Dias 2
(MWSC 756)
Summary
Dias 2 is a moderately populated, very dense object of intermediate C3 quality. It is located at a moderate distance from the Sun, well below the mid-plane. It is well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 92.296 | 4.593 | – | -0.68 | -4.25 | – |
| Kharchenko et al. (2012) | 92.28 | 4.585 | – | -0.87 | 0.7 | – |
| Loktin & Popova (2017) | 92.295 | 4.594 | – | -0.411 | -0.263 | – |
| Cantat-Gaudin et al. (2018) | 92.291 | 4.573 | 0.21 | -0.772 | 1.24 | – |
| Bica et al. (2019) | 92.294 | 4.588 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 92.291 | 4.573 | 0.21 | -0.772 | 1.24 | – |
| Dias et al. (2021) | 92.294 | 4.585 | 0.226 | -0.75 | 1.223 | – |
| Hunt & Reffert (2023) | 92.289 | 4.571 | 0.224 | -0.804 | 1.284 | 46.064 |
| Cavallo et al. (2024) | 92.284 | 4.573 | 0.224 | – | – | – |
| Hunt & Reffert (2024) | 92.289 | 4.571 | 0.224 | -0.804 | 1.284 | 46.064 |
| Almeida et al. (2025) | 92.294 | 4.585 | – | – | – | – |
| Hu & Soubiran (2025) | 92.284 | 4.573 | – | – | – | – |
| UCC | 92.282 | 4.571 | 0.212 | -0.799 | 1.267 | 46.085 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.61, Dist=2835.0, Age=8.9 |
| Kharchenko et al. (2012) | e_bv=0.416, distance=2973, log_age=9.27 |
| Loktin & Popova (2017) | E(B-V)=0.226, Dist=3661, logt=8.4 |
| Cantat-Gaudin et al. (2018) | dmode=4187.6 |
| Cantat-Gaudin et al. (2020) | AVNN=0.47, DistPc=4009.0, AgeNN=9.24 |
| Dias et al. (2021) | Av=1.026, Dist=4030, logage=9.107, [Fe/H]=-0.242 |
| Hunt & Reffert (2023) | AV50=0.341, diffAV50=0.897, MOD50=13.191, logAge50=9.213 |
| Cavallo et al. (2024) | AV50=1.72, dMod50=12.8, logAge50=8.76, [Fe/H]50=-0.99 |
| Hunt & Reffert (2024) | MassJ=333.464, MassTot=349.396 |
| Almeida et al. (2025) | AV=1.026, Dist=4030, logAge=9.107, MassRk=391.2 |
| Hu & Soubiran (2025) | MA22=-0.31, MA23f=-0.47, MK24=-0.39, MF24=-0.34 |
Search coordinates in Bayestar19