CWNU 439
0.54
UTI
0.33
CN
1.0
Cdens
0.75
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
4.6 [arcmin]
- CN 0.33 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 439 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.
Relatively close
High extinction
Metal-rich
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 306.753 | 43.528 | 0.565 | -0.044 | -3.047 | -46.875 |
| Zhang et al. | 2024 | 306.773 | 43.518 | â | â | â | â |
| Hunt & Reffert | 2024 | 306.773 | 43.518 | 0.568 | -0.012 | -3.043 | -46.863 |
| Cavallo et al. | 2024 | 306.719 | 43.484 | 0.561 | â | â | â |
| Hunt & Reffert | 2023 | 306.773 | 43.518 | 0.568 | -0.012 | -3.043 | -46.863 |
| He et al. | 2022 | 306.742 | 43.523 | 0.56 | -0.04 | -3.05 | -14.0 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | 0.187* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 292* | â | â |
| Cavallo et al. | 2024 | 1.85 | 3.70 | â | 91 | 0.590 | â | â | â |
| Hunt & Reffert | 2023 | 1.72 | 3.60 | 2.79 | 112 | â | â | â | â |
| He et al. | 2022 | 2.04 | 4.68 | â | 50 | 0.611 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.