Comets Named in 2011

Comet Designation	Comet Name	Discovery Observation	Discovery Announced	IAUC	Date of Naming	IAUC - MPEC	Notes
P/2011 A1	P/Larson	Jan 10	Jan 11	9191	Jan 11	9191
P/2011 A2	P/Scotti	Jan 11	Jan 14	9192	Jan 14	9192
C/2011 A3	C/Gibbs	Jan 15	Jan 17	9193	Jan 17	9193
P/2011 A4	P/LINEAR	Jan 14	Jan 17	9194	Jan 17	9194	Recovery of P/2006 U1
C/2011 C1	C/McNaught	Feb 10	Feb 12	9197	Feb 12	9197
P/2011 C2	P/Gibbs	Feb 12	Feb 15	9199	Feb 15	9199
C/2011 C3	C/Gibbs	Feb 12	Feb 15	9200	Feb 15	9200
P/2011 E1	P/SOHO	Mar 9	Mar 21	9201	Mar 21	9201	Disc. by R. Kracht; Recovery of P/2005 W4 = 2000 O3
C/2011 F1	C/LINEAR	Mar 17	Mar 21	9202	Mar 21	9202
C/2011 G1	C/McNaught	Apr 5	Apr 6	9204	Apr 6	9204
C/2011 H1	C/Lemmon	Apr 26	May 5	9206	May 5	9206	Apparently asteroidal; Disc. as comet on Apr 26
P/2011 J1	P/LINEAR	May 1	May 5	9207	May 5	9207	Recovery of P/2004 HC18
C/2011 J2	C/LINEAR	May 4	May 7	J31	May 7	J31
P/2011 J3	P/LINEAR	May 14	May 20	9209	May 20	9209
P/2011 JB15	P/Spacewatch-Boattini	May 28	May 31	9210	May 31	9210	Apparently asteroidal on May 8; Coma seen on May 28
C/2011 K1	C/Schwartz-Holvorcem	May 26	May 31	9211	May 31	9211
P/2011 L1	P/McNaught	Jun 2	Jun 6	9212	Jun 6	9212
C/2011 L2	C/McNaught	Jun 2	Jun 6	9213	Jun 6	9213
C/2011 L3	C/McNaught	Jun 3	Jun 6	9214	Jun 6	9214
C/2011 L4	C/PANSTARRS	Jun 6	Jun 8	9215	Jun 8	9215	Disc. by R. Wainscoat
P/2011 L5	P/LINEAR	Jun 9	Jun 11	L41	Jun 11	L41	Recovery of P/2000 G1
C/2011 L6	C/Boattini	Jun 8	Jun 11	L42	Jun 11	L42
C/2011 M1	C/LINEAR	Jun 22	Jun 25	9218	Jun 25	9218	Apparently asteroidal; Coma seen on Jun 23
P/2011 N1	P/ASH	Jul 1	Jul 7	9219	Sep 12	9228	Apparently asteroidal; Tail seen on Jul 3, Coma on Jul 7
C/2011 N2	C/McNaught	Jul 4	Jul 7	9220	Jul 7	9220
C/2011 N3	C/SOHO	Jul 4	Jul 12	N41	Jul 12	N41
P/2011 NO1	P/Elenin	Jul 7	Jul 19	O10	Sep 12	9227
C/2011 O1	C/LINEAR	Jul 31	Aug 2	P03	Aug 2	P03	Apparently asteroidal; Coma seen on Jul 31
P/2011 P1	P/McNaught	Aug 1	Aug 4	P19	Aug 4	P19
P/2010 JC81	P/WISE	Aug 1	Aug 5	P24	Aug 5	P24	Discovered as astroid on May 10, 2010. Coma seen on Aug 1, 2011
C/2011 P2	C/PanSTARRS	Aug 3	Aug 7	P32	Aug 7	P32
C/2011 Q1	C/PanSTARRS	Aug 20	Aug 22	Q12	Aug 22	Q12
C/2011 Q2	C/McNaught	Aug 28	Aug 30	Q54	Aug 30	Q54
P/2011 Q3	P/McNaught	Aug 29	Sep 1	R01	Sep 1	R01
C/2011 R1	C/McNaught	Sep 3	Sep 5	R20	Sep 5	R20
C/2011 Q4	C/SWAN	Sep 4	Sep 5	R22	Sep 5	R22	Comet confirmed by R.H. McNaught
P/2011 R2	P/PanSTARRS	Sep 4	Sep 7	R24	Sep 7	R24	Reported by L. Denneau and R. Wainscoat
P/2011 R3	P/Novichonok-Gerke	Sep 7	Sep 9	R34	Sep 12	9232
P/2011 S1	P/Gibbs	Sep 18	Sep 21	S28	Nov 9	9234
P/2010 TO20	P/LINEAR-Grauer	Oct 19	Oct 21	U41	Oct 21	U41	Disc. as Jupiter Trojan Minor Planet first on Oct 1 '10
P/2011 U1	P/PanSTARRS	Oct 23	Oct 26	U84	Oct 26	U84
P/2011 U2	P/Bressi	Oct 24	Oct 26	U85	Oct 26	U85
C/2011 U3	C/PanSTARRS	Oct 24	Oct 30	U107	Oct 30	U107
P/2011 UA134	P/Spacewatch-PanSTARRS	Oct 25	Oct 30	U108	Oct 30	U108
P/2011 V1	P/Boattini	Nov 1	Nov 2	V13	Nov 2	V13
P/2011 S2	P/Kowalski	Sept 30	Oct 2	T12	Nov 9	9234
P/2011 W1	P/PanSTARRS	Nov 26	Nov 28	W66	Nov 28	W66
P/2011 W2	P/Rinner	Nov 28	Nov 29	W80	Nov 29	W80
P/2010 UH55	P/Spacewatch	Nov 3	Nov 30	W82	Nov 30	W82	Reported as asteroid on Oct 29 2010
C/2011 W3	C/Lovejoy	Nov 27	Dec 2	X16	Dec 2	X16	Kreutz sungrazer
P/2011 Y1	P/Levy	Dec 17	Dec 19	9247	Dec 19	9247	Recovery of P/2006 T1
P/2011 Y2	P/Boattini	Dec 24	Dec 31	9248	Dec 31	9248
C/2011 Y3	C/Boattini	Dec 25	Dec 31	9249	Dec 31	9249
C/2011 UF305	C/LINEAR	Nov 2	Dec 29	Y51	Dec 29	Y51	Disc. as apparent asteroid on Oct. 31

Announcements of newly discovered comets usually appear first on IAU Circulars and the number of the circular is given in the column headed "IAUC". Announcements of new names can appear either on IAU Circulars or on Minor Planet Electronic Circulars and the reference is given in the column headed "IAUC - MPEC". Simple numbers refer to IAU Circulars while numbers preceded by a single letter refer to MPECs, implicitly preceded by the current year. Occasionally an MPEC appears announcing a comet shortly before the IAU Circular but since this is mostly a matter of varying electronic transmission times, we have listed the IAU Circular when one was issued on the same day. The date of naming is implicitly in the current year. The Notes column usually gives the name of the individual(s) who discovered the cometary activity, whether independently or because of requests based on the orbit (which are often posted on the NEO Confirmation Page of the Minor Planet Center). This column is also used to indicate unusual characteristics (Centaur, possible short-period orbit, etc.)

Created by: Mike A'Hearn; Last Updated: Tuesday, 14-Jun-2011 16:45:05 EDT