CWNU 2103
0.16
UTI
0.26
CN
0.23
Cdens
0.12
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
26
Core radius and density
1.3 [pc], 1.1 [pc-2]
- CN 0.26 Poorly populated
- Cdens 0.23 Very loose
- CC3 0.12 Very low quality
- Clit 0.1 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 2103 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a 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 | 103.217 | 3.929 | 0.716 | -0.869 | -3.647 | 34.495 |
| Zhang et al. | 2024 | 103.2 | 3.949 | â | â | â | â |
| Hunt & Reffert | 2024 | 103.2 | 3.949 | 0.692 | -0.863 | -3.634 | 37.573 |
| Cavallo et al. | 2024 | 103.299 | 3.803 | 0.696 | â | â | â |
| Hunt & Reffert | 2023 | 103.2 | 3.949 | 0.692 | -0.863 | -3.634 | 37.573 |
| He et al. | 2023 | 103.188 | 3.971 | 0.727 | -0.865 | -3.634 | 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 | 1.355 | 1.285 | 2.24 | 170 | 0.043 | 95 | â | â |
| Zhang et al. | 2024 | â | â | â | â | 0.017(1) | â | â | â |
| Hunt & Reffert | 2024 | 1.33 | 1.14 | 2.24 | 212 | â | 95(1) | â | â |
| Cavallo et al. | 2024 | 1.47 | 1.43 | â | 129 | 0.070 | â | â | â |
| Hunt & Reffert | 2023 | 1.33 | 1.14 | 2.24 | 212 | â | â | â | â |
| He et al. | 2023 | 1.38 | 2.10 | â | 40 | 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: 0.97 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).