HSC 1667
0.28
UTI
0.0
CN
0.42
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
2.1 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.42 Loose
- CC3 1.0 Very high 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 1667 is a sparse, loose object of very high 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, very young cluster, but with a large variance across recent sources for the absorption parameter (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 | 80.765 | -8.55 | 6.405 | 8.646 | -12.356 | 24.046 |
| Cavallo et al. | 2024 | 80.539 | -7.671 | 6.412 | â | â | â |
| Hunt & Reffert | 2023 | 81.034 | -8.667 | 6.403 | 8.583 | -12.714 | 24.75 |
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 | 0.15 | 0.92 | 0.63 | 11 | 0.360 | â | â | â |
| Liu et al. | 2025 | 0.18 | 0.02 | â | 8 | â | â | â | â |
| Cavallo et al. | 2024 | 0.15 | 0.92 | â | 25 | 0.360 | â | â | â |
| Hunt & Reffert | 2023 | 0.15 | 1.39 | 0.63 | 11 | â | â | â | â |
Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 84 along with CWNU_1015.
Palma et al. (2025)
Classified as optical pair P289, along with CWNU_1057.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.