Table 6. Open in new tab The cluster...

Table 6.

The cluster parameters as derived from the members (see equation 5) of the six clusters.

Cluster	Berkeley 67	King 2	NGC 2420	NGC 2477	NGC 2682	NGC 6940
Total stars in 3×r50	4962	4343	1604	37649	3501	99769
Members	392	1072	868	3888	1183	689
Candidates	33	46	47	174	79	43
ra_mean (deg)^a	69.471	12.727	114.603	118.048	132.844	308.632
dec_mean (deg)^a	50.743	58.186	21.577	−38.534	11.827	28.300
pmra_mean (mas yr⁻¹)^a	2.28 ± 0.28	−1.43 ± 0.27	−1.22 ± 0.30	−2.43 ± 0.26	−10.96 ± 0.33	−1.96 ± 0.15
pmdec_mean (mas yr⁻¹)^a	−1.42 ± 0.22	−0.85 ± 0.35	−2.05 ± 0.26	0.90 ± 0.27	−2.91 ± 0.29	−9.44 ± 0.16
Stars with RV	2	1	6	16	39	15
RV_mean (km s⁻¹)^a	∼ −1	∼ −41	73 ± 2	8 ± 4	34 ± 4	8 ± 4
parallax_mean (mas)^a	0.43 ± 0.29	0.15 ± 0.39	0.38 ± 0.26	0.64 ± 0.33	1.16 ± 0.28	0.95 ± 0.19
distance from isochrone (pc)	2023	5749	2512	1514	848	1000
R_core (arcmin)^b	1.3	0.5	1.2	6.4	6.3	2.2
R_core (pc)	0.76	0.84	0.88	2.82	1.55	0.64

Cluster	Berkeley 67	King 2	NGC 2420	NGC 2477	NGC 2682	NGC 6940
Total stars in 3×r50	4962	4343	1604	37649	3501	99769
Members	392	1072	868	3888	1183	689
Candidates	33	46	47	174	79	43
ra_mean (deg)^a	69.471	12.727	114.603	118.048	132.844	308.632
dec_mean (deg)^a	50.743	58.186	21.577	−38.534	11.827	28.300
pmra_mean (mas yr⁻¹)^a	2.28 ± 0.28	−1.43 ± 0.27	−1.22 ± 0.30	−2.43 ± 0.26	−10.96 ± 0.33	−1.96 ± 0.15
pmdec_mean (mas yr⁻¹)^a	−1.42 ± 0.22	−0.85 ± 0.35	−2.05 ± 0.26	0.90 ± 0.27	−2.91 ± 0.29	−9.44 ± 0.16
Stars with RV	2	1	6	16	39	15
RV_mean (km s⁻¹)^a	∼ −1	∼ −41	73 ± 2	8 ± 4	34 ± 4	8 ± 4
parallax_mean (mas)^a	0.43 ± 0.29	0.15 ± 0.39	0.38 ± 0.26	0.64 ± 0.33	1.16 ± 0.28	0.95 ± 0.19
distance from isochrone (pc)	2023	5749	2512	1514	848	1000
R_core (arcmin)^b	1.3	0.5	1.2	6.4	6.3	2.2
R_core (pc)	0.76	0.84	0.88	2.82	1.55	0.64

Notes. ^aThe means and errors are mean and standard deviations of Gaussian fit to the member parameters.

^bProjected R_core is calculated using distance from isochrone fits