CWNU 1630
0.48
UTI
0.31
CN
0.73
Cdens
0.75
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
3.6 [N/pc2]
- CN 0.31 Poorly populated
- Cdens 0.73 Moderately dense
- CC3 0.75 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 1630 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption and age parameters (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 | 273.722 | -20.439 | 0.727 | 1.48 | -1.198 | 12.933 |
| Liu et al. | 2025 | 273.73 | -20.42 | 0.73 | 1.5 | -1.17 | 7.6 |
| Hunt & Reffert | 2024 | 273.733 | -20.415 | 0.728 | 1.5 | -1.166 | 7.603 |
| Cavallo et al. | 2024 | 273.695 | -20.417 | 0.728 | â | â | â |
| Hunt & Reffert | 2023 | 273.733 | -20.415 | 0.728 | 1.5 | -1.166 | 7.603 |
| He et al. | 2023 | 273.702 | -20.475 | 0.731 | 1.481 | -1.199 | 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 | 1.395 | 0.86 | 1.22 | 12 | -0.210 | 223 | â | â |
| Liu et al. | 2025 | 1.47 | 0.31 | â | 14 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 223(1) | â | â |
| Cavallo et al. | 2024 | 1.47 | 0.85 | â | 63 | -0.210 | â | â | â |
| Hunt & Reffert | 2023 | 1.28 | 0.87 | 1.22 | 9 | â | â | â | â |
| He et al. | 2023 | 1.32 | 1.25 | â | 8 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 108 along with HSC_143, and as tidal capture (resonant trapping binary) 160 along with HSC_135, and of multiple system 39 along with HSC_143 and HSC_135.
Palma et al. (2025)
Part of multiple system G70, along with HSC_143, Dias_5 and HSC_135.
Cavallo et al. (2024)
Bronze sample.