CWNU 2151
0.13
UTI
0.0
CN
0.14
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
22
Core radius and density
1.5 [pc], 0.7 [pc-2]
- CN 0.0 Sparse
- Cdens 0.14 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 2151 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 (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 | 341.904 | 55.551 | 0.238 | -2.571 | -2.889 | -61.978 |
| Hunt & Reffert | 2024 | 341.932 | 55.55 | 0.231 | -2.561 | -2.891 | -61.97 |
| Cavallo et al. | 2024 | 341.824 | 55.548 | 0.231 | â | â | â |
| Hunt & Reffert | 2023 | 341.932 | 55.55 | 0.231 | -2.561 | -2.891 | -61.97 |
| He et al. | 2023 | 341.906 | 55.553 | 0.25 | -2.581 | -2.92 | 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 | 3.82 | 1.615 | 0.62 | 244 | 0.450 | 178 | â | â |
| Hunt & Reffert | 2024 | 3.82 | 1.68 | 0.62 | 220 | â | 178(1) | â | â |
| Cavallo et al. | 2024 | 4.15 | 1.20 | â | 269 | 0.450 | â | â | â |
| Hunt & Reffert | 2023 | 3.82 | 1.68 | 0.62 | 220 | â | â | â | â |
| He et al. | 2023 | 3.55 | 1.55 | â | 708 | 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: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).