HSC 1138
0.26
UTI
0.28
CN
0.0
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
3.2 [arcmin]
- CN 0.28 Poorly populated
- Cdens 0.0 Very loose
- CC3 1.0 Very high quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 1138 is a poorly populated, very loose object of very high C3 quality. Its parallax locates it at a very large* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.
(*): The parallax distance estimate (~40.49 kpc) differs significantly from the median photometric distance (~3.84 kpc).
Distant
Moderate extinction
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 148.936 | 69.116 | 0.025 | 0.098 | -0.036 | â |
| Hunt & Reffert | 2023 | 148.978 | 69.12 | 0.077 | 0.199 | -0.16 | â |
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 | 3.84 | 2.07 | 1.36 | 161 | â | â | â | â |


Hunt & Reffert (2024)
Rejected: M 81 galaxy.