Ruprecht 20
Summary
Ruprecht 20 is a sparse, very loose object of very low C3 quality. It is located at a moderate distance from the Sun, below the mid-plane. It is poorly studied in the literature, with no articles listed in the last 8 years.
Warning: contains less than 25 stars with P>0.5 estimated.
Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicates that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Positions
| Reference | RA | DEC | Plx | pmRA | pmDE | Rv |
|---|---|---|---|---|---|---|
| Dias et al. (2002) | 111.679 | -28.817 | – | -0.67 | 1.0 | – |
| Kharchenko et al. (2012) | 111.642 | -28.8 | – | -1.83 | 1.88 | – |
| Loktin & Popova (2017) | 111.675 | -28.817 | – | -2.329 | 1.424 | 29.9 |
| UCC | 111.666 | -28.806 | 0.266 | -1.512 | 2.721 | 134.539 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.1, Dist=1208.0, Age=8.5, [Fe/H]=-0.29 |
| Kharchenko et al. (2012) | e_bv=0.125, distance=1871, log_age=9.4 |
| Loktin & Popova (2017) | E(B-V)=0.344, Dist=3403, logt=8.9 |
Search coordinates in Bayestar19