The following table gives a summary of the comets brighter than 16 mag, which were observed by members of the German Comet Section.

The maximum brightness of comets brighter than 10.0 mag is given with an accuracy of 0.1 mag, that of fainter comets with an accuracy of 0.5 mag. The maximum coma diameter is given with an accuracy of 0.1' for comae less than 1', with an accuracy of 0.5' for comae between 1' and 5' and with an accuracy of 1' for larger comae.

Designation	discovered	T	q [AU]	m_max	Coma [']	FGK
C/2006 S3 (LONEOS)	Sep 19, 2006	Apr 16, 2012	5.13	13.5	1.5	V, C
C/2008 FK75 (Lemmon-Siding Spring)	Mar 31, 2008	Sep 29, 2010	4.51	15.5	1.0	C
C/2009 K5 (McNaught)	May 27, 2009	Apr 30, 2010	1.42	13.0	1.5	C
C/2009 P1 (Garradd)	Aug 13, 2009	Dec 23, 2011	1.55	7.2	12	V, F, C
C/2009 Y1 (Catalina)	Dec 17, 2009	Feb 28, 2011	2.52	13.5	1.0	V, C
C/2010 B1 (Cardinal)	Jan 19, 2010	Feb 07, 2011	2.94	13.5	1.0	V, C
C/2010 G2 (Hill)	Apr 10, 2010	Sep 02, 2011	1.98	10.0	5	V, C
P/2010 JC81 (WISE)	May 10, 2010	Apr 26, 2011	1.81	14.0	0.7	C
C/2010 S1 (LINEAR)	Sep 21, 2010	May 20, 2013	5.90	14.0	0.5	C
C/2010 X1 (Elenin)	Dec 10, 2010	Sep 10, 2011	0.48	8.2	4	V, C
C/2011 A3 (Gibbs)	Jan 15, 2011	Dec 16, 2011	2.34	9.0	6	C
C/2011 C1 (McNaught)	Feb 10, 2011	Apr 18, 2011	0.88	8.8	5	V, C
C/2011 F1 (LINEAR)	Mar 17, 2011	Jan 08, 2013	1.82	14.5	0.7	C
C/2011 L3 (McNaught)	Jun 03, 2011	Aug 10, 2011	1.92	12.5	1.5	V, C
C/2011 M1 (LINEAR)	Jun 22, 2011	Sep 07, 2011	0.90	9.6	6	V, C
C/2011 Q4 (SWAN)	Aug 23, 2011	Sep 21, 2011	1.11	11.5	3	C
C/2011 S2 (Kowalski)	Sep 30, 2011	Oct 26, 2011	1.12	15.5	0.5	C
C/2011 W3 (Lovejoy)	Nov 27, 2011	Dec 16, 2011	0.01	-3.0	15	Southern Hemisphere
10P/Tempel	-	Jul 04, 2010	1.42	13.0	2	C
21P/Giacobini-Zinner	-	Feb 11, 2012	1.03	10.0	3.0	V, C
27P/Crommelin	-	Aug 03, 2011	0.75	11.0	2.0	C
29P/Schwassmann-Wachmann	-	Jul 10, 2004	5.72	11.0	2.0	V, C
45P/Honda-Mrkos-Pajdusakova	-	Sep 28, 2011	0.53	6.8	12	V, C
48P/Johnson	-	Sep 29, 2011	2.30	15.5	0.7	C
49P/Arend-Rigaux	-	Oct 19, 2011	1.42	12.0	2	V, C
65P/Gunn	-	Mar 02, 2010	2.44	14.5	0.5	C
78P/Gehrels	-	Jan 12, 2012	2.01	10.5	3.0	V, C
103P/Hartley	-	Oct 28, 2010	1.06	9.0	9	V, C
123P/West-Hartley	-	Jul 04, 2011	2.13	14.5	0.8	C
174P/Echeclus	-	Apr 24, 2015	5.77	15.0	1.0	C
213P/Van Ness	-	Jun 16, 2011	2.12	12.0	2.0	V, C
240P/NEAT	-	Oct 04, 2010	2.12	14.5	0.5	C

Explanation

• discovered = Date of Discovery
• T = Date of Perihelion
• q [AU] = Perihelion Distance in AU
• m_max = maximum brightness observed in the course of the year
• Coma ['] = maximum coma diameter (in arcminutes) observed in the course of the year
• FGK = Observation Method used by the members of the German Comet Section (V = visual observation, F = Photography, C = CCD / Digital Camera)

Andreas Kammerer