CWNU 1586
0.10
UTI
0.0
CN
0.06
Cdens
0.25
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
1.7 [pc], 0.3 [pc-2]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.25 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 1586 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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 | 118.296 | -26.608 | 0.37 | -2.098 | 0.57 | 46.144 |
| Hu & Soubiran | 2025 | 118.314 | -26.623 | â | â | â | â |
| Hunt & Reffert | 2024 | 118.302 | -26.597 | 0.367 | -2.103 | 0.595 | 46.143 |
| Cavallo et al. | 2024 | 118.314 | -26.623 | 0.364 | â | â | â |
| Hunt & Reffert | 2023 | 118.302 | -26.597 | 0.367 | -2.103 | 0.595 | 46.143 |
| He et al. | 2023 | 118.285 | -26.613 | 0.376 | -2.092 | 0.571 | 46.14 |
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 | 2.445 | 0.6 | 1.17 | 418 | 0.035 | 111 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.080(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.47 | 0.60 | 1.17 | 390 | â | 111(1) | â | â |
| Cavallo et al. | 2024 | 2.42 | 0.59 | â | 871 | 0.150 | â | â | â |
| Hunt & Reffert | 2023 | 2.47 | 0.60 | 1.17 | 390 | â | â | â | â |
| He et al. | 2023 | 2.40 | 0.85 | â | 447 | 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 P320, along with Trumpler_9.
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).