HSC 1385
0.25
UTI
0.0
CN
0.28
Cdens
0.38
CC3
0.3
Clit
1.0
Cdup
Stellar density (N50/rad)
1.4 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.28 Loose
- CC3 0.38 Low quality
- Clit 0.3 Poorly 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 1385 is a sparse, loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the distance and age parameters (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 | 85.071 | 31.853 | 1.321 | -0.862 | -3.348 | -37.051 |
| Hu & Soubiran | 2025 | 85.047 | 31.825 | â | â | â | â |
| Zhang et al. | 2024 | 85.172 | 31.799 | â | â | â | â |
| Cavallo et al. | 2024 | 85.047 | 31.824 | 1.311 | â | â | â |
| Hunt & Reffert | 2023 | 85.172 | 31.799 | 1.311 | -0.843 | -3.373 | -41.518 |
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 | 0.8 | 0.75 | 0.26 | 951 | -0.170 | â | â | â |
| Liu et al. | 2025 | 2.99 | 0.75 | â | 214 | â | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.260(5) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.082(1) | â | â | â |
| Cavallo et al. | 2024 | 0.80 | 1.00 | â | 1230 | -0.170 | â | â | â |
| Hunt & Reffert | 2023 | 0.72 | 0.75 | 0.26 | 951 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 192 along with UPK_369.
Palma et al. (2025)
Classified as optical pair P427, along with UPK_369.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.