Table 2. Open in new tab Age predicted...

Name	Age¹	Error	Age²	Error	Age³	Error	Age⁴	Error	Age⁵	Error
NGC 1651	8.90	60	8.96	54	8.81	68	9.05	44	8.75	72
NGC 1711	7.55	41	7.63	70	7.58	51	–	–	–	–
NGC 1839	8.05	239	8.11	289	8.11	289	–	–	–	–
NGC 1850	7.75	41	7.70	26	7.76	45	–	–	–	–
NGC 1856	8.45	255	8.41	224	8.36	188	8.54	337	8.45	255
NGC 1863	7.45	51	7.51	44	7.46	50	–	–	–	–
NGC 1870	7.80	13	7.86	0	7.81	11	8.00	38	7.85	2
NGC 1894	7.85	29	7.81	17	7.81	17	–	–	–	–
NGC 1903	7.85	0	8.16	104	7.86	2	8.11	82	8.15	100
NGC 1983	6.65	44	6.74	31	6.46	64	–	–	–	–
NGC 1984	6.65	37	6.90	12	6.40	65	–	–	–	–
NGC 1994	6.65	38	7.00	38	6.64	40	–	–	–	–
NGC 2002	7.00	37	6.82	58	7.00	37	–	–	–	–
NGC 2011	6.65	26	6.94	45	6.46	52	–	–	–	–
NGC 2031	8.25	12	8.36	45	8.16	9	8.34	38	8.26	15
NGC 2065	7.95	26	8.21	129	7.96	29	8.20	124	8.15	100
NGC 2136	7.90	100	8.16	263	7.91	104	–	–	–	–
NGC 2155	9.20	37	9.99	289	9.16	42	10.1	401	9.20	37
NGC 2156	8.00	66	7.96	51	8.01	70	8.04	82	8.04	82
NGC 2157	7.85	78	7.86	82	7.81	62	–	–	–	–
NGC 2164	7.90	58	7.86	45	7.91	62	–	–	–	–
NGC 2172	7.55	41	7.65	26	7.60	34	7.85	17	7.78	0
NGC 2173	9.35	7	9.41	23	9.23	19	9.55	70	9.35	7
NGC 2213	6.80	99	9.16	62	6.80	99	9.15	58	7.78	93
NGC 2249	8.40	62	8.61	38	8.31	69	8.70	24	8.34	67
SL234	7.80	32	7.81	35	7.81	35	–	–	–	–
SL237	6.90	70	6.90	70	7.26	32	–	–	–	–

Name

Age¹

Error

Age²

Error

Age³

Error

Age⁴

Error

Age⁵

Error

(%)

