UPK 85
0.15
UTI
0.25
CN
0.14
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
22.1 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.14 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
UPK 85 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (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.
Close
Low extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 304.919 | 23.839 | 1.087 | 2.092 | -1.62 | -1.391 |
| Cavallo et al. | 2024 | 304.916 | 23.731 | 1.089 | â | â | â |
| Hunt & Reffert | 2023 | 304.933 | 24.03 | 1.089 | 2.064 | -1.596 | -0.619 |
| Sim et al. | 2019 | 304.901 | 23.662 | â | 2.12 | -1.61 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 1.01 | 0.80 | â | 68 | 0.320 | â | â | â |
| Hunt & Reffert | 2023 | 0.88 | 0.57 | 0.58 | 138 | â | â | â | â |
| Sim et al. | 2019 | 0.89 | â | â | 40 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.