HSC 1259
0.15
UTI
0.25
CN
0.14
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
3.5 [arcmin]
- CN 0.25 Poorly populated
- Cdens 0.14 Very loose
- CC3 0.38 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1259 is a poorly populated, 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 a metal-poor, intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~5.98 kpc) differs significantly from the median photometric distance (~4.17 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.
Distant
Moderate extinction
Metal-poor
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 78.819 | 49.663 | 0.167 | 0.725 | -0.486 | -32.371 |
| Hunt & Reffert | 2024 | 78.81 | 49.664 | 0.167 | 0.678 | -0.494 | -0.518 |
| Cavallo et al. | 2024 | 78.796 | 49.707 | 0.169 | â | â | â |
| Hunt & Reffert | 2023 | 78.81 | 49.664 | 0.167 | 0.678 | -0.494 | -0.518 |
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 | 180* | â | â |
| Cavallo et al. | 2024 | 3.40 | 1.23 | â | 468 | -0.650 | â | â | â |
| Hunt & Reffert | 2023 | 4.93 | 0.94 | 2.29 | 413 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.