OCSN 6
0.34
UTI
0.55
CN
0.51
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
60
Core radius and density
1.4 [pc], 2.6 [pc-2]
- CN 0.55 Moderately populated
- Cdens 0.51 Moderately dense
- CC3 0.62 Intermediate 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 6 is a moderately populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a very close* distance, near the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster, but with a large variance across recent sources for the distance and age parameters (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~0.42 kpc) differs significantly from the median photometric distance (~0.98 kpc).
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 276.808 | -5.96 | 2.393 | 0.26 | -11.245 | -39.452 |
| Hunt & Reffert | 2024 | 276.969 | -5.909 | 2.302 | -0.041 | -10.612 | -17.526 |
| Qin et al. | 2023 | 276.81 | -5.96 | 2.4 | 0.18 | -11.23 | -23.25 |
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 | 0.98 | 2.5 | 2.4 | 332 | â | 59 | â | â |
| Hunt & Reffert | 2024 | 0.41 | 1.81 | 2.40 | 33 | â | 59(1) | â | â |
| Qin et al. | 2023 | 1.55 | 3.19 | â | 631 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G152, along with Theia_711 and HSC_236.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.10 (50th percentile).
Hunt & Reffert (2023)
Classified as moving group. CMD class: 0.10 (50th percentile).