NGC 1651

8.90

8.96

8.81

9.05

8.75

NGC 1711

7.55

7.63

7.58

–

NGC 1839

8.05

239

8.11

289

8.11

289

–

NGC 1850

7.75

7.70

7.76

–

NGC 1856

8.45

255

8.41

224

8.36

188

8.54

337

8.45

255

NGC 1863

7.45

7.51

7.46

–

NGC 1870

7.80

7.86

7.81

8.00

7.85

NGC 1894

7.85

7.81

–

NGC 1903

7.85

8.16

104

7.86

8.11

8.15

100

NGC 1983

6.65

6.74

6.46

–

NGC 1984

6.65

6.90

6.40

–

NGC 1994

6.65

7.00

6.64

–

NGC 2002

7.00

6.82

7.00

–

NGC 2011

6.65

6.94

6.46

–

NGC 2031

8.25

8.36

8.16

8.34

8.26

NGC 2065

7.95

8.21

129

7.96

8.20

124

8.15

100

NGC 2136

7.90

100

8.16

263

7.91

104

–

NGC 2155

9.20

9.99

289

9.16

10.1

401

9.20

NGC 2156

8.00

7.96

8.01

8.04

NGC 2157

7.85

7.86

7.81

–

NGC 2164

7.90

7.86

7.91

–

NGC 2172

7.55

7.65

7.60

7.85

7.78

NGC 2173

9.35

9.41

9.23

9.55

9.35

NGC 2213

6.80

9.16

6.80

9.15

7.78

NGC 2249

8.40

8.61

8.31

8.70

8.34

SL234

7.80

7.81

–

SL237

6.90

7.26

–

Name	Age¹	Error	Age²	Error	Age³	Error	Age⁴	Error	Age⁵	Error
NGC 1651	8.90	60	8.96	54	8.81	68	9.05	44	8.75	72
NGC 1711	7.55	41	7.63	70	7.58	51	–	–	–	–
NGC 1839	8.05	239	8.11	289	8.11	289	–	–	–	–
NGC 1850	7.75	41	7.70	26	7.76	45	–	–	–	–
NGC 1856	8.45	255	8.41	224	8.36	188	8.54	337	8.45	255
NGC 1863	7.45	51	7.51	44	7.46	50	–	–	–	–
NGC 1870	7.80	13	7.86	0	7.81	11	8.00	38	7.85	2
NGC 1894	7.85	29	7.81	17	7.81	17	–	–	–	–
NGC 1903	7.85	0	8.16	104	7.86	2	8.11	82	8.15	100
NGC 1983	6.65	44	6.74	31	6.46	64	–	–	–	–
NGC 1984	6.65	37	6.90	12	6.40	65	–	–	–	–
NGC 1994	6.65	38	7.00	38	6.64	40	–	–	–	–
NGC 2002	7.00	37	6.82	58	7.00	37	–	–	–	–
NGC 2011	6.65	26	6.94	45	6.46	52	–	–	–	–
NGC 2031	8.25	12	8.36	45	8.16	9	8.34	38	8.26	15
NGC 2065	7.95	26	8.21	129	7.96	29	8.20	124	8.15	100
NGC 2136	7.90	100	8.16	263	7.91	104	–	–	–	–
NGC 2155	9.20	37	9.99	289	9.16	42	10.1	401	9.20	37
NGC 2156	8.00	66	7.96	51	8.01	70	8.04	82	8.04	82
NGC 2157	7.85	78	7.86	82	7.81	62	–	–	–	–
NGC 2164	7.90	58	7.86	45	7.91	62	–	–	–	–
NGC 2172	7.55	41	7.65	26	7.60	34	7.85	17	7.78	0
NGC 2173	9.35	7	9.41	23	9.23	19	9.55	70	9.35	7
NGC 2213	6.80	99	9.16	62	6.80	99	9.15	58	7.78	93
NGC 2249	8.40	62	8.61	38	8.31	69	8.70	24	8.34	67
SL234	7.80	32	7.81	35	7.81	35	–	–	–	–
SL237	6.90	70	6.90	70	7.26	32	–	–	–	–

Table 2.

Open in new tab

Age predicted by different model libraries using different statistical methods.

Name	Age¹	Error	Age²	Error	Age³	Error	Age⁴	Error	Age⁵	Error
		(%)		(%)		(%)		(%)		(%)
NGC 1651	8.90	60	8.96	54	8.81	68	9.05	44	8.75	72
NGC 1711	7.55	41	7.63	70	7.58	51	–	–	–	–
NGC 1839	8.05	239	8.11	289	8.11	289	–	–	–	–
NGC 1850	7.75	41	7.70	26	7.76	45	–	–	–	–
NGC 1856	8.45	255	8.41	224	8.36	188	8.54	337	8.45	255
NGC 1863	7.45	51	7.51	44	7.46	50	–	–	–	–
NGC 1870	7.80	13	7.86	0	7.81	11	8.00	38	7.85	2
NGC 1894	7.85	29	7.81	17	7.81	17	–	–	–	–
NGC 1903	7.85	0	8.16	104	7.86	2	8.11	82	8.15	100
NGC 1983	6.65	44	6.74	31	6.46	64	–	–	–	–
NGC 1984	6.65	37	6.90	12	6.40	65	–	–	–	–
NGC 1994	6.65	38	7.00	38	6.64	40	–	–	–	–
NGC 2002	7.00	37	6.82	58	7.00	37	–	–	–	–
NGC 2011	6.65	26	6.94	45	6.46	52	–	–	–	–
NGC 2031	8.25	12	8.36	45	8.16	9	8.34	38	8.26	15
NGC 2065	7.95	26	8.21	129	7.96	29	8.20	124	8.15	100
NGC 2136	7.90	100	8.16	263	7.91	104	–	–	–	–
NGC 2155	9.20	37	9.99	289	9.16	42	10.1	401	9.20	37
NGC 2156	8.00	66	7.96	51	8.01	70	8.04	82	8.04	82
NGC 2157	7.85	78	7.86	82	7.81	62	–	–	–	–
NGC 2164	7.90	58	7.86	45	7.91	62	–	–	–	–
NGC 2172	7.55	41	7.65	26	7.60	34	7.85	17	7.78	0
NGC 2173	9.35	7	9.41	23	9.23	19	9.55	70	9.35	7
NGC 2213	6.80	99	9.16	62	6.80	99	9.15	58	7.78	93
NGC 2249	8.40	62	8.61	38	8.31	69	8.70	24	8.34	67
SL234	7.80	32	7.81	35	7.81	35	–	–	–	–
SL237	6.90	70	6.90	70	7.26	32	–	–	–	–

