CWNU 1270
- CN 0.0 Sparse
- Cdens 0.22 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
CWNU 1270 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, near the mid-plane. It is catalogued as a metal-poor, young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is rarely studied in the literature. 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 | – | 343.476 | 51.22 | 2.11 | 3.168 | 0.075 | -0.423 |
| Cavallo et al. | 2024 | 343.679 | 51.214 | 2.108 | – | – | – |
| Hunt & Reffert | 2023 | 344.047 | 50.869 | 2.115 | 3.187 | 0.112 | 2.66 |
| He et al. | 2022 | 343.1 | 51.337 | 2.121 | 3.084 | 0.051 | – |
💡 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 0.52 | 0.71 | – | 15 | -0.540 | – | – | – |
| Hunt & Reffert | 2023 | 0.46 | 0.03 | 0.23 | 95 | – | – | – | – |
| He et al. | 2022 | – | 0.60 | – | 126 | – | – | – | – |
💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
