NGC 869

(MWSC 175)

Click to load Aladin Lite
UTI:
UCC Trust Index

C_N C_dens C_C3 C_lit C_dup
1.0 1.0 1.0 1.0 1.0
C3
N_50
r_50
AA 678 5.3
Summary

NGC 869 is a very rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, below the mid-plane. It is very well-studied in the literature.

This object shares a very small percentage of members with a later reported entry.

Search object in SciX | Simbad

Positions

Reference RA DEC Plx pmRA pmDE Rv
Dambis (1999) 34.75 57.128 – – – –
Dias et al. (2002) 34.75 57.128 – -0.92 -1.66 -42.84
Chen et al. (2003) 34.719 57.178 – -0.92 -1.66 -53.0
Kharchenko et al. (2003) 34.77 57.15 – -0.56 1.46 –
Kharchenko et al. (2005) 34.77 57.15 – -0.49 -0.9 -39.82
Kharchenko et al. (2007) 34.75 57.13 – 1.75 – -39.84
Piskunov et al. (2008) 34.759 57.149 – – – –
Kharchenko et al. (2012) 34.74 57.145 – -2.81 0.05 -41.77
Kharchenko et al. (2013) 34.74 57.145 – -2.81 0.05 -41.8
Kharchenko et al. (2016) 34.728 57.143 – – – –
Loktin & Popova (2017) 34.755 57.129 – -0.738 -0.15 -41.8
Cantat-Gaudin et al. (2018) 34.741 57.134 0.399 -0.689 -1.082 –
Soubiran et al. (2018) 34.741 57.134 – – – -62.82
Cantat-Gaudin et al. (2020) 34.741 57.134 0.399 -0.689 -1.082 –
Dias et al. (2021) 34.744 57.136 0.4 -0.682 -1.077 –
Rain et al. (2021) 34.741 57.134 0.399 -0.689 -1.082 –
Jaehnig et al. (2021) 35.09 57.142 0.424 -0.652 -1.079 –
Just et al. (2023) 34.728 57.143 – – – –
Hunt & Reffert (2023) 34.766 57.14 0.404 -0.654 -1.143 -67.639
Cavallo et al. (2024) 34.735 57.132 0.403 – – –
Celli et al. (2024) 34.741 57.134 – – – –
Hunt & Reffert (2024) 34.766 57.14 0.404 -0.654 -1.143 -67.639
Zhang et al. (2024) 34.766 57.14 – – – –
Almeida et al. (2025) 34.744 57.136 – – – –
           
UCC 34.751 57.138 0.403 -0.664 -1.13 -50.337
Galactocentric position Galactocentric position diagram

How are the galactocentric plots generated?

Search coordinates in CDS | Simbad

Estimated members

NGC 869 UCC
NGC 869 HUNT23
NGC 869 CANTAT20

Explore data in Colab

Fundamental parameters

Reference Values
Dambis (1999) E_B-V_=0.566, DM0=11.36, log_age_=6.5
Dias et al. (2002) E(B-V)=0.575, Dist=2079.0, Age=7.069, [Fe/H]=-0.3
Chen et al. (2003) HDis=2079, Age=0.01
Kharchenko et al. (2003) E(B-V)=0.58, Dist=2079
Kharchenko et al. (2005) E(B-V)=0.48, Dist=2079, logt=7.28
Piskunov et al. (2008) E(B-V)=0.48, Dist=2079, logt=7.28, logMA=6.022
Kharchenko et al. (2012) E(B-V)=0.521, d=2300.0, logt=7.28, [Fe/H]=-0.3
Kharchenko et al. (2013) E(B-V)=0.521, d=2300.0, logt=7.28, [Fe/H]=-0.3
Kharchenko et al. (2016) E(B-V)=0.521, d=2300.0, logt=7.28
Loktin & Popova (2017) E(B-V)=0.57, Dist=2094, logt=7.074
Cantat-Gaudin et al. (2018) dmode=2336.3
Soubiran et al. (2018) dmode=2336.3
Cantat-Gaudin et al. (2020) AVNN=1.69, DistPc=2197.0, AgeNN=7.18
Dias et al. (2021) Av=1.749, Dist=2246, logage=7.11, [Fe/H]=-0.1
Rain et al. (2021) E(B-V)=0.57, Dist=2336.3, log(Age)=7.06, NBSS=0
Jaehnig et al. (2021) dmode=2.394
Just et al. (2023) logt=7.28, logmt=3.893
Hunt & Reffert (2023) AV50=1.577, diffAV50=0.806, MOD50=11.864, logAge50=7.26
Cavallo et al. (2024) AV50=1.77, dMod50=12.12, logAge50=7.18, [Fe/H]50=0.08
Celli et al. (2024) Age=15.1, Mc=3678.7
Hunt & Reffert (2024) MassJ=2402.39, MassTot=2402.39
Zhang et al. (2024) [Fe/H]ANN=-0.0742, [Fe/H]MCMC=-0.0403
Almeida et al. (2025) AV=1.749, Dist=2246, logAge=7.11, MassRk=4596.1

Search coordinates in Bayestar19

Cluster region map

Objects with shared members

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0247 0.6 34.61 56.85 0.38 -0.62 -1.18 – 0.16