HSC 1709
0.13
UTI
0.25
CN
0.28
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
68.8 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.28 Loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1709 is a poorly populated, loose object of very low 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, intermediate-age 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.
Very close
Low extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 92.739 | -8.343 | 4.774 | -0.987 | -20.947 | 25.553 |
| Zhang et al. | 2024 | 93.09 | -8.811 | â | â | â | â |
| Cavallo et al. | 2024 | 92.79 | -8.804 | 4.783 | â | â | â |
| Hunt & Reffert | 2023 | 93.09 | -8.811 | 4.787 | -1.118 | -20.898 | 6.917 |
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 | -0.001* | â | â | â |
| Cavallo et al. | 2024 | 0.21 | 0.70 | â | 316 | 0.330 | â | â | â |
| Hunt & Reffert | 2023 | 0.21 | 0.40 | 0.60 | 274 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.