HSC 521
0.15
UTI
0.26
CN
0.1
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
26.7 [arcmin]
- CN 0.26 Poorly populated
- Cdens 0.1 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 521 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate 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.
Close
Moderate extinction
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 299.423 | 28.087 | 1.096 | -0.907 | -4.502 | -22.875 |
| Cavallo et al. | 2024 | 299.373 | 28.08 | 1.065 | â | â | â |
| Hunt & Reffert | 2023 | 299.452 | 28.131 | 1.064 | -0.907 | -4.503 | -9.009 |
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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Cavallo et al. | 2024 | 1.00 | 1.30 | â | 85 | 0.370 | â | â | â |
| Hunt & Reffert | 2023 | 0.89 | 1.04 | 0.92 | 164 | â | â | â | â |
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as a moving group.