HSC 1622
0.20
UTI
0.0
CN
0.11
Cdens
0.38
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
16.6 [arcmin]
- CN 0.0 Sparse
- Cdens 0.11 Very loose
- CC3 0.38 Low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 1622 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a low-mass, 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.
Relatively close
Low extinction
Low mass
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 | 99.547 | 6.136 | 0.761 | 0.252 | -3.678 | 20.908 |
| Zhang et al. | 2024 | 99.567 | 6.161 | â | â | â | â |
| Hunt & Reffert | 2024 | 99.567 | 6.161 | 0.76 | 0.261 | -3.666 | 31.753 |
| Cavallo et al. | 2024 | 99.526 | 6.116 | 0.76 | â | â | â |
| Hunt & Reffert | 2023 | 99.567 | 6.161 | 0.76 | 0.261 | -3.666 | 31.753 |
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 | -0.162* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 45* | â | â |
| Cavallo et al. | 2024 | 1.31 | 0.73 | â | 224 | 0.290 | â | â | â |
| Hunt & Reffert | 2023 | 1.21 | 0.65 | 0.80 | 159 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.