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Table C.1

Ellipticity values measured in this work compared with those provided in White & Shawl (1987), Chen & Chen (2010), and Cruz Reyes & Anderson (2024).

Cluster Ntot rh Rmax/rh e ± σe e3rh ± σ3 rh eWS87 eCC10 eCR24 φ ± σφ θ0 i
104 5484 3.23 5.1 0.076 ± 0.012 0.038 ± 0.009 0.09 ± 0.01 0.16 ± 0.02 0.059 ± 0.004 133.7 ± 3.8 44 ± 4 33 ± 2
288 676 2.23 4.6 0.013 ± 0.023 0.010 ± 0.022 - 0.06 ± 0.01 0.021 ± 0.010 55.2 ± 7.9 96 ± 49 36 ± 20
1261 1209 0.68 19.1 0.086 ± 0.012 0.012 ± 0.018 0.07 ± 0.00 0.23 ± 0.07 0.042 ± 0.018 102.2 ± 2.9 18 ± 20 66 ± 25
1851 1595 0.51 23.6 0.012 ± 0.011 0.006 ± 0.024 0.07 ± 0.00 0.23 ± 0.07 0.042 ± 0.018 11.6 ± 8.2 90 ± 8 65 ± 8
2808 4892 0.80 21.8 0.13 ± 0.007 0.118 ± 0.010 0.07 ± 0.00 0.23 ± 0.07 0.042 ± 0.018 132.8 ± 1.8 51 ± 6 88 ± 3
3201 716 3.10 3.55 0.094 ± 0.02 0.125 ± 0.020 0.12 ± 0.00 0.20 ± 0.01 0.065 ± 0.007 110.0 ± 5.5 26 ± 9 64 ± 5
4590 556 1.51 5.7 0.052 ± 0.02 0.016 ± 0.027 0.05 ± 0.01 0.16 ± 0.05 0.062 ± 0.015 170.3 ± 23.4 176 ± 31 82 ± 21
4833 1055 2.41 3.3 0.14 ± 0.02 0.137 ± 0.020 0.07 ± 0.01 0.11 ± 0.02 0.022 ± 0.009 15.7 ± 3.9 124 ± 83 61 ± 26
5024 2091 1.31 9.7 0.051 ± 0.014 0.063 ± 0.012 0.01 ± 0.00 0.14 ± 0.04 0.039 ± 0.014 138.2 ± 7.6 119 ± 32 33 ± 14
5053 202 2.61 3.3 0.183 ± 0.029 0.183 ± 0.028 0.21 ± 0.01 0.21 ± 0.03 0.137 ± 0.023 139.2 ± 6.6 - -
5272 2208 2.31 7.1 0.06 ± 0.015 0.075 ± 0.015 0.04 ± 0.00 0.06 ± 0.01 0.025 ± 0.008 144.4 ± 5.8 99 ± 9 32 ± 8
5286 2938 0.73 9.6 0.096 ± 0.009 0.106 ± 0.008 0.12 ± 0.01 0.17 ± 0.01 0.047 ± 0.013 118.8 ± 4.5 6 ± 9 80 ± 7
5904 1843 1.77 13.0 0.15 ± 0.02 0.153 ± 0.017 0.14 ± 0.00 0.06 ± 0.02 0.057 ± 0.008 2.3 ± 5.2 71 ± 16 30 ± 2
5986 2120 0.98 5.6 0.088 ± 0.014 0.125 ± 0.017 0.06 ± 0.00 0.26 ± 0.11 0.040 ± 0.013 142.1 ± 4.8 77 ± 53 54 ± 18
6101 612 1.05 9.2 0.019 ± 0.025 0.000 ± 0.033 0.05 ± 0.00 0.06 ± 0.01 0.066 ± 0.013 27.0 ± 12.4 64 ± 28 63 ± 15
6121 551 4.33 1.9 0.037 ± 0.02 - 0.00 ± 0.01 0.07 ± 0.02 0.018 ± 0.007 144.6 ± 38.2 50 ± 15 87 ± 12
6205 2181 1.69 9.6 0.10 ± 0.011 0.091 ± 0.020 0.11 ± 0.00 0.12 ± 0.02 0.050 ± 0.007 19.1 ± 4.4 107 ± 10 16 ± 3
6218 742 1.77 5.8 0.009 ± 0.019 0.007 ± 0.054 0.04 ± 0.00 0.08 ± 0.01 0.017 ± 0.008 10.6 ± 10.0 173 ± 75 22 ± 12
6254 1380 1.95 8.6 0.033 ± 0.024 0.014 ± 0.021 0.00 ± 0.00 0.11 ± 0.04 0.025 ± 0.008 21.2 ± 10.5 14 ± 80 26 ± 16
6341 1212 1.02 19.2 0.11 ± 0.017 0.012 ± 0.017 0.10 ± 0.00 0.11 ± 0.03 0.042 ± 0.010 136.5 ± 8.2 44 ± 29 82 ± 10
6366 606 2.92 5.6 0.030 ± 0.018 0.000 ± 0.026 0.16 ± 0.01 0.09 ± 0.04 0.030 ± 0.011 62.0 ± 46.8 44 ± 84 51 ± 20
6656 968 3.36 2.2 0.012 ± 0.022 - 0.14 ± 0.01 0.12 ± 0.01 0.056 ± 0.005 106.2 ± 15.9 9 ± 7 18 ± 3
6809 809 2.83 4.7 0.01 ± 0.022 0.010 ± 0.025 0.02 ± 0.00 0.11 ± 0.01 0.015 ± 0.006 97.5 ± 18.3 41 ± 72 74 ± 14
6838 409 1.67 4.3 0.14 ± 0.025 0.184 ± 0.028 0.00 ± 0.01 0.32 ± 0.02 0.016 ± 0.008 17.1 ± 3.7 20 ± 97 34 ± 30
6934 820 0.69 8.7 0.008 ± 0.015 0.010 ± 0.029 0.01 ± 0.00 0.06 ± 0.02 0.031 ± 0.016 55.4 ± 8.4 - -
6981 542 0.93 7.1 0.016 ± 0.030 0.015 ± 0.027 0.02 ± 0.00 0.14 ± 0.09 0.034 ± 0.018 157.0 ± 12.8 - -
7078 2372 1.00 16.8 0.062 ± 0.018 0.080 ± 0.015 0.07 ± 0.00 0.23 ± 0.07 0.042 ± 0.018 119.3 ± 5.5 37 ± 10 62 ± 5
7089 2709 1.06 11.1 0.043 ± 0.018 0.032 ± 0.015 0.11 ± 0.00 0.14 ± 0.02 0.027 ± 0.011 54.0 ± 7.0 119 ± 7 18 ± 5
7099 521 1.03 8.6 0.015 ± 0.040 0.000 ± 0.026 0.01 ± 0.01 0.10 ± 0.01 0.032 ± 0.012 34.9 ± 22.0 86 ± 58 18 ± 13

Notes. The NGC number is given in the first column. In the second column, we provide the total number of stars available in the complete RGB sample. rh is the half-light radius in arcmin taken from Harris (1996). Rmax/rh is the ratio of the maximum distance to the cluster’s centre and the half-light radius. The next five columns present the ellipticities from our analysis using all stars (e), restricted to within three half-light radii (e 3 rh, as well as the ellipticities reported by WS87, CC10, and CR24. We report on the position angle of the major axis of the ellipse in the ninth column (in degrees). The last columns correspond to the position angle of the rotation axis and the inclination angle of the cluster, both in degrees, after applying the modifications described in Sect. 4 to the values reported in Table A.1 from Leitinger et al. (2025). We find a median flattening of 0.052.

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