HSC 100
0.34
UTI
0.51
CN
0.11
Cdens
1.0
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
52
Core radius and density
3.9 [pc], 0.5 [pc-2]
- CN 0.51 Moderately populated
- Cdens 0.11 Very loose
- CC3 1.0 Very high quality
- Clit 0.03 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 100 is a moderately populated, very loose object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 272.375 | -24.059 | 0.383 | -0.866 | -2.65 | 27.101 |
| Hunt & Reffert | 2024 | 272.426 | -24.05 | 0.374 | -0.892 | -2.642 | 27.06 |
| Cavallo et al. | 2024 | 272.401 | -24.062 | 0.381 | â | â | â |
| Hunt & Reffert | 2023 | 272.426 | -24.05 | 0.374 | -0.892 | -2.642 | 27.06 |
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 | 2.33 | 4.88 | 3.04 | 94 | 0.490 | 2134 | â | â |
| Hunt & Reffert | 2024 | 2.33 | 4.88 | 3.04 | 93 | â | 2134(1) | â | â |
| Cavallo et al. | 2024 | 2.75 | 4.28 | â | 240 | 0.490 | â | â | â |
| Hunt & Reffert | 2023 | 2.33 | 4.88 | 3.04 | 94 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Classified as optical pair P401, along with HSC_115.
Cavallo et al. (2024)
Bronze sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.07 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.07 (50th percentile).