HSC 2521
0.05
UTI
0.0
CN
0.02
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.8 [arcmin]
- CN 0.0 Sparse
- Cdens 0.02 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2521 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~9.95 kpc) differs significantly from the median photometric distance (~7.54 kpc).
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.
Very distant
Moderate extinction
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 189.293 | -59.315 | 0.101 | -5.973 | -0.402 | 45.295 |
| Hunt & Reffert | 2023 | 189.321 | -59.35 | 0.106 | -5.975 | -0.387 | 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] | Bfr | BSS |
|---|---|---|---|---|---|---|---|---|---|
| Hunt & Reffert | 2023 | 7.54 | 2.27 | 0.90 | 1479 | â | â | â | â |
Hunt & Reffert (2024)
Classified as a moving group.