ASCC 20

Click to load Aladin Lite
UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
0.83 1.0 1.0 0.58 1.0
C3
N_50
r_50
AA 317 45.0
Summary

ASCC 20 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 large percentage of members with 5 later reported entries.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Piskunov et al. (2007) 82.181 1.627 – – – –
Piskunov et al. (2008) 82.181 1.627 – – – –
Kharchenko et al. (2012) 82.189 1.64 – 0.59 0.33 –
Donor et al. (2020) 82.189 1.64 – 1.42 -1.9 19.4
Hunt & Reffert (2023) 82.194 1.721 2.73 -0.569 0.759 27.886
Cavallo et al. (2024) 82.006 1.698 2.731 – – –
Hunt & Reffert (2024) 82.194 1.721 2.73 -0.569 0.759 27.886
           
UCC 82.1 1.665 2.725 -0.545 0.776 29.497
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

ASCC 20 UCC
ASCC 20 HUNT23

Explore data in Colab

Fundamental parameters

Reference Values
Piskunov et al. (2007) E(B-V)=0.04, Dist=450, logt=7.35, logM=2.794
Piskunov et al. (2008) E(B-V)=0.04, Dist=450, logt=7.35, logM=3.074, logMA=2.827
Kharchenko et al. (2012) e_bv=0.062, distance=394, log_age=7.0
Donor et al. (2020) Fe/H=0.02
Hunt & Reffert (2023) AV50=0.108, diffAV50=0.471, MOD50=7.763, logAge50=7.098
Cavallo et al. (2024) AV50=0.53, dMod50=7.85, logAge50=7.12, [Fe/H]50=0.03
Hunt & Reffert (2024) MassJ=104.810, MassTot=132.896

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OCSN 57 91.2 82.08 1.67 2.74 -0.52 0.79 29.19 0.0
ASCC 18 48.3 81.73 0.85 2.55 -0.18 1.17 28.19 0.43
FoF 2371 36.0 82.39 2.02 2.69 -0.68 0.69 29.78 0.02
OCSN 56 18.3 82.64 2.37 2.53 -0.82 0.53 31.28 0.2
OCSN 58 0.3 81.25 0.32 2.4 0.15 1.36 26.71 0.0