HSC 917
0.21
UTI
0.0
CN
0.56
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
2.2 [arcmin]
- CN 0.0 Sparse
- Cdens 0.56 Moderately dense
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 917 is a sparse, moderately dense object of intermediate 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.
Distant
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 | 354.647 | 63.489 | 0.219 | -2.36 | -0.966 | -77.79 |
| Hunt & Reffert | 2024 | 354.638 | 63.491 | 0.236 | -2.337 | -0.972 | -77.728 |
| Cavallo et al. | 2024 | 354.722 | 63.49 | 0.239 | â | â | â |
| Hunt & Reffert | 2023 | 354.638 | 63.491 | 0.236 | -2.337 | -0.972 | -77.728 |
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 | 351* | â | â |
| Cavallo et al. | 2024 | 3.93 | 3.67 | â | 251 | -0.150 | â | â | â |
| Hunt & Reffert | 2023 | 3.52 | 3.44 | 1.83 | 379 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Silver sample.