CWNU 102
0.54
UTI
0.35
CN
1.0
Cdens
0.62
CC3
0.35
Clit
1.0
Cdup
Stellar density (N50/rad)
5.6 [N/pc2]
- CN 0.35 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.62 Intermediate quality
- Clit 0.35 Poorly 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
CWNU 102 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a 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 absorption and metallicity parameters (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 128.742 | -36.521 | 1.067 | -5.625 | 5.205 | 17.739 |
| Liu et al. | 2025 | 128.77 | -36.57 | 1.05 | -5.62 | 5.17 | 22.17 |
| Hunt & Reffert | 2024 | 128.775 | -36.575 | 1.052 | -5.623 | 5.173 | 22.172 |
| Cavallo et al. | 2024 | 128.786 | -36.516 | 1.051 | â | â | â |
| Hunt & Reffert | 2023 | 128.775 | -36.575 | 1.052 | -5.623 | 5.173 | 22.172 |
| He et al. | 2022 | 128.706 | -36.395 | 1.068 | -5.49 | 5.143 | â |
| He et al. | 2022 | 128.766 | -36.466 | 1.03 | -5.6 | 5.2 | 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 | 0.91 | 0.28 | 0.83 | 27 | 0.115 | 80 | â | â |
| Liu et al. | 2025 | 1.03 | 0.15 | â | 25 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 80(1) | â | â |
| Cavallo et al. | 2024 | 0.92 | 0.59 | â | 13 | -0.140 | â | â | â |
| Hunt & Reffert | 2023 | 0.90 | 0.28 | 0.83 | 27 | â | â | â | â |
| He et al. | 2022 | â | 0.90 | â | 50 | â | â | â | â |
| He et al. | 2022 | 0.76 | 0.06 | â | 32 | 0.370 | 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 57 along with Pismis_5, and of multiple system 23 along with OC_0467, DBSB_19 and Pismis_5.
Palma et al. (2025)
Part of multiple system G68, along with Pismis_5, DBSB_19 and OC_0467.
Cavallo et al. (2024)
Gold sample.