HSC 1146
0.08
UTI
0.0
CN
0.13
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Nm (P>50%)
20
Core radius and density
1.4 [pc], 0.6 [pc-2]
- 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 1146 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as an 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 | 51.502 | 56.122 | 1.31 | 1.611 | -5.134 | -6.796 |
| Hunt & Reffert | 2023 | 51.325 | 56.206 | 1.308 | 1.517 | -5.107 | -7.981 |
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 | 0.74 | 2.11 | 0.51 | 209 | â | â | â | â |
| Hunt & Reffert | 2023 | 0.74 | 2.11 | 0.51 | 209 | â | â | â | â |
Palma et al. (2025)
Part of multiple system G104, along with CWNU_119 and King_6.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.93 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.93 (50th percentile).