HSC 2816
0.00
UTI
0.64
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.0
Cdup
Stellar density (N50/rad)
9.9 [N/pc2]
- CN 0.64 Moderately populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.0 Very likely duplicate
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 2816 is a moderately populated, very dense 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.
â ī¸ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 240.356 | -38.409 | 7.173 | -17.709 | -27.445 | 2.136 |
| Liu et al. | 2025 | 240.14 | -38.44 | 7.19 | -17.66 | -27.56 | 2.62 |
| Cavallo et al. | 2024 | 240.773 | -38.254 | 7.192 | â | â | â |
| Hunt & Reffert | 2023 | 240.14 | -38.439 | 7.192 | -17.657 | -27.556 | 2.624 |
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 | 0.14 | 0.24 | 0.41 | 14 | 0.050 | â | â | â |
| Liu et al. | 2025 | 0.15 | 0.04 | â | 14 | â | â | â | â |
| Cavallo et al. | 2024 | 0.14 | 0.97 | â | 38 | 0.050 | â | â | â |
| Hunt & Reffert | 2023 | 0.14 | 0.24 | 0.41 | 9 | â | â | â | â |
Liu et al. (2025)
Classified as primordial binary cluster 245 along with OCSN_92, and of multiple system 70 along with HSC_2630, HSC_2636, UPK_606, HSC_2733, OCSN_92 and OCSN_91.
Palma et al. (2025)
Part of multiple system G232, along with OCSN_92, OCSN_91 and HSC_2733.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.