HSC 178
0.07
UTI
0.48
CN
1.0
Cdens
1.0
CC3
0.0
Clit
0.15
Cdup
Radius (P>50% members)
1.2 [arcmin]
- CN 0.48 Poorly populated
- Cdens 1.0 Very dense
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 0.15 Likely duplicate
Overview
HSC 178 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.
â ī¸ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.
(*): The parallax distance estimate (~3.17 kpc) differs significantly from the median photometric distance (~2.44 kpc).
Relatively close
High extinction
Massive
Near-solar metallicity
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 274.41 | -16.36 | 0.315 | -0.534 | -1.031 | 41.193 |
| Hunt & Reffert | 2024 | 274.416 | -16.359 | 0.333 | -0.531 | -1.018 | 43.543 |
| Cavallo et al. | 2024 | 274.396 | -16.361 | 0.326 | â | â | â |
| Hunt & Reffert | 2023 | 274.416 | -16.359 | 0.333 | -0.531 | -1.018 | 43.543 |
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 | 1145* | â | â |
| Cavallo et al. | 2024 | 2.00 | 4.43 | â | 282 | -0.160 | â | â | â |
| Hunt & Reffert | 2023 | 2.87 | 4.50 | 2.19 | 104 | â | â | â | â |
(*): Indicates that this parameter is assigned more than one value in the corresponding reference.
Cavallo et al. (2024)
Gold sample.