HSC 1399
0.08
UTI
0.0
CN
0.13
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.7 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.13 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 1399 is a sparse, very loose object of low C3 quality. Its parallax locates it at a 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.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 89.581 | 32.58 | 1.295 | 2.183 | -5.005 | -20.401 |
| Zhang et al. | 2024 | 89.336 | 32.66 | â | â | â | â |
| Cavallo et al. | 2024 | 89.68 | 32.481 | 1.29 | â | â | â |
| Hunt & Reffert | 2023 | 89.336 | 32.66 | 1.287 | 2.173 | -5.025 | -17.946 |
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 | 0.735 | 0.66 | 0.77 | 116 | -0.137 | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.013(1) | â | â | â |
| Cavallo et al. | 2024 | 0.74 | 0.70 | â | 141 | -0.260 | â | â | â |
| Hunt & Reffert | 2023 | 0.73 | 0.62 | 0.77 | 92 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P428, along with Theia_874.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.