CWNU 11
0.22
UTI
0.28
CN
0.11
Cdens
0.5
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
28
Core radius and density
2.3 [pc], 0.5 [pc-2]
- CN 0.28 Poorly populated
- Cdens 0.11 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 11 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a metal-poor, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (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 | 90.899 | 18.267 | 1.085 | -0.182 | -1.501 | 0.772 |
| Zhang et al. | 2024 | 90.915 | 18.27 | â | â | â | â |
| Hunt & Reffert | 2024 | 90.915 | 18.27 | 1.088 | -0.163 | -1.509 | 0.465 |
| Cavallo et al. | 2024 | 90.862 | 18.305 | 1.082 | â | â | â |
| Hunt & Reffert | 2023 | 90.915 | 18.27 | 1.088 | -0.163 | -1.509 | 0.465 |
| He et al. | 2022 | 90.915 | 18.263 | 1.08 | -0.17 | -1.5 | 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 | 0.88 | 0.87 | 0.79 | 106 | -0.540 | 81 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.201(1) | â | â | â |
| Hunt & Reffert | 2024 | 0.88 | 0.54 | 0.79 | 150 | â | 81(1) | â | â |
| Cavallo et al. | 2024 | 0.94 | 1.25 | â | 25 | -0.540 | â | â | â |
| Hunt & Reffert | 2023 | 0.88 | 0.54 | 0.79 | 150 | â | â | â | â |
| He et al. | 2022 | 0.83 | 1.20 | â | 63 | -0.580 | 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: 0.81 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.81 (50th percentile).