HSC 2686
0.16
UTI
0.0
CN
0.05
Cdens
0.75
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.05 Very loose
- CC3 0.75 High quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 2686 is a sparse, very loose object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, very 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.
Very distant
Very high extinction
Massive
Near-solar metallicity
Very young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 229.212 | -58.374 | 0.161 | -5.07 | -3.514 | â |
| Hunt & Reffert | 2024 | 229.171 | -58.374 | 0.155 | -5.093 | -3.526 | -56.427 |
| Cavallo et al. | 2024 | 229.197 | -58.338 | 0.155 | â | â | â |
| Hunt & Reffert | 2023 | 229.171 | -58.374 | 0.155 | -5.093 | -3.526 | -56.427 |
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 | 1332* | â | â |
| Cavallo et al. | 2024 | 4.79 | 5.47 | â | 6 | 0.480 | â | â | â |
| Hunt & Reffert | 2023 | 6.12 | 6.18 | 2.15 | 11 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Bronze sample.