CWNU 1988
0.58
UTI
0.25
CN
1.0
Cdens
1.0
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
1.3 [arcmin]
- CN 0.25 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 1988 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.
Distant
Moderate extinction
Metal-poor
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 202.229 | -63.264 | 0.285 | -8.609 | -1.798 | -44.173 |
| Hu & Soubiran | 2025 | 202.213 | -63.267 | â | â | â | â |
| Hunt & Reffert | 2024 | 202.218 | -63.265 | 0.281 | -8.592 | -1.805 | -45.177 |
| Cavallo et al. | 2024 | 202.213 | -63.267 | 0.284 | â | â | â |
| Hunt & Reffert | 2023 | 202.218 | -63.265 | 0.281 | -8.592 | -1.805 | -45.177 |
| He et al. | 2023 | 202.22 | -63.266 | 0.291 | -8.596 | -1.809 | -45.47 |
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 | -0.290* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 480* | â | â |
| Cavallo et al. | 2024 | 2.43 | 3.06 | â | 1288 | -0.920 | â | â | â |
| Hunt & Reffert | 2023 | 3.13 | 2.42 | 1.56 | 546 | â | â | â | â |
| He et al. | 2023 | 3.09 | 2.25 | â | 1259 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.