CWNU 2643
0.21
UTI
0.0
CN
0.15
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
21
Core radius and density
1.7 [pc], 0.8 [pc-2]
- CN 0.0 Sparse
- Cdens 0.15 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 2643 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 metal-rich, very young 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 | 234.548 | -57.354 | 0.335 | -3.37 | -3.699 | â |
| Hunt & Reffert | 2024 | 234.573 | -57.34 | 0.331 | -3.356 | -3.72 | â |
| Cavallo et al. | 2024 | 234.54 | -57.361 | 0.331 | â | â | â |
| Hunt & Reffert | 2023 | 234.573 | -57.34 | 0.331 | -3.356 | -3.72 | â |
| He et al. | 2023 | 234.565 | -57.356 | 0.346 | -3.367 | -3.682 | 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 | 2.685 | 3.58 | 1.84 | 18 | 0.780 | 356 | â | â |
| Hunt & Reffert | 2024 | 2.70 | 3.77 | 1.84 | 18 | â | 356(1) | â | â |
| Cavallo et al. | 2024 | 2.67 | 3.39 | â | 50 | 0.780 | â | â | â |
| Hunt & Reffert | 2023 | 2.70 | 3.77 | 1.84 | 18 | â | â | â | â |
| He et al. | 2023 | 2.51 | 1.65 | â | 1 | 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: 0.86 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.86 (50th percentile).