Table 8: Comparison between spectroscopic and computed values, i.e. photometric temperatures and gravities computed assuming photometric temperatures. The photometric temperatures are computed by means of the infrared magnitudes from the 2MASS catalogue (shown in the second, third and fourth column), which were converted into TCS colours, and the available V magnitudes (shown in fifth column).
Star Photometry Computed Spectroscopic

2MASS Johnson values values

J H $K_{\rm S}$ V $T_{\rm eff}$ $\log G$ $T_{\rm eff}$ $\log G$ $\xi$

NGC 3680

AHTC 1009
13.094 12.813 12.730 14.290 5926 4.46 6010 4.50 1.16

Eggen 70 13.471 13.157 13.088 14.589 6053 4.44 6210 4.47 1.36

IC 4651

AMC 1109
13.153 12.805 12.773 14.534 5678 4.50 6060 4.55 1.20

AMC 2207 13.210 12.931 12.831 14.527 5824 4.48 6050 4.36 1.18

AMC 4220 13.551 13.215 13.088 14.955 5605 4.51 5910 4.57 1.06

AMC 4226 13.303 12.966 12.909 14.645 5743 4.49 5980 4.44 1.19

Eggen 45 12.961 12.657 12.617 14.27 5844 4.47 6320 4.43 1.50

Praesepe

KW 49
9.591 9.330 9.276 10.65 6028 4.44 6150 4.50 1.41

KW 100 9.463 9.242 9.182 10.57 5977 4.45 6150 4.34 1.78

KW 208 9.565 9.357 9.259 10.66 5993 4.45 6280 4.58 1.52

KW 326 10.091 9.784 9.706 11.20 5873 4.47 5800 4.48 1.28

KW 368 10.183 9.825 9.753 11.30 5811 4.48 5720 4.49 1.12

KW 392 9.659 9.396 9.329 10.78 5902 4.46 6250 4.56 1.48

KW 418 9.463 9.227 9.142 10.51 6062 4.44 6150 4.36 1.27

M 67

Sand 746
13.058 12.746 12.628 14.380 5608 4.41 5750 4.43 0.84

Sand 1048 13.189 12.856 12.804 14.411 5792 4.36 5900 4.37 0.94

Sand 1092 13.189 12.856 12.804 13.308 5960 4.32 6160 4.41 1.42

Sand 1255 13.216 12.921 12.844 14.486 5733 4.38 5840 4.48 1.05

Sand 1283 12.926 12.630 12.599 14.115 5903 4.33 6100 4.41 1.16

Sand 1287 12.835 12.503 12.442 14.030 5838 4.35 6100 4.41 1.26

**Table 8:** Comparison between spectroscopic and computed values, i.e. photometric temperatures and gravities computed assuming photometric temperatures. The photometric temperatures are computed by means of the infrared magnitudes from the 2MASS catalogue (shown in the second, third and fourth column), which were converted into TCS colours, and the available V magnitudes (shown in fifth column).
Star	Photometry	Computed	Spectroscopic
	2MASS	Johnson	values	values
	J	H	$K_{\rm S}$	V	$T_{\rm eff}$	$\log G$	$T_{\rm eff}$	$\log G$	$\xi$
NGC 3680
AHTC 1009	13.094	12.813	12.730	14.290	5926	4.46	6010	4.50	1.16
Eggen 70	13.471	13.157	13.088	14.589	6053	4.44	6210	4.47	1.36
IC 4651
AMC 1109	13.153	12.805	12.773	14.534	5678	4.50	6060	4.55	1.20
AMC 2207	13.210	12.931	12.831	14.527	5824	4.48	6050	4.36	1.18
AMC 4220	13.551	13.215	13.088	14.955	5605	4.51	5910	4.57	1.06
AMC 4226	13.303	12.966	12.909	14.645	5743	4.49	5980	4.44	1.19
Eggen 45	12.961	12.657	12.617	14.27	5844	4.47	6320	4.43	1.50
Praesepe
KW 49	9.591	9.330	9.276	10.65	6028	4.44	6150	4.50	1.41
KW 100	9.463	9.242	9.182	10.57	5977	4.45	6150	4.34	1.78
KW 208	9.565	9.357	9.259	10.66	5993	4.45	6280	4.58	1.52
KW 326	10.091	9.784	9.706	11.20	5873	4.47	5800	4.48	1.28
KW 368	10.183	9.825	9.753	11.30	5811	4.48	5720	4.49	1.12
KW 392	9.659	9.396	9.329	10.78	5902	4.46	6250	4.56	1.48
KW 418	9.463	9.227	9.142	10.51	6062	4.44	6150	4.36	1.27
M 67
Sand 746	13.058	12.746	12.628	14.380	5608	4.41	5750	4.43	0.84
Sand 1048	13.189	12.856	12.804	14.411	5792	4.36	5900	4.37	0.94
Sand 1092	13.189	12.856	12.804	13.308	5960	4.32	6160	4.41	1.42
Sand 1255	13.216	12.921	12.844	14.486	5733	4.38	5840	4.48	1.05
Sand 1283	12.926	12.630	12.599	14.115	5903	4.33	6100	4.41	1.16
Sand 1287	12.835	12.503	12.442	14.030	5838	4.35	6100	4.41	1.26

Source LaTeX | All tables | In the text