HSC 2688
0.05
UTI
0.0
CN
0.13
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
7.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.13 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2688 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by very high extinction. It is catalogued as a massive, very old 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
Very high extinction
Massive
Very old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 218.136 | -44.797 | 0.437 | -5.571 | -2.315 | 28.781 |
| Hunt & Reffert | 2024 | 218.104 | -44.798 | 0.461 | -5.574 | -2.365 | â |
| Hunt & Reffert | 2023 | 218.104 | -44.798 | 0.461 | -5.574 | -2.365 | 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 | 1897* | â | â |
| Hunt & Reffert | 2023 | 2.07 | 6.22 | 0.81 | 6339 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
