HSC 204
0.15
UTI
0.0
CN
0.65
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
11.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.65 Moderately dense
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 204 is a sparse, moderately dense object of very low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, 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.
Close
Moderate extinction
Metal-poor
Young
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 275.162 | -12.378 | 1.403 | 0.251 | -4.822 | -7.567 |
| Hunt & Reffert | 2024 | 275.137 | -12.371 | 1.462 | 0.307 | -4.766 | -11.943 |
| Cavallo et al. | 2024 | 275.416 | -12.145 | 1.464 | â | â | â |
| Hunt & Reffert | 2023 | 275.137 | -12.371 | 1.462 | 0.307 | -4.766 | -11.943 |
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 | 57* | â | â |
| Cavallo et al. | 2024 | 0.61 | 1.66 | â | 37 | -0.570 | â | â | â |
| Hunt & Reffert | 2023 | 0.65 | 1.01 | 1.12 | 126 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.