O'Neal 9
(Cmg 65)
0.17
UTI
0.26
CN
0.34
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
1.7 [N/pc2]
- CN 0.26 Poorly populated
- Cdens 0.34 Loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
MOCA
Overview
O'Neal 9 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a moderate distance, well 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.
⚠️ 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999– | 115.262 | 21.776 | 0.474 | -1.08 | -4.417 | 43.717 |
| Bica et al. | 2019 | 115.231 | 21.811 | – | – | – | – |
💡 Note: The UCC values are estimated from its identified members.
