CWNU 423
0.21
UTI
0.32
CN
0.15
Cdens
0.38
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
32
Core radius and density
2.2 [pc], 0.7 [pc-2]
- CN 0.32 Poorly populated
- Cdens 0.15 Very loose
- CC3 0.38 Low quality
- Clit 0.1 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 423 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 15.52 | 62.199 | 0.992 | -0.252 | -1.685 | -2.908 |
| Hunt & Reffert | 2024 | 15.462 | 62.266 | 0.988 | -0.293 | -1.665 | -17.823 |
| Cavallo et al. | 2024 | 15.423 | 62.163 | 0.984 | â | â | â |
| Hunt & Reffert | 2023 | 15.462 | 62.266 | 0.988 | -0.293 | -1.665 | -17.823 |
| He et al. | 2022 | 15.434 | 62.215 | 0.992 | -0.246 | -1.683 | â |
| He et al. | 2022 | 15.504 | 62.201 | 0.99 | -0.25 | -1.68 | 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 | 0.97 | 1.84 | 1.45 | 105 | 0.402 | 105 | â | â |
| Hunt & Reffert | 2024 | 0.97 | 1.76 | 1.45 | 141 | â | 105(1) | â | â |
| Cavallo et al. | 2024 | 1.20 | 2.15 | â | 105 | 0.730 | â | â | â |
| Hunt & Reffert | 2023 | 0.97 | 1.76 | 1.45 | 141 | â | â | â | â |
| He et al. | 2022 | â | 2.30 | â | 45 | â | â | â | â |
| He et al. | 2022 | 0.87 | 1.84 | â | 63 | 0.073 | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.91 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.91 (50th percentile).