OCSN 96
0.67
UTI
0.86
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.99
Cdup
Stellar density (N50/rad)
21.6 [N/pc2]
- CN 0.86 Rich
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 Poorly studied
- Cdup 0.99 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 96 is a rich, very dense object of very high 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, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It was recently reported in the literature.
Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry, and a very small percentage with at least one entry reported in the same catalogue. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 240.859 | -22.579 | 7.024 | -11.739 | -23.903 | -7.427 |
| Liu et al. | 2025 | 240.43 | -22.71 | 7.06 | -11.54 | -23.89 | -11.8 |
| Swiggum et al. | 2024 | 240.43 | -22.709 | 7.065 | -11.541 | -23.888 | -6.029 |
| Hunt & Reffert | 2024 | 240.43 | -22.709 | 7.065 | -11.541 | -23.888 | -11.803 |
| Cavallo et al. | 2024 | 240.832 | -22.305 | 7.067 | â | â | â |
| Hunt & Reffert | 2023 | 240.43 | -22.709 | 7.065 | -11.541 | -23.888 | -11.803 |
| Qin et al. | 2023 | 240.27 | -22.91 | 6.99 | -12.1 | -23.88 | -6.17 |
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 | 0.14 | 0.47 | 1.16 | 6 | -0.110 | 146 | â | â |
| Liu et al. | 2025 | 0.14 | 0.17 | â | 15 | â | â | â | â |
| Swiggum et al. | 2024 | 0.14 | â | â | 5 | â | 165 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 126(1) | â | â |
| Cavallo et al. | 2024 | 0.14 | 1.33 | â | 6 | -0.110 | â | â | â |
| Hunt & Reffert | 2023 | 0.14 | 0.40 | 1.16 | 5 | â | â | â | â |
| Qin et al. | 2023 | 0.18 | 0.54 | â | 9 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 325 along with OCSN_100, and as primordial binary cluster 326 along with OCSN_98, and of multiple system 72 along with HSC_2907, HSC_2931, OCSN_98, OCSN_100 and HSC_2919.
Palma et al. (2025)
Part of multiple system G172, along with OCSN_98, HSC_2907, HSC_2931, HSC_2919 and OCSN_100.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).