HSC 177
0.06
UTI
0.0
CN
0.03
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
5.1 [arcmin]
- CN 0.0 Sparse
- Cdens 0.03 Very loose
- CC3 0.25 Low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 177 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~7.93 kpc) differs significantly from the median photometric distance (~5.30 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.
Very distant
Low extinction
Old
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 286.844 | -22.374 | 0.126 | -0.06 | -7.659 | 3.758 |
| Hunt & Reffert | 2023 | 286.827 | -22.377 | 0.144 | -0.043 | -7.705 | 10.244 |
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 | 2023 | 5.30 | 0.38 | 0.95 | 4102 | â | â | â | â |
Hunt & Reffert (2024)
Classified as a moving group.