CWNU 222
0.22
UTI
0.0
CN
0.47
Cdens
0.12
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
6.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.47 Loose
- CC3 0.12 Very low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 222 is a sparse, loose object of very low C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a metal-poor, intermediate-age cluster (see Parameters). It is poorly 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.
Relatively close
Low extinction
Metal-poor
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 101.999 | -8.04 | 0.621 | -1.944 | -0.84 | 23.401 |
| Hunt & Reffert | 2024 | 101.993 | -8.019 | 0.624 | -1.943 | -0.787 | 25.617 |
| Cavallo et al. | 2024 | 102.048 | -8.123 | 0.615 | â | â | â |
| Hunt & Reffert | 2023 | 101.993 | -8.019 | 0.624 | -1.943 | -0.787 | 25.617 |
| He et al. | 2022 | 101.986 | -8.039 | 0.62 | -1.93 | -0.84 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 147* | â | â |
| Cavallo et al. | 2024 | 1.59 | 0.88 | â | 257 | 0.200 | â | â | â |
| Hunt & Reffert | 2023 | 1.52 | 0.93 | 0.22 | 167 | â | â | â | â |
| He et al. | 2022 | 1.32 | 1.20 | â | 501 | -1.335 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.