UBC 169
0.73
UTI
0.47
CN
1.0
Cdens
1.0
CC3
0.6
Clit
1.0
Cdup
Stellar density (N50/rad)
8.5 [N/pc2]
- CN 0.47 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.6 Moderately studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 169 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.
Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 342.633 | 49.492 | 0.695 | -3.967 | -3.383 | -29.598 |
| Li et al. | 2025 | 342.627 | 49.494 | 0.704 | -4.009 | -3.378 | â |
| Almeida et al. | 2025 | 342.655 | 49.496 | â | â | â | â |
| Zhang et al. | 2024 | 342.614 | 49.491 | â | â | â | â |
| Hunt & Reffert | 2024 | 342.614 | 49.491 | 0.692 | -3.98 | -3.385 | -28.21 |
| Cavallo et al. | 2024 | 342.649 | 49.49 | 0.693 | â | â | â |
| Hunt & Reffert | 2023 | 342.614 | 49.491 | 0.692 | -3.98 | -3.385 | -28.21 |
| Almeida et al. | 2023 | 342.627 | 49.494 | â | â | â | â |
| Tarricq et al. | 2022 | 342.662 | 49.494 | 0.684 | -3.963 | -3.393 | â |
| Dias et al. | 2021 | 342.655 | 49.496 | 0.691 | -4.008 | -3.356 | -29.614 |
| Cantat-Gaudin et al. | 2020 | 342.627 | 49.494 | 0.704 | -4.009 | -3.378 | â |
| Castro-Ginard et al. | 2020 | 342.652 | 49.486 | 0.7 | -4.033 | -3.377 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.34 | 0.46 | 0.52 | 307 | -0.091 | 144 | 0.58 | â |
| Li et al. | 2025 | 1.33 | 0.46 | â | 349 | -0.062 | â | â | â |
| Almeida et al. | 2025 | 1.33 | 0.56 | â | 307 | â | 144 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.091(1) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 176(1) | â | â |
| Cavallo et al. | 2024 | 1.35 | 0.42 | â | 355 | 0.260 | â | â | â |
| Hunt & Reffert | 2023 | 1.38 | 0.28 | 0.52 | 501 | â | â | â | â |
| Almeida et al. | 2023 | 1.37 | 0.59 | â | 299 | -0.121 | 136(1) | 0.58 | â |
| Tarricq et al. | 2022 | 1.30 | â | â | 302 | â | â | â | â |
| Dias et al. | 2021 | 1.33 | 0.56 | â | 307 | -0.100 | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.35 | 0.26 | â | 295 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P600, along with UBC_6.
Cavallo et al. (2024)
Gold sample.
Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.