Melotte 169
(Collinder 327; VDBH 224; IC 4651; OCL 987; vdBergh-Hagen 224; ESO 228 02; FSR 1738; MWSC 2590; FoF 2053)
Summary
Melotte 169 is a very rich, very dense object of very high C3 quality. It is located at a close 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.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 261.204 | -49.933 | – | -1.57 | -2.62 | -30.8 |
| Chen et al. (2003) | 261.197 | -49.928 | – | 1.5 | -5.35 | -31.0 |
| Piskunov et al. (2008) | 261.197 | -49.928 | – | – | – | – |
| Kharchenko et al. (2012) | 261.225 | -49.935 | – | -0.85 | -2.2 | – |
| Loktin & Popova (2017) | 261.195 | -49.939 | – | -2.078 | -3.679 | -31.0 |
| Cantat-Gaudin et al. (2018) | 261.212 | -49.917 | 1.056 | -2.41 | -5.064 | – |
| Bica et al. (2019) | 261.214 | -49.947 | – | – | – | – |
| Soubiran et al. (2018) | 261.212 | -49.917 | – | – | – | -30.33 |
| Liu & Pang (2019) | 261.216 | -49.918 | 1.059 | -2.408 | -5.053 | – |
| Cantat-Gaudin et al. (2020) | 261.212 | -49.917 | 1.056 | -2.41 | -5.064 | – |
| Dias et al. (2021) | 261.213 | -49.916 | 1.06 | -2.412 | -5.05 | -30.029 |
| Rain et al. (2021) | 261.212 | -49.917 | 1.056 | -2.41 | -5.064 | – |
| Jaehnig et al. (2021) | 261.194 | -49.924 | 1.087 | -2.419 | -5.029 | – |
| Tarricq et al. (2022) | 261.198 | -49.929 | 1.062 | -2.425 | -5.049 | – |
| He et al. (2022) | 261.202 | -49.923 | 1.064 | -2.429 | -5.053 | – |
| Hunt & Reffert (2023) | 261.192 | -49.929 | 1.061 | -2.433 | -5.057 | -29.704 |
| Cavallo et al. (2024) | 261.224 | -49.918 | 1.061 | – | – | – |
| Hunt & Reffert (2024) | 261.192 | -49.929 | 1.061 | -2.433 | -5.057 | -29.704 |
| Alfonso et al. (2024) | 261.226 | -49.902 | 1.02 | -2.423 | -5.063 | – |
| Almeida et al. (2025) | 261.213 | -49.916 | – | – | – | – |
| Hu & Soubiran (2025) | 261.224 | -49.918 | – | – | – | – |
| UCC | 261.216 | -49.916 | 1.062 | -2.429 | -5.053 | -29.922 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.116, Dist=888.0, Age=9.057, [Fe/H]=0.15 |
| Chen et al. (2003) | E(B-V)=0.116, HDis=888, Age=1.14, [Fe/H]_1=0.09, [Fe/H]_2=0.0 |
| Piskunov et al. (2008) | E(B-V)=0.12, Dist=888, logt=8.92, logMA=2.085 |
| Kharchenko et al. (2012) | e_bv=0.121, distance=888, log_age=9.25, metallicity=-0.128 |
| Loktin & Popova (2017) | E(B-V)=0.117, Dist=893, logt=9.057 |
| Cantat-Gaudin et al. (2018) | dmode=921.3 |
| Soubiran et al. (2018) | dmode=921.3 |
| Liu & Pang (2019) | Age=0.295, Z=-2.0 |
| Cantat-Gaudin et al. (2020) | AVNN=0.42, DistPc=982.0, AgeNN=9.22 |
| Dias et al. (2021) | Av=0.351, Dist=920, logage=9.315, [Fe/H]=0.12 |
| Rain et al. (2021) | E(B-V)=0.11, Dist=921.3, log(Age)=9.05, NBSS=5 |
| Jaehnig et al. (2021) | dmode=0.921 |
| Tarricq et al. (2022) | Dist=962, logAgeNN=9.22 |
| He et al. (2022) | A0=0.6, logAge=9.15 |
| Hunt & Reffert (2023) | AV50=0.192, diffAV50=0.234, MOD50=9.746, logAge50=9.221 |
| Cavallo et al. (2024) | AV50=0.5, dMod50=9.89, logAge50=9.17, [Fe/H]50=0.2 |
| Hunt & Reffert (2024) | MassJ=2328.73, MassTot=2328.73 |
| Alfonso et al. (2024) | AV=0.41333, MOD=9.96190, logAge=9.16948, Z=0.11707 |
| Almeida et al. (2025) | AV=0.351, Dist=920, logAge=9.315, MassRk=1946.7 |
| Hu & Soubiran (2025) | MA22=-0.18, MA23f=-0.05, MA23g=0.06, MZ23=-0.04, MK24=-0.03, MF24=-0.01 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| CWNU 1213 | 2.3 | 261.23 | -49.89 | 1.03 | -2.31 | -5.04 | -30.84 | 0.06 |