HSC 1798
0.16
UTI
0.0
CN
0.06
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.06 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1798 is a sparse, very loose object of high C3 quality. Its parallax locates it at a large* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~5.93 kpc) differs significantly from the median photometric distance (~4.55 kpc).
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.
Distant
Moderate 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 | 105.281 | -15.596 | 0.169 | -0.521 | 1.621 | â |
| Hunt & Reffert | 2024 | 105.298 | -15.617 | 0.159 | -0.523 | 1.638 | â |
| Cavallo et al. | 2024 | 105.22 | -15.587 | 0.159 | â | â | â |
| Hunt & Reffert | 2023 | 105.298 | -15.617 | 0.159 | -0.523 | 1.638 | 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 | 292* | â | â |
| Cavallo et al. | 2024 | 3.50 | 1.22 | â | 174 | -0.100 | â | â | â |
| Hunt & Reffert | 2023 | 5.61 | 1.57 | 1.76 | 89 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.