OC 0254
0.29
UTI
0.27
CN
0.18
Cdens
0.5
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
3.0 [arcmin]
- CN 0.27 Poorly populated
- Cdens 0.18 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
OC 0254 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~6.29 kpc) differs significantly from the median photometric distance (~4.78 kpc).
Distant
Moderate extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 42.529 | 62.082 | 0.159 | -0.6 | 0.155 | â |
| Hunt & Reffert | 2024 | 42.538 | 62.093 | 0.185 | -0.585 | 0.156 | -69.983 |
| Cavallo et al. | 2024 | 42.593 | 62.061 | 0.184 | â | â | â |
| Hunt & Reffert | 2023 | 42.538 | 62.093 | 0.185 | -0.585 | 0.156 | -69.983 |
| Hao et al. | 2022 | 42.59 | 62.028 | 0.157 | -0.582 | 0.148 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 946* | â | â |
| Cavallo et al. | 2024 | 3.89 | 2.15 | â | 155 | 0.430 | â | â | â |
| Hunt & Reffert | 2023 | 5.67 | 2.39 | 2.50 | 54 | â | â | â | â |
| Hao et al. | 2022 | â | 3.70 | â | 3 | 0.112 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.