HSC 2778
0.07
UTI
0.0
CN
0.09
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.4 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.09 Very loose
- CC3 0.25 Low 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 2778 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as an 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 | 250.597 | -50.773 | 0.836 | -0.368 | -0.675 | â |
| Hunt & Reffert | 2024 | 250.651 | -50.763 | 0.837 | -0.374 | -0.73 | â |
| Hunt & Reffert | 2023 | 250.651 | -50.763 | 0.837 | -0.374 | -0.73 | â |
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 | 1.13 | 2.09 | 1.29 | 156 | â | 77 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 77(1) | â | â |
| Hunt & Reffert | 2023 | 1.13 | 2.09 | 1.29 | 156 | 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 G165, along with HSC_2785, NGC_6134, NGC_6193, Theia_1643, NGC_6204 and CWNU_1842.