HSC 2789
0.17
UTI
0.0
CN
0.61
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
3.0 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.61 Moderately dense
- 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 2789 is a sparse, moderately dense object of low 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, 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 | 247.255 | -46.104 | 1.121 | -0.968 | -2.992 | 12.426 |
| Hunt & Reffert | 2024 | 247.237 | -46.121 | 1.112 | -0.995 | -2.952 | -19.973 |
| Cavallo et al. | 2024 | 247.332 | -46.064 | 1.114 | â | â | â |
| Hunt & Reffert | 2023 | 247.237 | -46.121 | 1.112 | -0.995 | -2.952 | -19.973 |
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 | 0.805 | 0.765 | 0.57 | 128 | 0.190 | 65 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 65(1) | â | â |
| Cavallo et al. | 2024 | 0.76 | 0.73 | â | 170 | 0.190 | â | â | â |
| Hunt & Reffert | 2023 | 0.85 | 0.80 | 0.57 | 87 | 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 G166, along with HSC_2802, ASCC_85, HSC_2788 and NGC_6178.
Cavallo et al. (2024)
Gold sample.