HSC 1398
0.06
UTI
0.0
CN
0.03
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.1 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.03 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
HSC 1398 is a sparse, very loose object of low 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.
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 | 82.317 | 28.9 | 0.143 | 0.568 | -0.505 | 0.484 |
| Hu & Soubiran | 2025 | 82.26 | 28.927 | â | â | â | â |
| Cavallo et al. | 2024 | 82.261 | 28.928 | 0.151 | â | â | â |
| Hunt & Reffert | 2023 | 82.358 | 28.969 | 0.148 | 0.527 | -0.465 | 0.461 |
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 | 5.755 | 1.84 | 1.94 | 849 | -0.415 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.270(5) | â | â | â |
| Cavallo et al. | 2024 | 5.73 | 1.96 | â | 813 | -0.560 | â | â | â |
| Hunt & Reffert | 2023 | 5.78 | 1.72 | 1.94 | 885 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.