OC 0477
0.16
UTI
0.0
CN
0.1
Cdens
0.5
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
2.4 [pc], 0.5 [pc-2]
- CN 0.0 Sparse
- Cdens 0.1 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.1 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
OC 0477 is a sparse, very loose object of intermediate 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, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 125.65 | -45.617 | 0.297 | -3.053 | 3.846 | 46.201 |
| Hu & Soubiran | 2025 | 125.645 | -45.601 | â | â | â | â |
| Hunt & Reffert | 2024 | 125.663 | -45.598 | 0.285 | -3.04 | 3.85 | 48.671 |
| Cavallo et al. | 2024 | 125.645 | -45.601 | 0.289 | â | â | â |
| Hunt & Reffert | 2023 | 125.663 | -45.598 | 0.285 | -3.04 | 3.85 | 48.671 |
| Hao et al. | 2022 | 125.66 | -45.625 | 0.335 | -3.062 | 3.947 | 6.927 |
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 | 3.01 | 1.745 | 1.06 | 406 | 0.265 | 327 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.170(5) | â | â | â |
| Hunt & Reffert | 2024 | 3.01 | 2.03 | 1.06 | 407 | â | 327(1) | â | â |
| Cavallo et al. | 2024 | 2.81 | 1.46 | â | 794 | 0.730 | â | â | â |
| Hunt & Reffert | 2023 | 3.01 | 2.03 | 1.06 | 406 | â | â | â | â |
| Hao et al. | 2022 | â | 1.04 | â | 200 | 0.265 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.91 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.91 (50th percentile).