Ages are best recent estimates, and italicized ages are from the Lithium Depletion Boundary (LDB) method. Italicized ages with a * are simply 1.6 times the most recent non-LDB method ages. This factor comes from the new estimates of the ages for IC 2391, Pleiades and alpha Persei clusters, which increased the classical age estimates by 50-65%.

CLUSTER/ASSOC	DIST	Age	Gal Lat	Notes / Membership
AB Dor	15	80-120	-33
Beta Pic	10-50	10-20	+17
Her-Lyr	?	?	-33	Fuhrmann 2004
Ursa Major	20-25	162-300	+60
Castor	5-30	100-300	+22
Tucanae	45	10-40	widespread	probable and improbable members of Zuckerman & Webb 2000
Hyades	46	650	-22
TW Hya	55	10	widespread around +23
Horologium	60	30	?	Torres et al. 2000
MBM 12	~60-100	<10	-34.3
Coma Ber	87	~600?	+84.0
Eta Cha	97	8	-21.7
Epsilon Cha	108	5-15	-15.6
a Car	130	60	-7	Platais et al 1998; 11 B2-F5 members only
Pleiades	118	125	-23.5
Lower Cen Crux	118	11	+5
Upper Cen Lup	140	15	+10
Upper Sco	145	5	+18
Lupus T Assn	160	<10	+10
Rho Oph OB Assn	150	0-2?	+16.5
Tau-Aur T Assn	140	<10	?
Cha I T Assn	160	<2	-15.6
Cha II T Assn	180	<10	-14.4
Praesepe/M44	181	400-900	+32.5
IC 2602/Theta Car	152	35(56*)	-4.9
IC 2391/Omicron Vel	146	53	-6.9	note Platais et al 2007 membership study
Alpha Per	191	65 90	-7.1
Cas-Tau	180	70-90	-10
NGC 2451A	189	36-100	-6.7
NGC 6475/M7	280	129-224	-4.5
IC 348/Omicron Per	261	0.5-12	-17.7
Blanco 1/Zeta Scu	263	90(145*)	-79.3
Collinder 135	276	80?	-11.2
Stock 2	303	800?	-1.9
NGC 7092/M39	311	269-407	-2.2
Delta Lyra/Stephenson 1	315	25-40	+15.5
NGC 2232	325	22-71	-7.4
IC 4756	330	600	+5.3
Ruprecht 98	335	500?	-2.2
NGC 2264	350	3-20	+2.2
Collinder 463	350	300?	+9.4
Roslund 5	350	100?	+0.3
NGC 752	364	2000?	-23.4
IC 4665	327-430	36-40	+17.1
NGC 6633	383	450?	+8.3
NGC 1662	395	300?	-21.1
Collinder 140	410	22-40	-7.9
Trumpler 10	365	15-47	+0.6
NGC 2451B	360	100	+3.4	Baumgardt 1998says it probably doesn't exist, but Platais et al 1998 recovered a membership of 5 through HIP.
NGC 2516	346	62-126	-15.9
Collinder 132	411	78	-9.2
NGC 1901	415	830?	-33.6
NGC 2547	433	23-55	-8.5
Gamma Vel	440	2-4	-7.7
Sigma Ori	480	2-4	-17.3
Lambda Ori	480	4-5	-12.0
Orion A/M42/NGC 1976	399	13	-19.4
Orion B/NGC 2024	?	?	-16.4
NGC 1039/M34	440-501	250(400)	-15.6
NGC 2164	466	100	-6.0
NGC 6494/M23	475	340	+2.9
NGC 2422/M47	498	78-100	+3.1
NGC 3532	405	251-347	+1.4
NGC 6405/M6	484	100	-0.7
Collinder 121	556-592	1.5-10	-10.4