OC 0666
0.49
UTI
0.43
CN
1.0
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
6.4 [arcmin]
- CN 0.43 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
OC 0666 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.
Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.
Very close
Moderate extinction
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | – | 242.166 | -39.063 | 6.311 | -10.003 | -23.481 | -2.454 |
| Cavallo et al. | 2024 | 242.263 | -39.055 | 6.279 | – | – | – |
| Hunt & Reffert | 2023 | 242.191 | -39.085 | 6.277 | -9.866 | -23.496 | 3.819 |
| Hao et al. | 2022 | 242.143 | -39.076 | 6.314 | -9.81 | -23.501 | -4.243 |
💡 Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.16 | 2.12 | – | 9 | 0.010 | – | – | – |
| Hunt & Reffert | 2023 | 0.15 | 1.94 | 1.87 | 6 | – | – | – | – |
| Hao et al. | 2022 | – | 1.39 | – | 4 | 0.323 | – | – | – |
💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
Hunt & Reffert (2024): Classified as a moving group.
Cavallo et al. (2024): Silver sample.