CWNU 458
0.24
UTI
0.5
CN
0.07
Cdens
0.5
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
51
Core radius and density
1.0 [pc], 0.3 [pc-2]
- CN 0.5 Moderately populated
- Cdens 0.07 Very loose
- CC3 0.5 Intermediate quality
- Clit 0.06 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 458 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (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 | 227.527 | -56.384 | 0.49 | -1.601 | -2.124 | -9.098 |
| Hunt & Reffert | 2024 | 227.568 | -56.402 | 0.488 | -1.638 | -2.115 | -25.053 |
| Cavallo et al. | 2024 | 227.481 | -56.36 | 0.488 | â | â | â |
| Hunt & Reffert | 2023 | 227.568 | -56.402 | 0.488 | -1.638 | -2.115 | -25.053 |
| He et al. | 2022 | 227.554 | -56.401 | 0.47 | -1.6 | -2.13 | 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 | 1.98 | 3.28 | 2.42 | 24 | 0.472 | 643 | â | â |
| Hunt & Reffert | 2024 | 1.92 | 3.26 | 2.42 | 24 | â | 643(1) | â | â |
| Cavallo et al. | 2024 | 2.04 | 3.30 | â | 38 | 0.650 | â | â | â |
| Hunt & Reffert | 2023 | 1.92 | 3.26 | 2.42 | 24 | â | â | â | â |
| He et al. | 2022 | 3.89 | 4.69 | â | 5 | 0.295 | 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: 0.50 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.50 (50th percentile).