OCSN 76
0.33
UTI
0.47
CN
0.23
Cdens
0.75
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
47
Core radius and density
2.6 [pc], 1.2 [pc-2]
- CN 0.47 Poorly populated
- Cdens 0.23 Very loose
- CC3 0.75 High 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
OCSN 76 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 99.563 | -16.652 | 2.166 | -4.161 | 4.953 | 25.502 |
| Liu et al. | 2025 | 99.64 | -16.76 | 2.16 | -4.3 | 5.02 | 24.22 |
| Swiggum et al. | 2024 | 99.638 | -16.765 | 2.162 | -4.295 | 5.017 | 25.741 |
| Cavallo et al. | 2024 | 100.419 | -18.047 | 2.163 | â | â | â |
| Hunt & Reffert | 2023 | 99.638 | -16.765 | 2.162 | -4.295 | 5.017 | 24.223 |
| Qin et al. | 2023 | 99.67 | -16.71 | 2.25 | -4.52 | 4.73 | 26.37 |
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 | 0.47 | 0.325 | 0.75 | 37 | 0.090 | 199 | â | â |
| Liu et al. | 2025 | 0.56 | 0.13 | â | 37 | â | â | â | â |
| Swiggum et al. | 2024 | 0.45 | â | â | 37 | â | 199 | â | â |
| Cavallo et al. | 2024 | 0.47 | 0.47 | â | 14 | 0.090 | â | â | â |
| Hunt & Reffert | 2023 | 0.45 | 0.18 | 0.75 | 37 | â | â | â | â |
| Qin et al. | 2023 | 0.62 | 0.82 | â | 63 | â | â | â | â |
Liu et al. (2025)
Classified as primordial binary cluster 322 along with CWNU_410, and of multiple system 25 along with CWNU_410 and CWNU_1227.
Palma et al. (2025)
Part of multiple system G230, along with CWNU_410 and Theia_319.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.97 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).