HSC 898
0.19
UTI
0.0
CN
0.33
Cdens
0.12
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members)
3.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.33 Loose
- CC3 0.12 Very low quality
- Clit 0.25 Poorly studied
- Cdup 1.0 Unique
Overview
HSC 898 is a sparse, loose object of very low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (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
High 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 | 347.79 | 65.17 | 0.302 | -3.761 | -2.349 | -64.404 |
| Hu & Soubiran | 2025 | 347.812 | 65.165 | â | â | â | â |
| Hunt & Reffert | 2024 | 347.777 | 65.145 | 0.296 | -3.743 | -2.349 | -63.823 |
| Cavallo et al. | 2024 | 347.812 | 65.165 | 0.301 | â | â | â |
| Hunt & Reffert | 2023 | 347.777 | 65.145 | 0.296 | -3.743 | -2.349 | -63.823 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| Hu & Soubiran | 2025 | â | â | â | â | -0.210* | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 260* | â | â |
| Cavallo et al. | 2024 | 2.44 | 3.32 | â | 1000 | -0.330 | â | â | â |
| Hunt & Reffert | 2023 | 2.90 | 2.93 | 1.90 | 871 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.