HSC 1918
0.15
UTI
0.0
CN
0.12
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
19.0 [arcmin]
- CN 0.0 Sparse
- Cdens 0.12 Very loose
- CC3 0.62 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1918 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low 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
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 | 120.39 | -21.754 | 0.926 | -7.808 | 8.726 | 77.393 |
| Cavallo et al. | 2024 | 120.297 | -21.572 | 0.921 | â | â | â |
| Hunt & Reffert | 2023 | 120.399 | -21.776 | 0.925 | -7.761 | 8.624 | 77.508 |
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 | 1.06 | 0.49 | â | 447 | 0.080 | â | â | â |
| Hunt & Reffert | 2023 | 1.04 | 0.11 | 0.20 | 433 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.