Basel 18
Summary
Basel 18 is a poorly populated, very dense object of high C3 quality. It is located at a relatively close distance from the Sun, near the mid-plane. It is very well-studied in the literature.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 201.933 | -62.313 | – | -7.52 | -3.13 | 0.3 |
| Piskunov et al. (2008) | 202.001 | -62.351 | – | – | – | – |
| Kharchenko et al. (2012) | 201.968 | -62.33 | – | -5.76 | -4.63 | – |
| Loktin & Popova (2017) | 201.93 | -62.313 | – | -7.031 | 0.169 | -22.0 |
| Cantat-Gaudin et al. (2018) | 201.967 | -62.306 | 0.508 | -5.008 | -2.05 | – |
| Dias et al. (2019) | 201.933 | -62.313 | 0.526 | -5.063 | -2.081 | 12.24 |
| Cantat-Gaudin et al. (2020) | 201.967 | -62.306 | 0.508 | -5.008 | -2.05 | – |
| Dias et al. (2021) | 201.984 | -62.309 | 0.516 | -5.01 | -2.061 | – |
| Hunt & Reffert (2023) | 201.949 | -62.303 | 0.545 | -5.06 | -1.987 | -15.735 |
| Cavallo et al. (2024) | 201.983 | -62.373 | 0.544 | – | – | – |
| Celli et al. (2024) | 201.967 | -62.306 | – | – | – | – |
| Hunt & Reffert (2024) | 201.949 | -62.303 | 0.545 | -5.06 | -1.987 | -15.735 |
| Almeida et al. (2025) | 201.984 | -62.309 | – | – | – | – |
| UCC | 201.967 | -62.304 | 0.536 | -5.048 | -2.03 | -33.559 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.515, Dist=2226.0, Age=7.59, [Fe/H]=0.043 |
| Piskunov et al. (2008) | E(B-V)=0.51, Dist=2226, logt=7.92, logMA=3.276 |
| Kharchenko et al. (2012) | e_bv=0.51, distance=2226, log_age=7.92, metallicity=0.043 |
| Loktin & Popova (2017) | E(B-V)=0.519, Dist=2186, logt=7.582 |
| Cantat-Gaudin et al. (2018) | dmode=1861.7 |
| Dias et al. (2019) | E(B-V)=0.29, Dist=1869, logAge=7.242, Z=0.016 |
| Cantat-Gaudin et al. (2020) | AVNN=0.65, DistPc=1863.0, AgeNN=7.44 |
| Dias et al. (2021) | Av=1.115, Dist=1797, logage=7.313, [Fe/H]=0.244 |
| Hunt & Reffert (2023) | AV50=0.91, diffAV50=0.956, MOD50=11.226, logAge50=7.505 |
| Cavallo et al. (2024) | AV50=0.69, dMod50=10.92, logAge50=7.96, [Fe/H]50=-0.31 |
| Celli et al. (2024) | Age=27.5, Mc=211.8 |
| Hunt & Reffert (2024) | MassJ=343.807, MassTot=343.807 |
| Almeida et al. (2025) | AV=1.115, Dist=1797, logAge=7.313, MassRk=253.7 |
Search coordinates in Bayestar19