CWNU 1997
0.18
UTI
0.0
CN
0.13
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
5.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.25 Low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 1997 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported 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.
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 | 347.339 | 58.989 | 0.27 | -3.139 | -1.98 | â |
| Hunt & Reffert | 2024 | 347.362 | 58.999 | 0.258 | -3.138 | -1.971 | â |
| Cavallo et al. | 2024 | 347.327 | 58.977 | 0.257 | â | â | â |
| Hunt & Reffert | 2023 | 347.362 | 58.999 | 0.258 | -3.138 | -1.971 | â |
| He et al. | 2023 | 347.339 | 58.989 | 0.271 | -3.154 | -1.987 | 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 | 360* | â | â |
| Cavallo et al. | 2024 | 3.21 | 3.18 | â | 60 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 3.75 | 3.39 | 2.11 | 26 | â | â | â | â |
| He et al. | 2023 | 3.55 | 3.95 | â | 6 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.