Name	Age¹	Error	Age²	Error	Age³	Error	Age⁴	Error	Age⁵	Error
		(%)		(%)		(%)		(%)		(%)
NGC 1651	8.90	60	8.96	54	8.81	68	9.05	44	8.75	72
NGC 1711	7.55	41	7.63	70	7.58	51	–	–	–	–
NGC 1839	8.05	239	8.11	289	8.11	289	–	–	–	–
NGC 1850	7.75	41	7.70	26	7.76	45	–	–	–	–
NGC 1856	8.45	255	8.41	224	8.36	188	8.54	337	8.45	255
NGC 1863	7.45	51	7.51	44	7.46	50	–	–	–	–
NGC 1870	7.80	13	7.86	0	7.81	11	8.00	38	7.85	2
NGC 1894	7.85	29	7.81	17	7.81	17	–	–	–	–
NGC 1903	7.85	0	8.16	104	7.86	2	8.11	82	8.15	100
NGC 1983	6.65	44	6.74	31	6.46	64	–	–	–	–
NGC 1984	6.65	37	6.90	12	6.40	65	–	–	–	–
NGC 1994	6.65	38	7.00	38	6.64	40	–	–	–	–
NGC 2002	7.00	37	6.82	58	7.00	37	–	–	–	–
NGC 2011	6.65	26	6.94	45	6.46	52	–	–	–	–
NGC 2031	8.25	12	8.36	45	8.16	9	8.34	38	8.26	15
NGC 2065	7.95	26	8.21	129	7.96	29	8.20	124	8.15	100
NGC 2136	7.90	100	8.16	263	7.91	104	–	–	–	–
NGC 2155	9.20	37	9.99	289	9.16	42	10.1	401	9.20	37
NGC 2156	8.00	66	7.96	51	8.01	70	8.04	82	8.04	82
NGC 2157	7.85	78	7.86	82	7.81	62	–	–	–	–
NGC 2164	7.90	58	7.86	45	7.91	62	–	–	–	–
NGC 2172	7.55	41	7.65	26	7.60	34	7.85	17	7.78	0
NGC 2173	9.35	7	9.41	23	9.23	19	9.55	70	9.35	7
NGC 2213	6.80	99	9.16	62	6.80	99	9.15	58	7.78	93
NGC 2249	8.40	62	8.61	38	8.31	69	8.70	24	8.34	67
SL234	7.80	32	7.81	35	7.81	35	–	–	–	–
SL237	6.90	70	6.90	70	7.26	32	–	–	–	–

Note. – ¹Predicted by Gonzalez Delgado et al. (2005) using the KS test.

²Predicted by GALAXEV using the χ² minimization method.

³Predicted by GALAXEV using the KS test.

⁴Predicted by MILES using the χ² minimization method for clusters with CMD age equal to or greater than log (Age/year) 7.78.

⁵Predicted by MILES using the KS test for clusters with CMD age equal to or greater than log (Age/year) 7.78.

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