CWNU 350
0.16
UTI
0.0
CN
0.11
Cdens
0.38
CC3
0.16
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
1.6 [pc], 0.5 [pc-2]
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.38 Low quality
- Clit 0.16 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 350 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively 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, 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 | 76.425 | 45.993 | 0.903 | -0.549 | -1.768 | -34.29 |
| Hu & Soubiran | 2025 | 76.476 | 45.943 | â | â | â | â |
| Zhang et al. | 2024 | 76.466 | 45.969 | â | â | â | â |
| Hunt & Reffert | 2024 | 76.466 | 45.969 | 0.904 | -0.504 | -1.757 | -22.79 |
| Cavallo et al. | 2024 | 76.476 | 45.943 | 0.904 | â | â | â |
| Hunt & Reffert | 2023 | 76.466 | 45.969 | 0.904 | -0.504 | -1.757 | -22.79 |
| He et al. | 2022 | 76.361 | 46.033 | 0.94 | -0.55 | -1.74 | 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 | 1.05 | 0.7 | 0.9 | 79 | -0.093 | 102 | â | â |
| Liu et al. | 2025 | 1.10 | 0.19 | â | 112 | â | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.230(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.126(1) | â | â | â |
| Hunt & Reffert | 2024 | 1.05 | 0.70 | 0.90 | 33 | â | 102(1) | â | â |
| Cavallo et al. | 2024 | 1.06 | 1.09 | â | 1549 | -0.060 | â | â | â |
| Hunt & Reffert | 2023 | 1.05 | 0.70 | 0.90 | 33 | â | â | â | â |
| He et al. | 2022 | 1.05 | 1.08 | â | 79 | 0.161 | 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 tidal capture (resonant trapping binary) 3 along with ASCC_13.
Palma et al. (2025)
Part of multiple system G8, along with HSC_1292 and ASCC_13.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).