UBC 1545
0.49
UTI
0.45
CN
0.76
Cdens
0.75
CC3
0.25
Clit
1.0
Cdup
Stellar density (N50/rad)
3.8 [N/pc2]
- CN 0.45 Poorly populated
- Cdens 0.76 Dense
- CC3 0.75 High quality
- Clit 0.25 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 1545 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 242.71 | -50.981 | 0.406 | -1.807 | -3.245 | -35.154 |
| Hunt & Reffert | 2024 | 242.616 | -51.008 | 0.404 | -1.803 | -3.224 | -38.323 |
| Cavallo et al. | 2024 | 242.819 | -50.962 | 0.403 | â | â | â |
| Hunt & Reffert | 2023 | 242.616 | -51.008 | 0.404 | -1.803 | -3.224 | -38.323 |
| Castro-Ginard et al. | 2022 | 242.71 | -50.98 | 0.43 | -1.81 | -3.24 | 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 | 2.28 | 3.38 | 2.58 | 59 | -0.250 | 354 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 354(1) | â | â |
| Cavallo et al. | 2024 | 1.79 | 3.70 | â | 162 | -0.250 | â | â | â |
| Hunt & Reffert | 2023 | 2.28 | 3.38 | 2.58 | 59 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 3.13 | 3.38 | â | 19 | 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 (not dynamically associated) P148, along with HSC_2754.
Cavallo et al. (2024)
Gold sample.