CWNU 2221
0.43
UTI
0.32
CN
1.0
Cdens
0.75
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
32
Core radius and density
0.6 [pc], 5.0 [pc-2]
- CN 0.32 Poorly populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.03 Rarely 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 2221 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a young cluster (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 | 280.152 | -6.924 | 0.305 | 0.193 | -1.536 | 145.516 |
| Hunt & Reffert | 2024 | 280.142 | -6.931 | 0.295 | 0.217 | -1.567 | 138.559 |
| Hunt & Reffert | 2023 | 280.142 | -6.931 | 0.295 | 0.217 | -1.567 | 138.559 |
| He et al. | 2023 | 280.149 | -6.929 | 0.347 | 0.183 | -1.514 | 41.02 |
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 | 3.11 | 4.4 | 1.8 | 96 | â | 691 | â | â |
| Hunt & Reffert | 2024 | 3.11 | 4.40 | 1.80 | 96 | â | 691(1) | â | â |
| Hunt & Reffert | 2023 | 3.11 | 4.40 | 1.80 | 96 | â | â | â | â |
| He et al. | 2023 | 2.57 | 4.65 | â | 200 | â | 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 G50, along with CWNU_2543 and UBC_103.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.76 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.76 (50th percentile).