CWNU 1431
0.14
UTI
0.0
CN
0.05
Cdens
0.5
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
21
Core radius and density
4.4 [pc], 0.2 [pc-2]
- CN 0.0 Sparse
- Cdens 0.05 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 1431 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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 | 107.91 | -14.937 | 0.397 | -1.49 | 1.407 | â |
| Hunt & Reffert | 2024 | 107.971 | -14.927 | 0.387 | -1.494 | 1.348 | â |
| Cavallo et al. | 2024 | 107.918 | -14.941 | 0.392 | â | â | â |
| Hunt & Reffert | 2023 | 107.971 | -14.927 | 0.387 | -1.494 | 1.348 | â |
| He et al. | 2023 | 107.909 | -14.965 | 0.389 | -1.511 | 1.386 | 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 | 2.31 | 0.94 | 0.92 | 380 | -0.270 | 221 | â | â |
| Hunt & Reffert | 2024 | 2.31 | 0.85 | 0.92 | 405 | â | 221(1) | â | â |
| Cavallo et al. | 2024 | 2.25 | 1.03 | â | 275 | -0.270 | â | â | â |
| Hunt & Reffert | 2023 | 2.31 | 0.85 | 0.92 | 405 | â | â | â | â |
| He et al. | 2023 | 2.34 | 1.20 | â | 355 | 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: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).