CWNU 1938
0.49
UTI
0.27
CN
0.95
Cdens
0.75
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
2.8 [arcmin]
- CN 0.27 Poorly populated
- Cdens 0.95 Very dense
- CC3 0.75 High quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 1938 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.
Distant
High extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 219.312 | -60.254 | 0.342 | -2.483 | -1.296 | -9.611 |
| Hunt & Reffert | 2024 | 219.299 | -60.262 | 0.353 | -2.494 | -1.358 | -9.595 |
| Cavallo et al. | 2024 | 219.337 | -60.257 | 0.35 | â | â | â |
| Hunt & Reffert | 2023 | 219.299 | -60.262 | 0.353 | -2.494 | -1.358 | -9.595 |
| He et al. | 2023 | 219.323 | -60.255 | 0.339 | -2.477 | -1.288 | 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 | 487* | â | â |
| Cavallo et al. | 2024 | 3.36 | 4.77 | â | 41 | -0.410 | â | â | â |
| Hunt & Reffert | 2023 | 2.50 | 2.79 | 2.52 | 356 | â | â | â | â |
| He et al. | 2023 | 3.24 | 5.80 | â | 2 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.