HSC 1366
0.09
UTI
0.0
CN
0.19
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
1.0 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.19 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1366 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 86.584 | 35.194 | 0.35 | 1.165 | -2.422 | 13.575 |
| Hunt & Reffert | 2024 | 86.625 | 35.154 | 0.336 | 1.17 | -2.425 | 13.633 |
| Cavallo et al. | 2024 | 86.574 | 35.175 | 0.336 | â | â | â |
| Hunt & Reffert | 2023 | 86.625 | 35.154 | 0.336 | 1.17 | -2.425 | 13.633 |
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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 2.87 | 2.44 | 1.85 | 323 | 0.670 | 328 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 328(1) | â | â |
| Cavallo et al. | 2024 | 2.96 | 2.58 | â | 257 | 0.670 | â | â | â |
| Hunt & Reffert | 2023 | 2.78 | 2.30 | 1.85 | 389 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
MOCA


Palma et al. (2025)
Classified as optical pair P424, along with Koposov_10.
Cavallo et al. (2024)
Gold sample.