CWNU 1096
0.28
UTI
0.0
CN
0.19
Cdens
1.0
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
24
Core radius and density
1.4 [pc], 0.9 [pc-2]
- CN 0.0 Sparse
- Cdens 0.19 Very loose
- CC3 1.0 Very high 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 1096 is a sparse, very loose object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 127.547 | -38.968 | 2.738 | -6.659 | 9.632 | 3.405 |
| Liu et al. | 2025 | 127.26 | -38.82 | 2.73 | -6.68 | 9.61 | -5.12 |
| Swiggum et al. | 2024 | 127.256 | -38.825 | 2.728 | -6.676 | 9.613 | 12.401 |
| Cavallo et al. | 2024 | 127.549 | -39.04 | 2.733 | â | â | â |
| Hunt & Reffert | 2023 | 127.256 | -38.825 | 2.728 | -6.676 | 9.613 | -5.122 |
| He et al. | 2022 | 127.569 | -38.807 | 2.726 | -6.634 | 9.553 | 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 | 0.365 | 0.465 | 0.7 | 6 | 0.340 | 18 | â | â |
| Liu et al. | 2025 | 0.40 | 0.08 | â | 9 | â | â | â | â |
| Swiggum et al. | 2024 | 0.36 | â | â | 5 | â | 18 | â | â |
| Cavallo et al. | 2024 | 0.37 | 0.58 | â | 6 | 0.340 | â | â | â |
| Hunt & Reffert | 2023 | 0.35 | 0.53 | 0.70 | 5 | â | â | â | â |
| He et al. | 2022 | â | 0.40 | â | 8 | â | â | â | â |
Liu et al. (2025)
Classified as primordial binary cluster 90 along with CWNU_1083, and as primordial binary cluster 93 along with Theia_31, and of multiple system 30 along with Theia_31 and CWNU_1083.
Palma et al. (2025)
Classified as optical pair P89, along with Theia_31.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.99 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).