ASCC 18

(MWSC 541)

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UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.84 1.0 1.0 0.69 1.0
C3
N_50
r_50
AA 352 50.1
Summary

ASCC 18 is a rich, very dense object of very high C3 quality. It is located at a very close distance from the Sun, below the mid-plane. It is moderately studied in the literature.

This object shares a moderate percentage of members with at least one entry reported in the same catalogue.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Kharchenko et al. (2005) 81.54 0.82 – 0.89 -0.02 13.39
Kharchenko et al. (2007) 81.54 0.82 – 0.62 – 24.4
Piskunov et al. (2008) 81.532 0.819 – – – –
Kharchenko et al. (2013) 81.562 0.9 – 3.21 -0.96 24.4
Kharchenko et al. (2016) 81.555 0.901 – – – –
Bica et al. (2019) 81.54 0.824 – – – –
Donor et al. (2020) 81.562 0.9 – 1.13 -0.31 21.2
Just et al. (2023) 81.555 0.901 – – – –
Hunt & Reffert (2023) 81.33 0.368 2.415 0.156 1.373 26.158
Cavallo et al. (2024) 81.322 0.317 2.415 – – –
Zhang et al. (2024) 81.33 0.368 – – – –
           
UCC 81.727 0.85 2.553 -0.181 1.169 28.189
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

ASCC 18 UCC
ASCC 18 HUNT23

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Fundamental parameters

Reference Values
Kharchenko et al. (2005) E(B-V)=0.06, Dist=500, logt=7.12
Piskunov et al. (2008) E(B-V)=0.06, Dist=500, logt=7.12, logMA=2.708
Kharchenko et al. (2013) E(B-V)=0.062, d=313.0, logt=7.15
Kharchenko et al. (2016) E(B-V)=0.062, d=313.0, logt=7.15
Donor et al. (2020) Fe/H=-0.14
Just et al. (2023) logt=7.15, logmt=0.982
Hunt & Reffert (2023) AV50=0.228, diffAV50=0.762, MOD50=8.02, logAge50=6.967
Cavallo et al. (2024) AV50=0.4, dMod50=8.03, logAge50=6.8, [Fe/H]50=0.15
Zhang et al. (2024) [Fe/H]ANN=0.06253, [Fe/H]MCMC=0.09039

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
ASCC 20 43.5 82.1 1.67 2.73 -0.54 0.78 29.5 0.84
OCSN 57 42.3 82.08 1.67 2.74 -0.52 0.79 29.19 0.0
OCSN 58 12.5 81.25 0.32 2.4 0.15 1.36 26.71 0.0
FoF 2371 8.8 82.39 2.02 2.69 -0.68 0.69 29.78 0.02
OCSN 56 0.9 82.64 2.37 2.53 -0.82 0.53 31.28 0.2
ASCC 16 0.3 81.23 1.65 2.87 1.39 -0.09 18.3 1.0