HSC 706
0.17
UTI
0.26
CN
0.07
Cdens
0.38
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
26
Core radius and density
2.7 [pc], 0.3 [pc-2]
- CN 0.26 Poorly populated
- Cdens 0.07 Very loose
- CC3 0.38 Low 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 706 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (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 | 314.34 | 50.041 | 0.397 | -1.573 | -4.075 | -17.004 |
| Hu & Soubiran | 2025 | 314.288 | 50.033 | â | â | â | â |
| Hunt & Reffert | 2024 | 314.32 | 50.041 | 0.396 | -1.489 | -4.028 | -28.84 |
| Cavallo et al. | 2024 | 314.288 | 50.033 | 0.394 | â | â | â |
| Hunt & Reffert | 2023 | 314.32 | 50.041 | 0.396 | -1.489 | -4.028 | -28.84 |
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 | 2.3 | 3.17 | 2.08 | 139 | -0.240 | 205 | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.010(5) | â | â | â |
| Hunt & Reffert | 2024 | 2.30 | 3.17 | 2.08 | 139 | â | 205(1) | â | â |
| Cavallo et al. | 2024 | 1.72 | 2.88 | â | 537 | -0.470 | â | â | â |
| Hunt & Reffert | 2023 | 2.30 | 3.17 | 2.08 | 139 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.23 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.23 (50th percentile).