UBC 388
0.44
UTI
0.56
CN
0.26
Cdens
1.0
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
62
Core radius and density
1.9 [pc], 1.3 [pc-2]
- CN 0.56 Moderately populated
- Cdens 0.26 Loose
- CC3 1.0 Very high quality
- Clit 0.19 Rarely 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 388 is a moderately populated, loose object of very high C3 quality. Its parallax locates it at a moderate distance, below 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 337.613 | 56.577 | 0.23 | -3.533 | -2.689 | -77.556 |
| Hunt & Reffert | 2024 | 337.564 | 56.586 | 0.228 | -3.528 | -2.696 | -77.956 |
| Celli et al. | 2024 | 337.636 | 56.552 | â | â | â | â |
| Cavallo et al. | 2024 | 337.574 | 56.548 | 0.228 | â | â | â |
| Hunt & Reffert | 2023 | 337.564 | 56.586 | 0.228 | -3.528 | -2.696 | -77.956 |
| Cantat-Gaudin et al. | 2020 | 337.636 | 56.552 | 0.241 | -3.544 | -2.645 | â |
| Castro-Ginard et al. | 2020 | 337.606 | 56.54 | 0.239 | -3.542 | -2.642 | 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 | 4.16 | 2.005 | 1.28 | 17 | -0.130 | 949 | â | â |
| Liu et al. | 2025 | 8.95 | 0.76 | â | 17 | â | â | â | â |
| Hunt & Reffert | 2024 | 4.54 | 2.31 | 1.28 | 41 | â | 896(1) | â | â |
| Celli et al. | 2024 | â | â | â | 16 | â | 1002 | â | â |
| Cavallo et al. | 2024 | 2.79 | 2.12 | â | 14 | -0.130 | â | â | â |
| Hunt & Reffert | 2023 | 4.54 | 2.31 | 1.28 | 41 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.61 | 1.89 | â | 15 | â | â | â | â |
| Kounkel et al. | 2020 | 3.78 | 1.73 | â | 28 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 303 along with OC_0179.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P64, along with OC_0179.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).
Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).