CWNU 1057
(OCSN 172)
0.46
UTI
0.25
CN
0.44
Cdens
1.0
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
2.2 [N/pc2]
- CN 0.25 Poorly populated
- Cdens 0.44 Loose
- CC3 1.0 Very high 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 1057 is a poorly populated, loose object of very high C3 quality. Its parallax locates it at a very close distance, near 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 absorption parameter (see Parameters). It is poorly studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 80.827 | -7.882 | 7.061 | -0.912 | -2.607 | 21.271 |
| Wei et al. | 2025 | 81.694 | -6.929 | 2.821 | 0.766 | -0.569 | â |
| Cavallo et al. | 2024 | 81.254 | -7.067 | 6.984 | â | â | â |
| Hunt & Reffert | 2023 | 80.884 | -8.302 | 7.004 | -0.998 | -2.67 | 16.418 |
| Qin et al. | 2023 | 80.74 | -7.38 | 6.86 | -1.08 | -2.68 | 17.76 |
| He et al. | 2022 | 80.969 | -8.12 | 7.063 | -0.944 | -2.437 | 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 | 0.145 | 0.19 | 0.44 | 35 | 0.020 | 418 | 0.52 | â |
| Wei et al. | 2025 | 0.15 | 0.12 | â | 40 | 0.000 | 418 | 0.52 | â |
| Cavallo et al. | 2024 | 0.14 | 0.83 | â | 35 | 0.040 | â | â | â |
| Hunt & Reffert | 2023 | 0.14 | 0.19 | 0.44 | 16 | â | â | â | â |
| Qin et al. | 2023 | 0.15 | 0.16 | â | 50 | â | â | â | â |
| He et al. | 2022 | â | 0.25 | â | 22 | â | â | â | â |
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as a moving group.