CWNU 2265
0.21
UTI
0.0
CN
0.17
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
17
Core radius and density
1.5 [pc], 0.8 [pc-2]
- CN 0.0 Sparse
- Cdens 0.17 Very loose
- CC3 0.75 High quality
- Clit 0.06 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 2265 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, above 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 age parameter (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 | 167.709 | -57.892 | 0.29 | -6.421 | 2.134 | 5.275 |
| Hunt & Reffert | 2024 | 167.697 | -57.887 | 0.289 | -6.419 | 2.122 | â |
| Cavallo et al. | 2024 | 167.735 | -57.896 | 0.288 | â | â | â |
| Hunt & Reffert | 2023 | 167.697 | -57.887 | 0.289 | -6.419 | 2.122 | â |
| He et al. | 2023 | 167.726 | -57.915 | 0.295 | -6.413 | 2.127 | 26.74 |
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 | 2.96 | 0.9 | 1.02 | 202 | -0.010 | 252 | â | â |
| Hunt & Reffert | 2024 | 3.04 | 1.05 | 1.02 | 94 | â | 252(1) | â | â |
| Cavallo et al. | 2024 | 2.41 | 0.62 | â | 309 | -0.010 | â | â | â |
| Hunt & Reffert | 2023 | 3.04 | 1.05 | 1.02 | 94 | â | â | â | â |
| He et al. | 2023 | 2.88 | 0.75 | â | 794 | 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 P345, along with CWNU_2383.
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).