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.

Comets in 2015

Between one hundred billion and two trillion comets are thought to exist in our solar system. As of September 23, 2026, 4,077 comets have been observed and named. Let's take a closer look at some comets that may be visible to the naked eye in 2015 or are otherwise newsworthy.

		Comet Pons-Winnecke (Jan 30, 2015)		Pons-Winnecke is a Near Earth Comet (NEC). In 1927, Pons-Winnecke was .0394 AU from Earth. That's roughly fifteen times the distance between the Earth and the Moon. It will be the first comet to reach perihelion in 2015.

		Comet d'Arrest (Mar 2, 2015)		This comet was discovered and recorded by Heinrich Ludwig d' Arrest in Leipzig, Germany on June 28, 1851. It was the sixth comet to have its periodic orbit determined and therefore received the formal name of 6D/d'Arrest. This comet only has an orbital period of 6.54 years, so we won't have to wait too long for this comet after 2015.

		Comet Churyumov-Grasimenko (Aug 13, 2015)		In November 2014, The European Space Agency plans to release a lander, called Philae, from its Rosetta Spacecraft. The lander will attach to the surface of Comet 67P/Churyumov-Gerasimenko. It will study the comet before, during, and after its closet approach to the Sun on August 13, 2015.

		Soho Comets (Various perihelion dates in 2015)		Dozens of tiny comets will closely orbit the Sun in 2015. The vast majority will die in its corona or on its surface. Only space observatories using coronagraphs, like SOHO, will be able to observe these comets. The general public has access to SOHO's movies and images, and can attempt to discover comets in 2015.

A List of all Comets that will reach Perihelion in 2015

All comets no matter how faint, provided they experience their perihelion in 2015, are listed below alongside the day of discovery, next perihelion, orbital period, diameter and apparent magnitude. Each column is sortable. Simply click on the arrows at the top of each column.

Formal Name	Informal Name	Discovery	Next Perihelion	Orbit (yrs)	Diameter
C/2013 G9	Comet Tenagra	2013/04/15	2015/01/13
201P/LONEOS	Comet LONEOS	2001/08/09	2015/01/14	6.47
D/1886 K1	Comet Brooks	1886/05/25	2015/01/21	5.44
7P/Pons-Winnecke	Comet Pons-Winnecke	1819/06/12	2015/01/30	6.37	5.2 km
P/2005 Q4	Comet LINEAR	2005/08/31	2015/02/16
6P/d'Arrest	Comet d'Arrest	1851/06/28	2015/03/02	6.54	3.2 km
D/1884 O1	Comet Barnard	1884/07/24	2015/03/13	5.38
P/2008 WZ96	Comet LINEAR	2008/11/30	2015/03/25
C/2012 F3	Comet PANSTARRS	2008/11/30	2015/04/01
88P/Howell	Comet Howell	1981/08/29	2015/04/06	5.5	4.4 km
42P/Neujmin 3	Comet Neujmin 3	1929/08/02	2015/04/08	10.71	2.2 km
P/2006 S6	Comet Hill	2006/08/29	2015/04/18
P/1997 T3	Comet Lagerkvist-Carsenty	1997/10/05	2015/05/08
C/2008 QP20	Comet LINEAR-Hill	2003/04/24	2015/05/17
57P/duToit-Neujmin-Delporte	Comet duToit-Neujmin-Delporte	1941/07/18	2015/05/22	6.42
P/2009 Q4	Comet Boattini	2009/08/26	2015/06/13
P/2010 B2	Comet WISE	2010/01/22	2015/06/13
P/2012 F5	Comet Gibbs	2009/09/17	2015/06/13
P/2009 WX51	Comet Catalina	2009/11/22	2015/06/25
P/2008 S1	Comet Catalina-McNaught	2008/05/02	2015/07/01
P/2004 FY140	Comet LINEAR	2004/03/27	2015/07/24
P/2004 R1	Comet McNaught	2004/09/02	2015/08/12
P/2010 K2	Comet WISE	2010/05/27	2015/08/13
P/2009 L2	Comet Yang-Gao	2009/06/15	2015/08/15
P/1999 R1	Comet SOHO	1991/09/04	2015/09/04
P/1999 J6	Comet SOHO	1999/05/10	2015/09/26
P/2001 H5	Comet NEAT	2001/03/20	2015/10/21
P/2007 V2	Comet Hill	2007/10/14	2015/10/23
P/1994 N2	Comet McNaught-Hartley	1994/07/05	2015/10/24
22P/Kopff	Comet Kopff	1906/08/22	2015/10/25	6.45	3.0 km
P/2005 RV25	Comet LONEOS-Christensen	2005/09/11	2015/10/28
P/2008 Y2	Comet Gibbs	2008/12/01	2015/11/06
10P/Tempel 2	Comet Tempel 2	1873/07/03	2015/11/14	5.38	10.6 km
P/2010 R2	Comet La Sagra	2010/08/12	2015/11/30
P/2003 WC7	Comet LINEAR-Catalina	2003/11/18	2015/12/04
P/2002 Q1	Comet Van Ness	2002/08/17	2015/12/10
P/1998 QP54	Comet LONEOS-Tucker	1998/08/02	2015/12/26
C/2013 C2	Comet Tenagra	2013/02/14	2015/08/31
C/1999 U2	Comet SOHO	1999/10/24	2015/12/03

Related Links: