Berkeley 31
(MWSC 1032; Biurakan 7; OCL 513; FSR 1012)
Summary
Berkeley 31 is a rich, very dense object of high C3 quality. It is located at a large distance from the Sun, well above the mid-plane. It is very well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 104.4 | 8.267 | – | -2.43 | -2.33 | 55.7 |
| Chen et al. (2003) | 104.378 | 8.288 | – | -4.3 | -3.97 | 61.0 |
| Kharchenko et al. (2007) | 104.4 | 8.27 | – | 0.04 | – | – |
| Kharchenko et al. (2013) | 104.395 | 8.298 | – | -1.06 | -5.13 | 61.0 |
| Kharchenko et al. (2016) | 104.388 | 8.299 | – | – | – | – |
| Loktin & Popova (2017) | 104.4 | 8.268 | – | -2.43 | -2.33 | 61.0 |
| Cantat-Gaudin et al. (2018) | 104.406 | 8.285 | 0.141 | 0.169 | -0.926 | – |
| Bica et al. (2019) | 104.399 | 8.292 | – | – | – | – |
| Donor et al. (2020) | 104.395 | 8.298 | – | 0.24 | -1.08 | 59.6 |
| Cantat-Gaudin et al. (2020) | 104.406 | 8.285 | 0.141 | 0.169 | -0.926 | – |
| Dias et al. (2021) | 104.396 | 8.281 | 0.128 | 0.178 | -0.905 | – |
| Rain et al. (2021) | 104.406 | 8.285 | 0.141 | 0.169 | -0.926 | – |
| Jaehnig et al. (2021) | 104.406 | 8.279 | 0.172 | 0.055 | -0.884 | – |
| Just et al. (2023) | 104.388 | 8.299 | – | – | – | – |
| Hunt & Reffert (2023) | 104.407 | 8.288 | 0.123 | 0.114 | -0.922 | 65.271 |
| Cavallo et al. (2024) | 104.407 | 8.288 | 0.127 | – | – | – |
| Hunt & Reffert (2024) | 104.407 | 8.288 | 0.123 | 0.114 | -0.922 | 65.271 |
| Zhang et al. (2024) | 104.407 | 8.288 | – | – | – | – |
| Almeida et al. (2025) | 104.396 | 8.281 | – | – | – | – |
| Hu & Soubiran (2025) | 104.407 | 8.288 | – | – | – | – |
| UCC | 104.407 | 8.285 | 0.141 | 0.147 | -0.932 | 61.314 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.08, Dist=8272.0, Age=9.313, [Fe/H]=-0.4 |
| Chen et al. (2003) | E(B-V)=0.08, HDis=8272, Age=2.05, [Fe/H]_1=-0.5, [Fe/H]_2=-0.5 |
| Kharchenko et al. (2013) | E(B-V)=0.073, d=6242.0, logt=9.3, [Fe/H]=-0.4 |
| Kharchenko et al. (2016) | E(B-V)=0.073, d=6242.0, logt=9.3 |
| Loktin & Popova (2017) | E(B-V)=0.08, Dist=8272, logt=9.313 |
| Cantat-Gaudin et al. (2018) | dmode=5900.6 |
| Donor et al. (2020) | Fe/H=-0.45 |
| Cantat-Gaudin et al. (2020) | AVNN=0.35, DistPc=7177.0, AgeNN=9.45 |
| Dias et al. (2021) | Av=0.358, Dist=6180, logage=9.567, [Fe/H]=-0.129 |
| Rain et al. (2021) | E(B-V)=0.08, Dist=5900.6, log(Age)=9.31, NBSS=6 |
| Jaehnig et al. (2021) | dmode=6.293 |
| Just et al. (2023) | logt=9.3, logmt=3.212 |
| Hunt & Reffert (2023) | AV50=0.426, diffAV50=2.122, MOD50=13.903, logAge50=9.076 |
| Cavallo et al. (2024) | AV50=0.52, dMod50=13.24, logAge50=9.59, [Fe/H]50=-0.41 |
| Hunt & Reffert (2024) | MassJ=1130.51, MassTot=1194.05 |
| Zhang et al. (2024) | [Fe/H]ANN=-0.2887, [Fe/H]MCMC=-0.2758 |
| Almeida et al. (2025) | AV=0.358, Dist=6180, logAge=9.567, MassRk=1519.9 |
| Hu & Soubiran (2025) | MA22=-0.29, MA23f=-0.6, MA23g=-0.4, MZ23=-0.48, MK24=-0.39, MF24=-0.44 |
Search coordinates in Bayestar19