HSC 516
0.24
UTI
0.25
CN
0.07
Cdens
0.75
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
25
Core radius and density
2.3 [pc], 0.3 [pc-2]
- CN 0.25 Poorly populated
- Cdens 0.07 Very loose
- CC3 0.75 High quality
- Clit 0.06 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
HSC 516 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 299.731 | 27.154 | 1.048 | 0.43 | -2.203 | -14.7 |
| Zhang et al. | 2024 | 299.745 | 27.196 | â | â | â | â |
| Hunt & Reffert | 2024 | 299.745 | 27.196 | 1.05 | 0.43 | -2.238 | -11.737 |
| Cavallo et al. | 2024 | 299.659 | 26.945 | 1.043 | â | â | â |
| Hunt & Reffert | 2023 | 299.745 | 27.196 | 1.05 | 0.43 | -2.238 | -11.737 |
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 | 0.92 | 0.97 | 1.04 | 97 | 0.126 | 77 | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.239(1) | â | â | â |
| Hunt & Reffert | 2024 | 0.92 | 0.97 | 1.04 | 97 | â | 77(1) | â | â |
| Cavallo et al. | 2024 | 0.96 | 0.81 | â | 224 | 0.490 | â | â | â |
| Hunt & Reffert | 2023 | 0.92 | 0.97 | 1.04 | 97 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P507, along with HSC_521.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).