You can now buy the recently released book, Fall of a Thousand Suns: How Near Misses and Comet Impacts affected the Religious Beliefs of our Ancestors. It is available through iBooks and Amazon.


This website only lists information on modern-day comets and meteor showers. The book, however, thoroughly investigates how specific ancient impacts and near misses changed religious beliefs around the world.

Brightest Comets in 20th Century

Comet Ikeya-Seki


Brightest Comets from 1935 to 1999

The International Comet Quarterly (ICQ) "is a non-profit scientific journal [ISSN 0736-6922] devoted to the observation, news, and study of comets; it serves as a link between amateur and professional astronomers in the exchange of useful observations (following a standardized format) and news regarding all comets." Recently, it compiled a list of the brightest comets in the 20th century...or at least dating back to 1935. These comets are ranked below in order of apparent magnitude.


-10.0 C/1965 S1 Comet Ikeya–Seki
-3.0 C/1975 V1 Comet West
-3.0 C/1947 X1 Southern Comet
-1.0 C/1948 V1 Eclipse Comet
-0.8 C/1995 O1 Comet Hale-Bopp
-0.5 C/1956 R1 Comet Arend-Roland
0 C/1996 B2 Comet Hyakutake
0 C/1969 Y1 Comet Bennett
0 C/1973 E1 Comet Kohoutek
0 C/1962 C1 Comet Seki-Lines
0.5 C/1998 J1 Comet SOHO
1.0 C/1957 P1 Comet Mrkos
1.0 C/1998 J1 Comet White-Ortiz-Bolelli
1.7 C/1983 H1 Comet IRAS-Araki-Alcock
2.0 C/1941 B2 Comet de Kock-Paraskevopoulos
2.4 C/1982 U1 Halley's Comet
2.4 17P Comet Holmes
2.7 C/1964 N1 Comet Ikeya
2.8 C/1989 W1 Comet Aarseth-Brewington
2.8 C/1962 A1 Comet Ikeya
3.0 C/2001 A2 Comet LINEAR
3.3 C/1936 K1 Comet Peltier
3.5 C/2004 Q2 Comet Machholz
3.5 C/1942 X1 Comet Whipple-Fedtke-Tevzadze
3.5 C/1940 R2 Comet Cunningham
3.5 C/1939 H1 Comet Jurlof-Achmarof-Hassel
3.5 C/1959 Y1 Comet Burnham
3.5 C/1969 T1 Comet Tago-Sato-Kosaka
3.5 C/1980 Y1 Comet Bradfield
3.5 C/1961 O1 Comet Wilson-Hubbard
3.5 C/1955 L1 Comet Mrkos
3.6 C/1990 K1 Comet Levy
3.7 C/1975 N1 Comet Kobayashi-Berger-Milon
3.9 C/1974 C1 Comet Bradfield
3.9 C/1937 N1 Comet Finsler


This website also contains a list of the brightest comets in the 21st century.



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