UBC 669
0.66
UTI
0.68
CN
1.0
Cdens
1.0
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
3.0 [arcmin]
- CN 0.68 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 669 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.
Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 251.802 | -46.666 | 0.403 | -1.8 | -4.098 | -19.974 |
| Hunt & Reffert | 2024 | 251.811 | -46.672 | 0.409 | -1.804 | -4.1 | -25.097 |
| Cavallo et al. | 2024 | 251.805 | -46.671 | 0.409 | â | â | â |
| Hunt & Reffert | 2023 | 251.811 | -46.672 | 0.409 | -1.804 | -4.1 | -25.097 |
| Cantat-Gaudin et al. | 2020 | 251.81 | -46.665 | 0.374 | -1.767 | -4.081 | â |
| Castro-Ginard et al. | 2020 | 251.827 | -46.664 | 0.375 | -1.782 | -4.088 | â |
đĄ 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 749* | â | â |
| Cavallo et al. | 2024 | 1.97 | 2.18 | â | 331 | -0.040 | â | â | â |
| Hunt & Reffert | 2023 | 2.27 | 1.84 | 1.47 | 267 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.38 | 1.90 | â | 295 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.