UBC 1525
0.62
UTI
0.52
CN
1.0
Cdens
1.0
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
8.3 [N/pc2]
- CN 0.52 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.3 Poorly 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 1525 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, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly 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 | 216.46 | -61.905 | 0.445 | -4.096 | -2.72 | -47.571 |
| Hunt & Reffert | 2024 | 216.456 | -61.889 | 0.445 | -4.113 | -2.722 | -47.559 |
| Cavallo et al. | 2024 | 216.485 | -61.903 | 0.448 | â | â | â |
| Hunt & Reffert | 2023 | 216.456 | -61.889 | 0.445 | -4.113 | -2.722 | -47.559 |
| Castro-Ginard et al. | 2022 | 216.45 | -61.9 | 0.45 | -4.09 | -2.7 | 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 | 2.205 | 1.255 | 0.73 | 90 | -0.030 | 279 | â | â |
| Liu et al. | 2025 | 4.07 | 0.53 | â | 41 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 279(1) | â | â |
| Cavallo et al. | 2024 | 1.93 | 1.49 | â | 275 | -0.030 | â | â | â |
| Hunt & Reffert | 2023 | 2.05 | 1.28 | 0.73 | 117 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 2.36 | 1.23 | â | 62 | 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 365 along with Theia_2819.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P68, along with Theia_2819.
Cavallo et al. (2024)
Gold sample.