HSC 55
0.16
UTI
0.0
CN
0.3
Cdens
0.5
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
7.9 [arcmin]
- CN 0.0 Sparse
- Cdens 0.3 Loose
- CC3 0.5 Intermediate quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 55 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a young 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.
Relatively close
Moderate extinction
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 267.698 | -24.709 | 0.625 | 1.595 | -1.087 | â |
| Hunt & Reffert | 2024 | 267.679 | -24.714 | 0.607 | 1.573 | -1.081 | â |
| Hunt & Reffert | 2023 | 267.679 | -24.714 | 0.607 | 1.573 | -1.081 | 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 | 2024 | â | â | â | â | â | 203* | â | â |
| Hunt & Reffert | 2023 | 1.56 | 2.56 | 1.34 | 97 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
