UPK 569
(OCSN 316)
0.63
UTI
0.77
CN
1.0
Cdens
0.75
CC3
0.31
Clit
1.0
Cdup
Radius (P>50% members)
61.7 [arcmin]
- CN 0.77 Rich
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.31 Poorly studied
- Cdup 1.0 Unique
Overview
UPK 569 is a rich, very dense object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is poorly studied in the literature.
Very 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 | 168.86 | -71.859 | 4.074 | -25.699 | -1.277 | 0.766 |
| Cavallo et al. | 2024 | 167.972 | -71.473 | 4.026 | â | â | â |
| Hunt & Reffert | 2023 | 170.38 | -72.114 | 4.027 | -25.424 | -1.049 | 3.936 |
| Qin et al. | 2023 | 169.95 | -72.0 | 4.04 | -25.65 | -1.33 | 3.0 |
| He et al. | 2022 | 169.296 | -71.931 | 4.082 | -25.737 | -1.323 | â |
| Sim et al. | 2019 | 166.749 | -71.519 | â | -25.75 | -1.05 | 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 | 0.25 | 1.04 | â | 14 | -0.050 | â | â | â |
| Hunt & Reffert | 2023 | 0.25 | 0.62 | 0.70 | 27 | â | â | â | â |
| Qin et al. | 2023 | 0.36 | 0.93 | â | 28 | â | â | â | â |
| He et al. | 2022 | â | 0.65 | â | 32 | â | â | â | â |
| Sim et al. | 2019 | 0.25 | â | â | 35 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.