UPK 307
0.38
UTI
0.5
CN
0.25
Cdens
0.5
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
23.9 [arcmin]
- CN 0.5 Moderately populated
- Cdens 0.25 Loose
- CC3 0.5 Intermediate quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
UPK 307 is a moderately populated, loose object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.
Close
Moderate extinction
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 55.118 | 54.867 | 1.092 | -2.133 | -1.832 | -9.468 |
| Zhang et al. | 2024 | 54.493 | 55.18 | â | â | â | â |
| Hunt & Reffert | 2024 | 54.493 | 55.18 | 1.095 | -2.175 | -1.833 | -14.605 |
| Cavallo et al. | 2024 | 55.185 | 54.864 | 1.099 | â | â | â |
| Hunt & Reffert | 2023 | 54.493 | 55.18 | 1.095 | -2.175 | -1.833 | -14.605 |
| Sim et al. | 2019 | 55.114 | 54.847 | â | -2.13 | -1.82 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Zhang et al. | 2024 | â | â | â | â | -0.212* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 163* | â | â |
| Cavallo et al. | 2024 | 0.93 | 2.55 | â | 13 | -0.090 | â | â | â |
| Hunt & Reffert | 2023 | 0.87 | 2.09 | 1.90 | 22 | â | â | â | â |
| Sim et al. | 2019 | 0.89 | â | â | 18 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.