UBC 455
0.65
UTI
0.6
CN
1.0
Cdens
0.75
CC3
0.44
Clit
1.0
Cdup
Radius (P>50% members)
3.0 [arcmin]
- CN 0.6 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.44 Poorly studied
- Cdup 1.0 Unique
Overview
UBC 455 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, above 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 age and metallicity parameters (see Parameters). It is poorly studied in the literature.
Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.
Distant
Low 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 | 115.385 | -17.576 | 0.269 | -1.962 | 2.455 | 89.22 |
| Li et al. | 2025 | 115.386 | -17.584 | 0.243 | -1.943 | 2.447 | â |
| Hunt & Reffert | 2024 | 115.383 | -17.577 | 0.273 | -1.969 | 2.457 | â |
| Celli et al. | 2024 | 115.386 | -17.584 | â | â | â | â |
| Cavallo et al. | 2024 | 115.384 | -17.581 | 0.27 | â | â | â |
| Hunt & Reffert | 2023 | 115.383 | -17.577 | 0.273 | -1.969 | 2.457 | â |
| Cantat-Gaudin et al. | 2020 | 115.386 | -17.584 | 0.243 | -1.943 | 2.447 | â |
| Castro-Ginard et al. | 2020 | 115.393 | -17.593 | 0.244 | -1.951 | 2.453 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Li et al. | 2025 | 3.06 | 0.78 | â | 196 | -0.164 | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 419* | â | â |
| Celli et al. | 2024 | â | â | â | 13 | â | 159 | â | â |
| Cavallo et al. | 2024 | 3.01 | 0.35 | â | 372 | 0.420 | â | â | â |
| Hunt & Reffert | 2023 | 3.18 | 0.48 | 1.51 | 423 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 3.53 | 0.77 | â | 13 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.