CWNU 45
0.41
UTI
0.26
CN
0.54
Cdens
0.62
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
17.7 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.54 Moderately dense
- CC3 0.62 Intermediate quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
CWNU 45 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is poorly studied in the literature.
Close
Low extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 107.84 | -27.893 | 1.659 | -3.247 | 6.348 | 35.498 |
| Wei et al. | 2025 | 107.886 | -27.539 | 1.691 | -3.981 | 5.371 | â |
| Hunt & Reffert | 2024 | 108.099 | -27.984 | 1.613 | -3.139 | 6.275 | 36.461 |
| Cavallo et al. | 2024 | 108.283 | -28.061 | 1.618 | â | â | â |
| Hunt & Reffert | 2023 | 108.099 | -27.984 | 1.613 | -3.139 | 6.275 | 36.461 |
| He et al. | 2022 | 107.845 | -27.911 | 1.67 | -3.26 | 6.35 | 44.4 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Wei et al. | 2025 | 0.67 | 0.42 | â | 13 | 0.000 | 651 | 0.59 | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 56* | â | â |
| Cavallo et al. | 2024 | 0.66 | 0.33 | â | 12 | 0.060 | â | â | â |
| Hunt & Reffert | 2023 | 0.59 | 0.13 | 0.60 | 33 | â | â | â | â |
| He et al. | 2022 | 0.55 | 0.06 | â | 40 | 0.457 | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.