UPK 116
(OCSN 298)
0.35
UTI
0.52
CN
0.15
Cdens
0.75
CC3
0.16
Clit
1.0
Cdup
Nm (P>50%)
53
Core radius and density
2.2 [pc], 0.8 [pc-2]
- CN 0.52 Moderately populated
- Cdens 0.15 Very loose
- CC3 0.75 High quality
- Clit 0.16 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UPK 116 is a moderately populated, very loose 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 rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 312.099 | 39.556 | 2.332 | 3.234 | -3.004 | -19.247 |
| Swiggum et al. | 2024 | 312.279 | 39.746 | 2.34 | 3.282 | -3.071 | -19.106 |
| Cavallo et al. | 2024 | 312.004 | 39.302 | 2.332 | â | â | â |
| Hunt & Reffert | 2023 | 312.279 | 39.746 | 2.34 | 3.282 | -3.071 | -20.333 |
| Qin et al. | 2023 | 311.94 | 39.44 | 2.34 | 3.25 | -3.14 | -19.41 |
| He et al. | 2022 | 312.155 | 39.576 | 2.319 | 3.309 | -2.969 | â |
| Sim et al. | 2019 | 312.159 | 39.752 | â | 3.28 | -2.94 | 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 0.435 | 0.24 | 0.77 | 44 | -0.350 | 152 | â | â |
| Liu et al. | 2025 | 0.54 | 0.13 | â | 40 | â | â | â | â |
| Swiggum et al. | 2024 | 0.43 | â | â | 44 | â | 152 | â | â |
| Cavallo et al. | 2024 | 0.44 | 0.24 | â | 8 | -0.350 | â | â | â |
| Hunt & Reffert | 2023 | 0.42 | 0.16 | 0.77 | 44 | â | â | â | â |
| Qin et al. | 2023 | 0.48 | 0.32 | â | 40 | â | â | â | â |
| He et al. | 2022 | â | 0.35 | â | 50 | â | â | â | â |
| Sim et al. | 2019 | 0.43 | â | â | 56 | â | â | â | â |
Liu et al. (2025)
Classified as primordial binary cluster 169 along with HSC_633.
Palma et al. (2025)
Part of multiple system G184, along with HSC_613 and HSC_617.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.86 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.86 (50th percentile).