CWNU 1851
0.24
UTI
0.0
CN
0.33
Cdens
0.38
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
7.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.33 Loose
- CC3 0.38 Low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 1851 is a sparse, loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age 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.
Relatively close
Moderate 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 | 254.419 | -41.457 | 0.604 | -0.52 | -0.051 | -44.68 |
| Hunt & Reffert | 2024 | 254.405 | -41.466 | 0.616 | -0.508 | -0.075 | -44.678 |
| Cavallo et al. | 2024 | 254.457 | -41.429 | 0.611 | â | â | â |
| Hunt & Reffert | 2023 | 254.405 | -41.466 | 0.616 | -0.508 | -0.075 | -44.678 |
| He et al. | 2023 | 254.424 | -41.458 | 0.608 | -0.498 | -0.042 | 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 | 121* | â | â |
| Cavallo et al. | 2024 | 1.58 | 1.92 | â | 191 | -0.800 | â | â | â |
| Hunt & Reffert | 2023 | 1.57 | 1.76 | 1.03 | 102 | â | â | â | â |
| He et al. | 2023 | 1.55 | 1.95 | â | 89 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.