CWNU 2895
0.12
UTI
0.0
CN
0.04
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
2.9 [pc], 0.2 [pc-2]
- CN 0.0 Sparse
- Cdens 0.04 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 2895 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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 | 104.703 | -11.049 | 0.306 | -0.468 | -0.369 | 50.301 |
| Hu & Soubiran | 2025 | 104.623 | -11.001 | â | â | â | â |
| Hunt & Reffert | 2024 | 104.72 | -10.999 | 0.309 | -0.438 | -0.32 | 71.035 |
| Cavallo et al. | 2024 | 104.623 | -11.001 | 0.306 | â | â | â |
| Hunt & Reffert | 2023 | 104.72 | -10.999 | 0.309 | -0.438 | -0.32 | 71.035 |
| He et al. | 2023 | 104.765 | -11.056 | 0.279 | -0.478 | -0.387 | 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 | 2.92 | 1.62 | 1.36 | 277 | 0.055 | 239 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.270(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.92 | 1.62 | 1.36 | 277 | â | 239(1) | â | â |
| Cavallo et al. | 2024 | 2.73 | 1.30 | â | 676 | 0.380 | â | â | â |
| Hunt & Reffert | 2023 | 2.92 | 1.62 | 1.36 | 277 | â | â | â | â |
| He et al. | 2023 | 3.02 | 1.95 | â | 28 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.91 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.91 (50th percentile).