HSC 2355
0.20
UTI
0.0
CN
0.35
Cdens
0.62
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
1.8 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.35 Loose
- CC3 0.62 Intermediate 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 2355 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (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 | 151.646 | -64.823 | 0.684 | -7.66 | 5.126 | -11.792 |
| Hu & Soubiran | 2025 | 151.774 | -64.858 | â | â | â | â |
| Cavallo et al. | 2024 | 151.774 | -64.858 | 0.683 | â | â | â |
| Hunt & Reffert | 2023 | 151.58 | -64.84 | 0.681 | -7.63 | 5.053 | -17.063 |
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 | 1.295 | 0.305 | 0.64 | 1450 | 0.005 | â | â | â |
| Hu & Soubiran | 2025 | â | â | â | â | -0.240(5) | â | â | â |
| Cavallo et al. | 2024 | 1.19 | 0.30 | â | 2138 | 0.250 | â | â | â |
| Hunt & Reffert | 2023 | 1.40 | 0.31 | 0.64 | 762 | 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.