CWNU 50
0.62
UTI
0.57
CN
1.0
Cdens
1.0
CC3
0.25
Clit
1.0
Cdup
Stellar density (N50/rad)
10.0 [N/pc2]
- CN 0.57 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.25 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 50 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate* distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~2.44 kpc) differs significantly from the median photometric distance (~1.82 kpc).
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 264.365 | -34.793 | 0.41 | 1.417 | 0.315 | -7.215 |
| Hunt & Reffert | 2024 | 264.352 | -34.796 | 0.393 | 1.418 | 0.301 | -23.565 |
| Cavallo et al. | 2024 | 264.362 | -34.813 | 0.395 | â | â | â |
| Hunt & Reffert | 2023 | 264.352 | -34.796 | 0.393 | 1.418 | 0.301 | -23.565 |
| He et al. | 2022 | 264.356 | -34.783 | 0.42 | 1.42 | 0.32 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.82 | 4.27 | 2.35 | 151 | -0.149 | 1896 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 1896(1) | â | â |
| Cavallo et al. | 2024 | 1.49 | 4.79 | â | 151 | -1.160 | â | â | â |
| Hunt & Reffert | 2023 | 2.25 | 4.27 | 2.35 | 149 | â | â | â | â |
| He et al. | 2022 | 1.82 | 3.60 | â | 631 | 0.862 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G170, along with Ruprecht_127, HSC_2912, HSC_2921 and UBC_564.
Cavallo et al. (2024)
Gold sample.