FoF 1540
(LP 1540)
Summary
FoF 1540 is a rich, very dense object of very high C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is moderately studied in the literature.
This object shares a large percentage of members with 2 later reported entries.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Liu & Pang (2019) | 170.199 | -59.306 | 0.337 | -5.341 | 1.801 | – |
| Cantat-Gaudin et al. (2020) | 170.219 | -59.302 | 0.346 | -5.245 | 1.807 | – |
| Dias et al. (2021) | 170.226 | -59.302 | 0.353 | -5.245 | 1.811 | 24.983 |
| Hunt & Reffert (2023) | 170.212 | -59.301 | 0.341 | -5.261 | 1.808 | -20.544 |
| Cavallo et al. (2024) | 170.212 | -59.291 | 0.346 | – | – | – |
| Hunt & Reffert (2024) | 170.212 | -59.301 | 0.341 | -5.261 | 1.808 | -20.544 |
| Almeida et al. (2025) | 170.226 | -59.302 | – | – | – | – |
| Hu & Soubiran (2025) | 170.212 | -59.291 | – | – | – | – |
| UCC | 170.231 | -59.295 | 0.35 | -5.24 | 1.817 | -22.796 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Liu & Pang (2019) | Age=1.02, Z=0.5 |
| Cantat-Gaudin et al. (2020) | AVNN=0.49, DistPc=2539.0, AgeNN=9.21 |
| Dias et al. (2021) | Av=0.814, Dist=2365, logage=9.142, [Fe/H]=-0.09 |
| Hunt & Reffert (2023) | AV50=0.545, diffAV50=0.484, MOD50=12.117, logAge50=9.022 |
| Cavallo et al. (2024) | AV50=0.81, dMod50=11.74, logAge50=9.15, [Fe/H]50=0.05 |
| Hunt & Reffert (2024) | MassJ=648.875, MassTot=712.362 |
| Almeida et al. (2025) | AV=0.814, Dist=2365, logAge=9.142, MassRk=301.1 |
| Hu & Soubiran (2025) | MA22=-0.29, MA23f=-0.24, MA23g=-0.16, MZ23=-0.23, MK24=-0.23, MF24=-0.21 |
Search coordinates in Bayestar19
Cluster region map
Objects with shared members
| Cluster | % | RA | DEC | Plx | pmRA | pmDE | Rv | UTI |
|---|---|---|---|---|---|---|---|---|
| UBC 271 | 79.5 | 170.23 | -59.3 | 0.35 | -5.24 | 1.82 | -22.8 | 0.0 |
| CWWDL 2753 | 18.0 | 170.23 | -59.29 | 0.35 | -5.35 | 1.82 | -21.18 | 0.04 |