NGC 1817

(Collinder 60; OCL 463; MWSC 484; FoF 0)

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UCC G186.1-13.0
C3
N_50
r_50
AA 657 11.8

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Positions

Reference RA DEC Plx pmRA pmDE Rv
Dias et al. (2002) 78.062 16.69 – -1.79 -2.17 65.31
Chen et al. (2003) 78.027 16.698 – – – –
Kharchenko et al. (2012) 78.082 16.68 – 1.0 -1.6 –
Loktin & Popova (2017) 78.06 16.691 – 0.084 -0.323 65.3
Bica et al. (2019) 78.116 16.696 – – – –
Liu & Pang (2019) 78.138 16.71 0.549 0.516 -0.888 –
Cantat-Gaudin et al. (2020) 78.139 16.696 0.551 0.485 -0.89 –
Dias et al. (2021) 78.132 16.702 0.553 0.504 -0.88 65.554
Jaehnig et al. (2021) 78.136 16.686 0.582 0.482 -0.883 –
Hunt & Reffert (2023) 78.141 16.693 0.573 0.43 -0.932 66.742
Cavallo et al. (2024) 78.134 16.697 0.572 – – –
Hunt & Reffert (2024) 78.141 16.693 0.573 0.43 -0.932 66.742
Hu & Soubiran (2025) 78.134 16.698 – – – –
UCC 78.145 16.699 0.568 0.428 -0.929 65.739

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Estimated members

NGC 1817 UCC
NGC 1817 HUNT23
NGC 1817 CANTAT20

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Fundamental parameters

Reference Values
Dias et al. (2002) E(B-V)=0.334, Dist=1972.0, Age=8.612, [Fe/H]=-0.16
Chen et al. (2003) E(B-V)=0.334, HDis=1972, Age=0.4, [Fe/H]_1=-0.26
Kharchenko et al. (2012) e_bv=0.354, distance=1504, log_age=8.9, metallicity=-0.14
Loktin & Popova (2017) E(B-V)=0.326, Dmod=11.51, logt=8.633
Liu & Pang (2019) Age=1.41, Z=-0.25
Cantat-Gaudin et al. (2020) AVNN=0.59, DMNN=11.28, AgeNN=9.05
Dias et al. (2021) Av=0.722, Dist=1582, logage=9.092, [Fe/H]=-0.1
Hunt & Reffert (2023) AV50=0.341, diffAV50=0.506, MOD50=11.063, logAge50=9.124
Cavallo et al. (2024) AV50=0.65, dMod50=11.08, logAge50=9.07, [Fe/H]50=0.12
Hunt & Reffert (2024) MassJ=2712.84
Hu & Soubiran (2025) MA22=-0.23, MA23f=-0.29, MA23g=-0.2, MZ23=-0.24, MK24=-0.21, MF24=-0.18

Search coordinates in Bayestar19

Cluster region


Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv
NGC 1807 2.9 77.785 16.553 0.54 0.447 -0.942 65.358