CWNU 445
0.22
UTI
0.33
CN
0.14
Cdens
0.5
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
33
Core radius and density
2.9 [pc], 0.7 [pc-2]
- CN 0.33 Poorly populated
- Cdens 0.14 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 445 is a poorly populated, very loose object of intermediate 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, young 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 | 228.386 | -59.177 | 0.556 | -2.658 | -2.786 | -13.232 |
| Hunt & Reffert | 2024 | 228.338 | -59.157 | 0.557 | -2.655 | -2.772 | -13.246 |
| Cavallo et al. | 2024 | 228.331 | -59.164 | 0.557 | â | â | â |
| Hunt & Reffert | 2023 | 228.338 | -59.157 | 0.557 | -2.655 | -2.772 | -13.246 |
| He et al. | 2022 | 228.406 | -59.187 | 0.56 | -2.7 | -2.79 | 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 | 1.7 | 2.59 | 1.27 | 32 | 0.214 | 182 | â | â |
| Hunt & Reffert | 2024 | 1.70 | 2.57 | 1.27 | 42 | â | 182(1) | â | â |
| Cavallo et al. | 2024 | 1.45 | 2.75 | â | 21 | 0.030 | â | â | â |
| Hunt & Reffert | 2023 | 1.70 | 2.58 | 1.27 | 42 | â | â | â | â |
| He et al. | 2022 | 2.45 | 2.60 | â | 8 | 0.398 | 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 classes: 0.74 (50th percentile), true positive? (human-assigned).
Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.74 (50th percentile), true positive? (human-assigned).