CWNU 1994
0.27
UTI
0.0
CN
0.21
Cdens
0.75
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
1.8 [pc], 1.1 [pc-2]
- CN 0.0 Sparse
- Cdens 0.21 Very loose
- CC3 0.75 High quality
- Clit 0.19 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 1994 is a sparse, very loose object of high 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, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 278.687 | -11.573 | 0.506 | 0.313 | -0.125 | 6.109 |
| Hunt & Reffert | 2024 | 278.692 | -11.626 | 0.514 | 0.268 | -0.179 | 6.108 |
| Cavallo et al. | 2024 | 278.656 | -11.605 | 0.513 | â | â | â |
| Hunt & Reffert | 2023 | 278.692 | -11.626 | 0.514 | 0.268 | -0.179 | 6.108 |
| He et al. | 2023 | 278.682 | -11.602 | 0.506 | 0.334 | -0.1 | 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 | 1.83 | 2.52 | 1.25 | 107 | -0.050 | 173 | â | â |
| Liu et al. | 2025 | 3.78 | 0.80 | â | 50 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.83 | 2.52 | 1.25 | 167 | â | 173(1) | â | â |
| Cavallo et al. | 2024 | 1.58 | 2.54 | â | 107 | -0.050 | â | â | â |
| Hunt & Reffert | 2023 | 1.83 | 2.52 | 1.25 | 167 | â | â | â | â |
| He et al. | 2023 | 1.82 | 1.30 | â | 4 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 110 along with OC_0034.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P9, along with OC_0034.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).