CWNU 2159
0.12
UTI
0.0
CN
0.11
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
2.1 [pc], 0.6 [pc-2]
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.38 Low 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 2159 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, 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 | 340.427 | 60.803 | 0.371 | -3.879 | -2.637 | -4.609 |
| Hunt & Reffert | 2024 | 340.436 | 60.788 | 0.366 | -3.878 | -2.618 | -4.649 |
| Cavallo et al. | 2024 | 340.388 | 60.803 | 0.371 | â | â | â |
| Hunt & Reffert | 2023 | 340.436 | 60.788 | 0.366 | -3.878 | -2.618 | -4.649 |
| He et al. | 2023 | 340.405 | 60.8 | 0.371 | -3.871 | -2.599 | -50.73 |
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 | 2.545 | 3.37 | 1.97 | 223 | 0.080 | 325 | â | â |
| Hunt & Reffert | 2024 | 2.55 | 3.19 | 1.97 | 223 | â | 325(1) | â | â |
| Cavallo et al. | 2024 | 2.54 | 3.64 | â | 178 | 0.080 | â | â | â |
| Hunt & Reffert | 2023 | 2.55 | 3.19 | 1.97 | 223 | â | â | â | â |
| He et al. | 2023 | 2.51 | 3.55 | â | 251 | 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: 0.93 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.93 (50th percentile).