CWNU 1821
0.40
UTI
0.0
CN
1.0
Cdens
0.38
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
5.5 [N/pc2]
- CN 0.0 Sparse
- Cdens 1.0 Very dense
- CC3 0.38 Low quality
- Clit 0.3 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
CWNU 1821 is a sparse, very dense object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 158.521 | -59.517 | 0.468 | -5.548 | 2.882 | -17.945 |
| Hu & Soubiran | 2025 | 158.492 | -59.518 | â | â | â | â |
| Hunt & Reffert | 2024 | 158.531 | -59.527 | 0.455 | -5.539 | 2.888 | -17.958 |
| Cavallo et al. | 2024 | 158.491 | -59.518 | 0.463 | â | â | â |
| Hunt & Reffert | 2023 | 158.531 | -59.527 | 0.455 | -5.539 | 2.888 | -17.958 |
| He et al. | 2023 | 158.508 | -59.515 | 0.475 | -5.548 | 2.875 | -17.94 |
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 | 2.0 | 0.95 | 0.37 | 355 | -0.295 | 153 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.230(5) | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 153(1) | â | â |
| Cavallo et al. | 2024 | 1.68 | 0.73 | â | 891 | -0.360 | â | â | â |
| Hunt & Reffert | 2023 | 2.00 | 0.95 | 0.37 | 329 | â | â | â | â |
| He et al. | 2023 | 2.09 | 1.00 | â | 355 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.