HSC 2158
0.19
UTI
0.25
CN
0.18
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
25
Core radius and density
1.9 [pc], 0.9 [pc-2]
- CN 0.25 Poorly populated
- Cdens 0.18 Very loose
- CC3 0.5 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 2158 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a very young cluster (see Parameters). It was recently reported in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
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 | 132.136 | -47.751 | 0.139 | -3.251 | 3.762 | â |
| Hunt & Reffert | 2024 | 132.137 | -47.755 | 0.124 | -3.246 | 3.765 | â |
| Hunt & Reffert | 2023 | 132.137 | -47.755 | 0.124 | -3.246 | 3.765 | â |
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 | 6.57 | 2.86 | 0.54 | 19 | â | 804 | â | â |
| Hunt & Reffert | 2024 | 6.57 | 2.86 | 0.54 | 19 | â | 804(1) | â | â |
| Hunt & Reffert | 2023 | 6.57 | 2.86 | 0.54 | 19 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.93 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.93 (50th percentile).