UPK 447
0.19
UTI
0.0
CN
0.18
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
17.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.18 Very loose
- CC3 0.25 Low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
UPK 447 is a sparse, very loose 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 low-mass, near-solar metallicity, young cluster (see Parameters). It is poorly 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.
Close
Low extinction
Low mass
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 103.987 | -10.242 | 1.007 | -3.653 | 0.459 | 39.147 |
| Hunt & Reffert | 2024 | 103.906 | -10.265 | 0.99 | -3.605 | 0.415 | 31.645 |
| Cavallo et al. | 2024 | 104.306 | -9.923 | 0.991 | â | â | â |
| Hunt & Reffert | 2023 | 103.906 | -10.265 | 0.99 | -3.605 | 0.415 | 31.645 |
| Sim et al. | 2019 | 104.241 | -10.115 | â | -3.6 | 0.41 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 45* | â | â |
| Cavallo et al. | 2024 | 0.98 | 0.59 | â | 50 | -0.220 | â | â | â |
| Hunt & Reffert | 2023 | 0.97 | 0.48 | 1.09 | 65 | â | â | â | â |
| Sim et al. | 2019 | 0.96 | â | â | 45 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.