bopp (Great comet of 1997)
C/2006 P1 McNaught
(Great comet of 2007)
C/2011 W3 Lovejoy (Great comet of 2011)


Also visit my alternate website at http://www.yp-connect.net/~mmatti/
which consists of additional photos and observations of comets personally witnessed since 1996.

A history of my comet observations since 1986 can be downloaded here

Further comet information can be found at:
Comet Watch
Facebook group

Skyhound. A website for comet charts and information: http://cometchasing.skyhound.com/

Weekly comet information by Seiichi Yoshida http://www.aerith.net/comet/weekly/current.html
In my opinion the best website for comet information and light curve predictions.

Send comments to Michael Mattiazzo : mmatti at westnet dot com dot au