HSC 561
0.09
UTI
0.0
CN
0.07
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad)
0.3 [N/pc2]
- CN 0.0 Sparse
- Cdens 0.07 Very loose
- CC3 0.38 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 561 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by high extinction. It is catalogued as an extremely massive, 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 | 303.408 | 32.492 | 0.151 | -2.888 | -4.778 | -20.578 |
| Hunt & Reffert | 2024 | 303.419 | 32.484 | 0.156 | -2.901 | -4.814 | -30.47 |
| Cavallo et al. | 2024 | 303.45 | 32.503 | 0.153 | â | â | â |
| Hunt & Reffert | 2023 | 303.419 | 32.484 | 0.156 | -2.901 | -4.814 | -30.47 |
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 | 5.73 | 4.565 | 3.04 | 258 | -0.020 | 20074 | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 20074(1) | â | â |
| Cavallo et al. | 2024 | 6.43 | 4.20 | â | 331 | -0.020 | â | â | â |
| Hunt & Reffert | 2023 | 5.03 | 4.93 | 3.04 | 185 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.