HSC 181
0.28
UTI
0.37
CN
0.46
Cdens
0.5
CC3
0.03
Clit
1.0
Cdup
Nm (P>50%)
37
Core radius and density
1.3 [pc], 2.3 [pc-2]
- CN 0.37 Poorly populated
- Cdens 0.46 Loose
- CC3 0.5 Intermediate 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 181 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a 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 | 277.225 | -17.035 | 1.655 | -2.65 | -6.214 | -0.939 |
| Hunt & Reffert | 2024 | 277.273 | -17.037 | 1.64 | -2.691 | -6.234 | 40.69 |
| Cavallo et al. | 2024 | 277.26 | -17.013 | 1.64 | â | â | â |
| Hunt & Reffert | 2023 | 277.273 | -17.037 | 1.64 | -2.691 | -6.234 | 40.69 |
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 | 0.57 | 0.83 | 0.84 | 80 | 0.100 | 90 | â | â |
| Hunt & Reffert | 2024 | 0.57 | 0.83 | 0.84 | 80 | â | 90(1) | â | â |
| Cavallo et al. | 2024 | 0.61 | 0.92 | â | 69 | 0.100 | â | â | â |
| Hunt & Reffert | 2023 | 0.57 | 0.83 | 0.84 | 80 | 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 G131, along with NGC_6618 and Alessi_40.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).