CWNU 1243
0.23
UTI
0.38
CN
0.54
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
2.7 [N/pc2]
- CN 0.38 Poorly populated
- Cdens 0.54 Moderately dense
- CC3 0.25 Low quality
- Clit 0.0 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 1243 is a poorly populated, moderately dense object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is rarely studied 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 | 307.84 | 39.013 | 1.051 | -1.001 | -4.42 | -9.735 |
| Zhang et al. | 2024 | 307.955 | 39.043 | â | â | â | â |
| Cavallo et al. | 2024 | 307.846 | 38.994 | 1.061 | â | â | â |
| Hunt & Reffert | 2023 | 307.955 | 39.043 | 1.065 | -0.983 | -4.403 | -0.466 |
| He et al. | 2022 | 307.889 | 39.023 | 1.066 | -1.044 | -4.406 | 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 | 1.04 | 0.895 | 0.57 | 15 | -0.013 | â | â | â |
| Liu et al. | 2025 | 1.45 | 0.36 | â | 17 | â | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.165(1) | â | â | â |
| Cavallo et al. | 2024 | 1.04 | 0.96 | â | 12 | 0.140 | â | â | â |
| Hunt & Reffert | 2023 | 0.91 | 0.83 | 0.57 | 13 | â | â | â | â |
| He et al. | 2022 | â | 1.90 | â | 25 | 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 primordial binary cluster 102 along with HSC_627.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P296, along with IRAS_20306+4005.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 1.00 (50th percentile).