OC 0416
0.18
UTI
0.0
CN
0.07
Cdens
0.62
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.6 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.62 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 0416 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, well below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the absorption, age, and metallicity parameters (see Parameters). It is rarely studied in the literature.
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 | 110.201 | -27.383 | 0.119 | -0.809 | 1.98 | 108.204 |
| Hu & Soubiran | 2025 | 110.206 | -27.392 | â | â | â | â |
| Hunt & Reffert | 2024 | 110.194 | -27.388 | 0.111 | -0.811 | 1.992 | 105.042 |
| Cavallo et al. | 2024 | 110.206 | -27.392 | 0.111 | â | â | â |
| Hunt & Reffert | 2023 | 110.194 | -27.388 | 0.111 | -0.811 | 1.992 | 105.042 |
| Hao et al. | 2022 | 110.209 | -27.395 | 0.124 | -0.822 | 1.978 | 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 | 11.05 | 1.0 | 2.06 | 1394 | -0.330 | 550 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.330(5) | â | â | â |
| Hunt & Reffert | 2024 | 11.05 | 1.00 | 2.06 | 794 | â | 550(1) | â | â |
| Cavallo et al. | 2024 | 5.11 | 1.45 | â | 2754 | -1.020 | â | â | â |
| Hunt & Reffert | 2023 | 11.05 | 1.00 | 2.06 | 794 | â | â | â | â |
| Hao et al. | 2022 | â | 0.18 | â | 1995 | 0.216 | 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: 0.61 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.61 (50th percentile).