CWNU 1863
0.43
UTI
0.28
CN
0.76
Cdens
0.5
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
3.1 [arcmin]
- CN 0.28 Poorly populated
- Cdens 0.76 Dense
- CC3 0.5 Intermediate quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 1863 is a poorly populated, dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, above 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 was recently reported in the literature.
Relatively close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 149.951 | -53.295 | 0.333 | -6.162 | 3.178 | â |
| Hu & Soubiran | 2025 | 149.942 | -53.287 | â | â | â | â |
| Hunt & Reffert | 2024 | 149.957 | -53.284 | 0.319 | -6.198 | 3.184 | â |
| Cavallo et al. | 2024 | 149.942 | -53.287 | 0.322 | â | â | â |
| Hunt & Reffert | 2023 | 149.957 | -53.284 | 0.319 | -6.198 | 3.184 | â |
| He et al. | 2023 | 149.949 | -53.289 | 0.352 | -6.151 | 3.166 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.090* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 307* | â | â |
| Cavallo et al. | 2024 | 2.47 | 0.93 | â | 912 | 0.450 | â | â | â |
| Hunt & Reffert | 2023 | 2.76 | 1.61 | 0.95 | 296 | â | â | â | â |
| He et al. | 2023 | 2.57 | 1.55 | â | 355 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.