CWNU 205
0.17
UTI
0.0
CN
0.15
Cdens
0.5
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
1.3 [pc], 0.8 [pc-2]
- CN 0.0 Sparse
- Cdens 0.15 Very loose
- CC3 0.5 Intermediate 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 205 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close 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 metallicity parameter (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 | 93.625 | 2.834 | 0.687 | 0.449 | -2.298 | 5.533 |
| Zhang et al. | 2024 | 93.608 | 2.846 | â | â | â | â |
| Hunt & Reffert | 2024 | 93.608 | 2.846 | 0.643 | 0.443 | -2.308 | 18.146 |
| Cavallo et al. | 2024 | 93.712 | 2.772 | 0.65 | â | â | â |
| Hunt & Reffert | 2023 | 93.608 | 2.846 | 0.643 | 0.443 | -2.308 | 18.146 |
| He et al. | 2022 | 93.642 | 2.804 | 0.69 | 0.48 | -2.31 | 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 | 1.47 | 1.27 | 1.66 | 326 | 0.100 | 260 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.179(1) | â | â | â |
| Hunt & Reffert | 2024 | 1.42 | 1.21 | 1.66 | 185 | â | 260(1) | â | â |
| Cavallo et al. | 2024 | 1.52 | 1.42 | â | 468 | 0.100 | â | â | â |
| Hunt & Reffert | 2023 | 1.42 | 1.21 | 1.66 | 185 | â | â | â | â |
| He et al. | 2022 | 1.74 | 1.33 | â | 501 | 0.398 | 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: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).