Berkeley 18
(King 22; FSR 0731; OCL 420; OCL 419; MWSC 512)
|
UTI:
UCC Trust Index
Berkeley 18 is a very rich, very dense object of high C3 quality. It is very well-studied in the literature. |
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| C3 | N_50 |
r_50 |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AB | 1766 | 6.2 | ||||||||||||
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 80.55 | 45.4 | – | 0.33 | -4.52 | -5.5 |
| Chen et al. (2003) | 80.541 | 45.397 | – | – | – | – |
| Kharchenko et al. (2012) | 80.603 | 45.405 | – | -0.37 | -3.58 | – |
| Loktin & Popova (2017) | 80.55 | 45.4 | – | 0.22 | -1.212 | -5.5 |
| Bica et al. (2019) | 80.54 | 45.469 | – | – | – | – |
| Cantat-Gaudin et al. (2020) | 80.531 | 45.442 | 0.152 | 0.849 | -0.057 | – |
| Jaehnig et al. (2021) | 80.525 | 45.439 | 0.166 | 0.824 | -0.045 | – |
| Hunt & Reffert (2023) | 80.554 | 45.468 | 0.162 | 0.782 | -0.059 | -5.494 |
| Cavallo et al. (2024) | 80.54 | 45.441 | 0.165 | – | – | – |
| Hunt & Reffert (2024) | 80.554 | 45.468 | 0.162 | 0.782 | -0.059 | -5.494 |
| Hu & Soubiran (2025) | 80.54 | 45.441 | – | – | – | – |
| UCC | 80.54 | 45.44 | 0.17 | 0.776 | -0.079 | -2.731 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.46, Dist=5800.0, Age=9.63, [Fe/H]=-0.4 |
| Chen et al. (2003) | E(B-V)=0.46, HDis=5800, Age=4.26, [Fe/H]_1=0.02 |
| Kharchenko et al. (2012) | e_bv=0.45, distance=5800, log_age=9.63, metallicity=0.02 |
| Loktin & Popova (2017) | E(B-V)=0.548, Dmod=13.22, logt=9.16 |
| Cantat-Gaudin et al. (2020) | AVNN=1.53, DMNN=13.75, AgeNN=9.64 |
| Hunt & Reffert (2023) | AV50=1.846, diffAV50=1.839, MOD50=13.502, logAge50=9.165 |
| Cavallo et al. (2024) | AV50=1.57, dMod50=13.59, logAge50=9.49, [Fe/H]50=-0.07 |
| Hunt & Reffert (2024) | MassJ=6570.42 |
| Hu & Soubiran (2025) | MA22=-0.26, MA23f=-0.38, MA23g=-0.34, MZ23=-0.59, MK24=-0.34, MF24=-0.38 |
Search coordinates in Bayestar19