Ruprecht 57
(OCL 686; ESO 494 37; MWSC 1457)
Summary
Ruprecht 57 is a sparse, very loose object of low C3 quality. It is located at a moderate distance from the Sun, above the mid-plane. It is poorly studied in the literature, with no articles listed in the last 6 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) | 123.771 | -26.967 | – | -0.86 | 4.19 | – |
| Kharchenko et al. (2012) | 123.795 | -26.97 | – | -5.02 | 5.53 | – |
| Bica et al. (2019) | 123.766 | -26.975 | – | – | – | – |
| UCC | 123.808 | -26.932 | 0.245 | -2.587 | 4.071 | 29.044 |
Estimated members
Explore data in Colab
Fundamental parameters
| Reference | Values |
|---|---|
| Dias et al. (2002) | E(B-V)=0.208, Dist=1764.0, Age=8.975 |
| Kharchenko et al. (2012) | e_bv=0.208, distance=1764, log_age=8.975 |
Search coordinates in Bayestar19