Ryu 689
0.32
UTI
0.33
CN
0.76
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
1.6 [arcmin]
- CN 0.33 Poorly populated
- Cdens 0.76 Dense
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
Ryu 689 is a poorly populated, dense object of intermediate C3 quality. Its parallax locates it at a large distance, above 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.
No fundamental parameters
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 272.443 | -17.642 | 0.158 | -2.397 | -5.574 | -50.34 |
| Bica et al. | 2019 | 272.434 | -17.633 | â | â | â | â |
đĄ Note: The UCC values are estimated from its identified members.
