CWNU 135
0.12
UTI
0.0
CN
0.23
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
1.1 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.23 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
CWNU 135 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption, age, and metallicity parameters (see Parameters). It is rarely studied 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 | 116.51 | -53.161 | 1.302 | -4.884 | 7.582 | 4.505 |
| Hu & Soubiran | 2025 | 116.512 | -53.144 | â | â | â | â |
| Cavallo et al. | 2024 | 116.512 | -53.144 | 1.328 | â | â | â |
| Hunt & Reffert | 2023 | 116.564 | -52.842 | 1.316 | -4.934 | 7.659 | 4.21 |
| He et al. | 2022 | 116.351 | -53.345 | 1.32 | -4.93 | 7.68 | 17.5 |
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 | 0.74 | 0.2 | 0.59 | 178 | 0.250 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.230(5) | â | â | â |
| Cavallo et al. | 2024 | 0.74 | 0.02 | â | 603 | 0.250 | â | â | â |
| Hunt & Reffert | 2023 | 0.72 | 0.20 | 0.59 | 178 | â | â | â | â |
| He et al. | 2022 | 0.95 | 0.89 | â | 79 | 0.916 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as genetic pair P197, along with CWNU_260.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 1.00 (50th percentile).