CWNU 1832
0.23
UTI
0.29
CN
0.13
Cdens
0.5
CC3
0.12
Clit
1.0
Cdup
Nm (P>50%)
29
Core radius and density
3.0 [pc], 0.7 [pc-2]
- CN 0.29 Poorly populated
- Cdens 0.13 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.12 Rarely studied
- Cdup 1.0 Unique
Overview
CWNU 1832 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 257.689 | -36.028 | 0.567 | 1.348 | 0.441 | -29.438 |
| Hunt & Reffert | 2024 | 257.692 | -36.029 | 0.561 | 1.334 | 0.408 | -29.454 |
| Cavallo et al. | 2024 | 257.683 | -36.023 | 0.569 | â | â | â |
| Hunt & Reffert | 2023 | 257.692 | -36.029 | 0.561 | 1.334 | 0.408 | -29.454 |
| He et al. | 2023 | 257.695 | -36.015 | 0.581 | 1.366 | 0.443 | -29.44 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.65 | 3.545 | 2.17 | 110 | -0.330 | 400 | â | â |
| Hunt & Reffert | 2024 | 1.65 | 3.44 | 2.17 | 96 | â | 400(1) | â | â |
| Cavallo et al. | 2024 | 1.58 | 3.65 | â | 123 | -0.330 | â | â | â |
| Hunt & Reffert | 2023 | 1.65 | 3.44 | 2.17 | 96 | â | â | â | â |
| He et al. | 2023 | 1.66 | 3.65 | â | 141 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA


Palma et al. (2025)
Part of multiple system G17, along with HSC_2897, Bochum_13 and NGC_6334.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.56 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.56 (50th percentile).