CWNU 2570
0.21
UTI
0.0
CN
0.18
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
23
Core radius and density
2.1 [pc], 0.9 [pc-2]
- CN 0.0 Sparse
- Cdens 0.18 Very loose
- CC3 0.75 High 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 2570 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported 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 | 240.135 | -55.06 | 0.22 | -3.812 | -3.775 | -37.538 |
| Hunt & Reffert | 2024 | 240.136 | -55.061 | 0.214 | -3.834 | -3.81 | -6.746 |
| Cavallo et al. | 2024 | 240.138 | -55.062 | 0.214 | â | â | â |
| Hunt & Reffert | 2023 | 240.136 | -55.061 | 0.214 | -3.834 | -3.81 | -6.746 |
| He et al. | 2023 | 240.135 | -55.06 | 0.231 | -3.818 | -3.784 | -74.99 |
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 | 4.04 | 4.24 | 1.67 | 148 | -0.480 | 1235 | â | â |
| Hunt & Reffert | 2024 | 4.43 | 4.24 | 1.67 | 88 | â | 1235(1) | â | â |
| Cavallo et al. | 2024 | 3.65 | 4.37 | â | 209 | -0.480 | â | â | â |
| Hunt & Reffert | 2023 | 4.43 | 4.24 | 1.67 | 88 | â | â | â | â |
| He et al. | 2023 | 3.39 | 3.70 | â | 631 | â | 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: 0.98 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).