HSC 1830
0.11
UTI
0.0
CN
0.19
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
12.5 [arcmin]
- CN 0.0 Sparse
- Cdens 0.19 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1830 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, below 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 absorption 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
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 | 107.424 | -18.271 | 0.73 | -4.306 | 2.175 | 32.969 |
| Cavallo et al. | 2024 | 107.365 | -18.222 | 0.719 | â | â | â |
| Hunt & Reffert | 2023 | 107.427 | -18.284 | 0.705 | -4.263 | 2.174 | 38.419 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 1.31 | 0.00 | â | 479 | 0.430 | â | â | â |
| Hunt & Reffert | 2023 | 1.32 | 0.22 | 0.28 | 146 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.