OCSN 12
0.10
UTI
0.0
CN
0.15
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.7 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.38 Low quality
- Clit 0.0 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
OCSN 12 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low 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 was recently reported 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 | 276.366 | 21.462 | 2.199 | -1.367 | -6.201 | -20.252 |
| Cavallo et al. | 2024 | 276.819 | 21.485 | 2.159 | â | â | â |
| Hunt & Reffert | 2023 | 276.514 | 21.421 | 2.166 | -1.231 | -6.274 | -19.327 |
| Qin et al. | 2023 | 276.54 | 21.08 | 2.31 | -1.45 | -6.09 | -17.25 |
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 | 0.49 | 0.53 | 0.63 | 30 | 0.260 | â | â | â |
| Cavallo et al. | 2024 | 0.49 | 0.85 | â | 30 | 0.260 | â | â | â |
| Hunt & Reffert | 2023 | 0.45 | 0.33 | 0.63 | 187 | â | â | â | â |
| Qin et al. | 2023 | 0.55 | 0.53 | â | 28 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.