Ryu 556
0.08
UTI
0.0
CN
0.26
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
1.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.26 Loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Ryu 556 is a sparse, loose object of very low C3 quality. Its parallax locates it at a large distance, below the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 7 years.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
No fundamental parameters
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 269.684 | -27.346 | 0.125 | -2.842 | -7.558 | 82.325 |
| Bica et al. | 2019 | 269.685 | -27.349 | â | â | â | â |
đĄ Note: The UCC values are estimated from its identified members.
