CWNU 2338
0.12
UTI
0.0
CN
0.02
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
7.3 [pc], 0.09 [pc-2]
- CN 0.0 Sparse
- Cdens 0.02 Very loose
- CC3 0.38 Low 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
CWNU 2338 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It was recently reported 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 | 312.99 | 49.354 | 0.372 | -1.699 | -3.829 | 4.378 |
| Hu & Soubiran | 2025 | 312.964 | 49.325 | â | â | â | â |
| Hunt & Reffert | 2024 | 312.915 | 49.324 | 0.37 | -1.704 | -3.801 | -1.023 |
| Cavallo et al. | 2024 | 312.963 | 49.325 | 0.372 | â | â | â |
| Hunt & Reffert | 2023 | 312.915 | 49.324 | 0.37 | -1.704 | -3.801 | -1.023 |
| He et al. | 2023 | 312.941 | 49.321 | 0.387 | -1.712 | -3.815 | -11.75 |
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 | 2.55 | 3.105 | 1.86 | 88 | 0.215 | 187 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | 0.060(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.46 | 3.00 | 1.86 | 88 | â | 187(1) | â | â |
| Cavallo et al. | 2024 | 2.64 | 3.21 | â | 550 | 0.370 | â | â | â |
| Hunt & Reffert | 2023 | 2.46 | 3.00 | 1.86 | 88 | â | â | â | â |
| He et al. | 2023 | 2.75 | 4.00 | â | 16 | â | 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 optical pair (not dynamically associated) P110, along with UBC_379.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.26 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.26 (50th percentile).