Ryu 401
0.23
UTI
0.0
CN
1.0
Cdens
0.25
CC3
0.0
Clit
0.92
Cdup
Radius (P>50% members)
3.1 [arcmin]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.92 Very likely unique
Overview
Ryu 401 is a sparse, very dense object of low C3 quality. Its parallax locates it at a relatively close distance, near 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.
Note: This is very likely a unique object, which shares a very small percentage of members with at least one previously reported entry, and a very small percentage with at least one entry reported in the same catalogue. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.92) 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 | 257.946 | -38.609 | 0.661 | -1.41 | -3.07 | -39.664 |
| Bica et al. | 2019 | 257.936 | -38.608 | â | â | â | â |
đĄ Note: The UCC values are estimated from its identified members.
