NGC 1857

(Melotte 32; Collinder 61; OCL 428; FSR 0755; MWSC 505)

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UCC G168.4+01.2

C3
N_50
r_50
AA 290 4.6

Search object in NASA/SAO ADS | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Dias et al. (2002) 80.025 39.343 -1.94 -3.84
Kharchenko et al. (2012) 80.014 39.29 -4.73 -0.55
Loktin & Popova (2017) 80.025 39.343 -1.065 -0.21
Bica et al. (2019) 80.029 39.34
Cantat-Gaudin et al. (2020) 80.031 39.336 0.32 0.553 -1.31
Donor et al. (2020) 80.014 39.29 0.75 -1.2 1.3
Dias et al. (2021) 80.032 39.337 0.319 0.565 -1.31 0.417
Hunt & Reffert (2023) 80.029 39.329 0.331 0.47 -1.384 -3.071
Cavallo et al. (2024) 80.028 39.337 0.331
Hunt & Reffert (2024) 80.029 39.329 0.331 0.47 -1.384 -3.071
UCC 80.03 39.332 0.335 0.481 -1.375 -0.301

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Estimated members

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Fundamental parameters

Reference Values
Dias et al. (2002) E(B-V)=0.47, Dist=2490.0, Age=8.5, [Fe/H]=-0.36
Kharchenko et al. (2012) e_bv=0.5, distance=3299, log_age=8.67
Loktin & Popova (2017) E(B-V)=0.282, Dmod=12.726, logt=8.76
Cantat-Gaudin et al. (2020) AVNN=1.38, DMNN=12.31, AgeNN=8.4
Donor et al. (2020) Fe/H=-0.14
Dias et al. (2021) Av=1.696, Dist=2428, logage=8.429, [Fe/H]=-0.199
Hunt & Reffert (2023) AV50=1.27, diffAV50=0.416, MOD50=12.199, logAge50=8.317
Cavallo et al. (2024) AV50=1.51, dMod50=12.17, logAge50=8.42, [Fe/H]50=0.18
Hunt & Reffert (2024) MassJ=1408.98

Search coordinates in Bayestar19

Cluster region


Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv
Teutsch 88 5.2 80.123 39.54 0.287 0.533 -1.583 31.259
Czernik 20 2.4 80.12 39.536 0.275 0.564 -1.591 31.076