HSC 1721
0.08
UTI
0.0
CN
0.26
Cdens
0.25
CC3
0.0
Clit
0.8
Cdup
Radius (P>50% members)
6.3 [arcmin]
- CN 0.0 Sparse
- Cdens 0.26 Loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 0.8 Very likely unique
Overview
HSC 1721 is a sparse, loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.
â ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=0.8) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.
Relatively close
Moderate extinction
Near-solar metallicity
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 104.967 | -4.518 | 0.446 | -1.89 | 0.601 | â |
| Hunt & Reffert | 2024 | 104.983 | -4.501 | 0.444 | -1.886 | 0.568 | â |
| Cavallo et al. | 2024 | 104.995 | -4.505 | 0.444 | â | â | â |
| Hunt & Reffert | 2023 | 104.983 | -4.501 | 0.444 | -1.886 | 0.568 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2024 | â | â | â | â | â | 117* | â | â |
| Cavallo et al. | 2024 | 2.36 | 1.28 | â | 24 | -0.210 | â | â | â |
| Hunt & Reffert | 2023 | 2.11 | 1.47 | 1.05 | 48 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.