HSC 89
0.04
UTI
0.0
CN
0.08
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members)
4.7 [arcmin]
- CN 0.0 Sparse
- Cdens 0.08 Very loose
- CC3 0.12 Very low quality
- Clit 0.0 Rarely studied
- Cdup 1.0 Unique
Overview
HSC 89 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a 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.
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
Intermediate age
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | â | 255.031 | -14.591 | 0.188 | -1.583 | -4.234 | -12.394 |
| Hunt & Reffert | 2023 | 255.011 | -14.592 | 0.18 | -1.631 | -4.282 | 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 | 4.19 | 2.88 | 1.48 | 925 | â | â | â | â |
Hunt & Reffert (2024)
Classified as a moving group.