HSC 1542
0.15
UTI
0.31
CN
0.06
Cdens
0.25
CC3
0.06
Clit
1.0
Cdup
Nm (P>50%)
31
Core radius and density
3.6 [pc], 0.3 [pc-2]
- CN 0.31 Poorly populated
- Cdens 0.06 Very loose
- CC3 0.25 Low quality
- Clit 0.06 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 1542 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a very close distance, near 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 | 91.331 | 14.532 | 7.144 | 0.807 | -11.117 | 19.796 |
| Yang et al. | 2025 | 93.717 | 15.552 | â | â | â | â |
| Zhang et al. | 2024 | 93.717 | 15.552 | â | â | â | â |
| Cavallo et al. | 2024 | 90.952 | 14.488 | 7.085 | â | â | â |
| Hunt & Reffert | 2023 | 93.717 | 15.552 | 7.087 | 0.837 | -10.586 | 19.173 |
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 | 0.145 | 0.45 | 1.25 | 179 | -0.021 | â | â | â |
| Yang et al. | 2025 | â | â | â | 178 | -0.060(3) | â | â | â |
| Zhang et al. | 2024 | â | â | â | â | -0.021(1) | â | â | â |
| Cavallo et al. | 2024 | 0.14 | 0.62 | â | 309 | 0.210 | â | â | â |
| Hunt & Reffert | 2023 | 0.15 | 0.28 | 1.25 | 179 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G123, along with HSC_1715 and HSC_1630.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.30 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.30 (50th percentile).